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Construction Chemicals

Our product range includes a wide range of microsilica (silica fume) (white), silica flour, zeolite powder, ground granulated blast furnace slag ( ggbs), calcium hydroxide lime powder and white bentonite powder.

Microsilica (Silica Fume) (White)

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Microsilica (Silica Fume) (White)
  • Microsilica (Silica Fume) (White)
  • Microsilica (Silica Fume) (White)
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Approx. Rs 21 / KilogramGet Latest Price

Product Details:
Minimum Order Quantity50 Kilogram
Packaging Size50 Kg/bag
ColorWhite
StatePowdered
Packaging TypeHDPE Bags
Density0.76 gm/cc
PH Value6.90
BrandAstrra Chemicals

    We are leading manufacturers and exporters of the best quality Microsilica ( Silica Fume Densified ). It is a construction chemical, which is also known as silica fume. Commonly it is used mineral admixture in high strength concrete. If it gets mixed with the concrete, it enhances the strength and workability. It is commonly used in the construction of bridges and nuclear plants.


    Features:
    • Longer shelf life
    • Accurate composition
    • Optimum binding strength
    • Purity
    • Accurate composition
    • Longer shelf life
    • Aggregate Concrete
    • Concrete Admixture
    • Cement admixture
    • Ultra High Strength Concrete

       


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    Silica Flour

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    Silica Flour
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    Approx. Rs 14.50 / KilogramGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kilogram
    ColorWhite
    GradeMycosil - 200M
    Packaging Size50 Kgs
    StatePowdered
    Boiling Point2.623 Deg C
    BrandAstrra Chemicals

    Backed by the vast experience of this domain, we are manufacturing, wholesaling and exporting superior quality Silica Flour. It is hydrophilic and used as a thickening agent for various lubricants and resin. In appearance, it is a white color powder and commonly used in the construction, paining and other industries.

    Features:

    • Longer shelf life
    • Precise pH value
    • Purity


    Certificate of analysis:

    SiO2

    99. 5%

    Al2O3

    0. 08%

    TiO2

    0. 04%

    CaO

    0. 01%

    MgO

    0. 01%

    L.O.I.

    0. 28%

    Alkalies

    0. 29%

    Fe2O3

    0. 04%

    MESH

    200


    Additional Information:

  • Production Capacity: 100 tonnes
  • Delivery Time: 7 days
  • Packaging Details: HDPE Bags
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    Zeolite Powder

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    Zeolite Powder
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    Approx. Rs 69 / KilogramGet Latest Price

    Product Details:
    Minimum Order Quantity100 Kilogram
    BrandAstrra Chemicals
    GradeIndustrial
    Packaging TypeHDPE Bag
    ColorWhite
    FormPowder
    Packaging Size25 kg/bag

    Zeolite Powder 

    Pertaining to the clients' requirements, we are engaged in manufacturing, supplying, wholesaling and exporting quality assured Zeolite Powder. This powder is processed using superior quality ingredients that are sourced from accredited vendors of the market. To rule out the possibility of any impurity, this powder is stringently checked on various aspects like composition and shelf life.

    Features:
    • Highly effective
    • Purity
    • Balanced pH

    Additional Information:

  • Production Capacity: 10000 Kgs
  • Delivery Time: 7 to 10 Days
  • Packaging Details: Brand New Hdpe Bags
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    Ground Granulated Blast Furnace Slag ( GGBS)

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    Ground Granulated Blast Furnace Slag ( GGBS)
    • Ground Granulated Blast Furnace Slag ( GGBS)
    • Ground Granulated Blast Furnace Slag ( GGBS)
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    Approx. Rs 12.5 / KgGet Latest Price

    Product Details:
    Minimum Order Quantity100 Kg
    Packaging Size50 kg/bag
    Packaging TypeHDPE Bag
    StatePowdered
    ColorGrey
    BrandAstrra Chemicals
    Moisture0.10

    We are leading manufacturers, exporters & suppliers of Ground granulated blast-furnace slag ( GGBS ), GGBS is used to make durable concrete structures in combination with ordinary portland cement and/or other pozzolanic materials. GGBS has been widely used in Europe, and increasingly in the United States and in Asia (particularly in Japan and Singapore) for its superiority in concrete durability, extending the lifespan of buildings from fifty years to a hundred years.Two major uses of GGBS are in the production of quality-improved slag cement, namely Portland Blastfurnace cement (PBFC) and high-slag blast-furnace cement (HSBFC), with GGBS content ranging typically from 30 to 70%; and in the production of ready-mixed or site-batched durable concrete. Concrete made with GGBS cement sets more slowly than concrete made with ordinary Portland cement, depending on the amount of GGBS in the cementitious material, but also continues to gain strength over a longer period in production conditions. This results in lower heat of hydration and lower temperature rises, and makes avoiding cold joints easier, but may also affect construction schedules where quick setting is required. Use of GGBS significantly reduces the risk of damages caused by alkali–silica reaction (ASR), provides higher resistance to chloride ingress reducing the risk of reinforcement corrosion and provides higher resistance to attacks by sulfate and other chemicals.

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    Zeolite Powder

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    Zeolite Powder
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    Approx. Rs 100 / KgGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kg
    Packaging TypeHDPE Bag
    BrandAstrra Chemicals
    pH4.5 - 5.5. ( 10% Solids )
    Bulk density0.4 - 0.5 (Kg/Lit)
    Specific surface area19.2 m2/g (bet )
    Specific gravity2.6

    Leveraging on our years of experience, we have been committed to manufacture, supply, wholesale and export quality assured Zeolite Powder. Our offered chemical is processed using high quality ingredients that are sourced from authentic vendors of the market. This chemical is widely used in animal husbandry, agricultural and construction applications.

    Features:
    • Purity
    • Accurate composition
    • Longer shelf life

    Certificate Of Analysis:
    SiO252
    Al2O346
    Fe2O3 ( Max.)0.6
    TiO2 ( Max .)0.65
    CaO ( Max .)0.09
    MgO ( Max .)0.03
    Na2O ( Max .)0.1
    K2O ( Max . )0.03
    Loss on ignition1
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    Calcium Hydroxide Lime Powder

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    Approx. Rs 10.50 / KilogramGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kilogram
    BrandAstrra Chemicals
    FormPowder
    Lime as Ca90% (OH)2
    Active CaO68%
    Acid insolubles1%
    Magnesia as MgO0.6%


    We are the leading manufactures, exporters,technical developers and suppliers Hydrated Lime CLime Stone Powder ) in Chennai, Tamil Nadu, 
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    White Bentonite Powder

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    White Bentonite Powder
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    Approx. Rs 18.5 / KgGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kg
    StatePowdered
    ColorWhite
    BrandAstrra Chemicals
    Brightnesss93.50%
    Whiteness95.80%
    Oil Absorption64.00 Ml/100gm
    Water Absorpation66.80 Ml/100gm

    We are identified as one of a prominent manufacturer, supplier, wholesaler and exporter of superior grade Bentonite 

    Typical analysis:
    SiO252. 86%
    CaO0. 28%
    MgO0. 20%
    Fe2O30. 45%
    Al2O344.10%
    Loss On Ignition0. 85%
    Na2o0. 25%
    K2o0. 20%
    Tio20. 36%
    Ret. On 500 Mesh0. 05%
    Bd0.50 gm/cc
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    Calcium Carbonate ( Oyster Shell )

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    Approx. Rs 29 / KilogramGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kilogram
    ColorWhite
    ApplicationConstruction Industry
    State Of MatterPowder
    BrandAstrra Chemicals
    Tapped density0.8930 gm/l
    Particle size98.00% through 300 mesh
    Assay98.90% (on dried basis)

    We are engaged in manufacturing and exporting a Calcium Carbonate ( Oyster Shell ). The salient feature of our natural Powdered Calcium Carbonate is its high wet ability and weather resistance capacity. Our customer can avail these Oyster Shell Powders at affordable prices with us.

    Features:

    • Accurate formula
    • Effective composition
    • Longer shelf life

    Certificate of analysis:
    DescriptionWhite Powder
    Subs. Insoluble in acid0. 31%
    ArsenicComplies
    Heavy MetalsComplies
    BariumComplies
    IronComplies
    Magnesium and Alkali metals0. 63%
    ChlorideComplies
    SulphateComplies
    Loss on drying (at 200 Deg.C for 3 hours)0.2150%
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    Micronised Barium Sulphate

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    Micronised Barium Sulphate
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    Approx. Rs 48 / KgGet Latest Price

    Product Details:
    Minimum Order Quantity100 Kg
    Packaging Size50 KGS
    GradeMICRONISED
    BrandAstrra Chemicals
    Chemical FormulaBaSO4
    Density4.5 g/cm3
    Melting Point1,580 Deg C
    Molar mass233.38 g/mol

    Micronised Barium Sulphate

    We are the leading manufactures, exporters,technical developers and suppliers of Micronised Barium Sulphate in Chennai, Tamil Nadu.


    Product Details:

    BaSo4

    95.00% Min

    SiO2

    02.00% Max

    Brightness

    94.00% Min.

    Whiteness

    94.00% Min


    Additional Information:

  • Production Capacity: 500 tonnes per month
  • Delivery Time: Within 7 days
  • Packaging Details: Double lined HDPE Bags
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    Brown Aluminum Oxide

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    Approx. Rs 72 / KilogramGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kilogram
    ColorBrown
    BrandAstrra Chemicals
    FormPowder
    Packaging Size25KG
    Usage/ApplicationIndustry
    Tapped density0.8930 gm/l

    Known for manufacturing, supplying, wholesaling and exporting a wide range of optimum quality Industrial Chemical, Astrra Chemicals, based in Chennai, was established in the year 1992. Offered chemical range is inclusive of Construction Chemicals, Antioxidants Chemicals and Aromatic Chemicals. Available with us at cost-effective prices, these chemicals are extremely appreciated for their compositional accuracy and high effectiveness. In addition to this, our company is engaged in manufacturing, wholesaling and exporting best quality FRP Products - Raw Materials, De-ionized Water, Industrial Solvents Essential Oils Industrial Dyes and Industrial Pigments. Our offered products are extensively used in various industrial applications and are highly demanded by the customers.

    With the aid of our team of highly dedicated professionals, we have been able to meet the bulk order requirements of production within the stipulated time frame. Our professionals, who hold expertise in their area of operations, are trained on a regular basis through seminars and workshops in order to enhance and polish their technical as well as professionals skills. Highly motivated to attain maximum customer satisfaction, our company strictly follows customer centric approach and transparent business policies, since its inception. We export our products all over the world.
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    Brown Aluminum Oxide Grit 60

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    Approx. Rs 76 / KilogramGet Latest Price

    Product Details:
    Minimum Order Quantity100 Kilogram
    Usage/ApplicationIndustry
    ColorBlack
    BrandAstrra Chemicals
    Packaging TypePoly Bag
    Packaging Size25Kg
    FormPowder
    FormulaAl2O3

    We are an eminent organization, which is engaged in manufacturing, exporting and technical developers of highly pure Aluminium Oxide Brown ( Grit - 60 )

    Brown Aluminum Oxide. Brown Aluminum Oxide (BFA) is produced by the fusion of high-quality bauxite in an electric arc furnace at high temperatures. It is a clean, high-strength material that resists oxidation and corrosion, maintains chemical stability, and withstands extraordinarily high temperatures.

    High grade super fine qualityUniform compositionNon-toxic
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    Calcium Chloride

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    Calcium Chloride
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    Approx. Rs 29 / KilogramGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kilogram
    BrandAstrra Chemicals
    Chemical FormulaCaCl2
    FormPowder
    Grade StandardIndustrial Grade
    Purity90-95%
    Packaging Size50 Kg/bag

    Investigations have shown that a two per cent addition of calcium chloride has equal cure strength at 50F as plain concrete has at 70F. Regardless of the temperature or cement type, concrete mixes containing calcium chloride will always have a faster cure rate than plain concrete. The beneficial effects of calcium chloride will be even more pronounced at lower temperatures. The accelerated cure rate measured as final concrete set time can be reduced by two-thirds when two per cent calcium chloride is added - two hours compared to six hours for plain concrete. Calcium chloride can accelerate cement hydration reducing its set time.

    Features:

    • Purity
    • Accurate composition
    • Longer shelf life
    • Aggregate Concrete
    • Concrete Admixture
    • Cement admixture

     

     

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    FERRIC Oxide ( GRADE MIO )

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    FERRIC Oxide ( GRADE MIO )
    • FERRIC Oxide ( GRADE MIO )
    • FERRIC Oxide ( GRADE MIO )
    • FERRIC Oxide ( GRADE MIO )
    • FERRIC Oxide ( GRADE MIO )
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    Approx. Rs 38 / kgGet Latest Price

    Product Details:
    Minimum Order Quantity100 kg
    BrandASTRRA
    GradeMIO
    Chemical FormulaIRON OXIDE
    Usage/ApplicationPaints / Construction
    Specify Gravity04.90 - 05.30
    Hardness06.00 - 06.50
    Density04.00 - 04.50 (G/cm3)
    Oil Absorption18 (Ml/100gm)

    We are the leading manufactures, exporters,technical developers and suppliers of FERRIC OXIDE in Chennai, Tamil Nadu.

    Product Details:
    Ferric Oxide As Fe2o3 >90.00%
    Loi At 1000 Deg. C < 03.00%
    Chemical Name Hematite
    Chemical Formula Fe2o3
    Color Grey To Reddish Brown
    Seive Analysis Result (% Retained)
    150 Mesh Bss (100 Microns) Traces
    240 Mesh Bss (63 Microns) 05% - 15%


    Additional Information:

  • Production Capacity: 50000 Kgs
  • Delivery Time: 7 Days
  • Packaging Details: 50 Kgs HDPE Double Linned Bags
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    Iron Oxide Black

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    Approx. Rs 32 / KilogramGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kilogram
    BrandAstrra Chemicals
    Usage/ApplicationIndustrial
    Packaging Type25KG
    Packaging Size25 kg/bag
    Physical FormPowder
    ColorBlack

    Product Details:
    • Chemical formula‎: Fe3O4
    • Melting point‎: 1‎,597 °C
    • Boiling point‎: 2,623 °C
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    Liquid Sodium Silicate Neutral

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    Approx. Rs 36 / KgGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kg
    FormLiquid
    Packaging Size50 / 200 LITERS
    BrandAstrra Chemicals
    Packaging TypeCan,Bottle
    Chemical FormulaNazSiO3
    Specific Gravity40 +/- 1 Deg C

    Certificate Of Analysis:
    Technical SpeciicationNeutral GradeAlkaline Grade
    AppearanceHazy ColourlessViscous Translucent
    Total Alkalnity ( As Na2o) % By Mass, Min9. 00 +/- 1. 0015. 00 +/- 1. 00
    Soluble Silicate As Sio22933
    Toal Soluble Slicate % By Mass, Min38. 00 +/- 148
    Ratio Of Total Alkalinity ( As (Na2o ) To Total Soluble Silica (As Sio2: ( Na2o: Sio2 )01:30.2001:02.20
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    Magnesium Silicate (Grade A1)

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    Approx. Rs 13.5 / KgGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kg
    Usage/ApplicationINDUSTRIAL
    StatePowdered
    Packaging Size25 kg/bag
    Packaging TypeHDPE Bag
    ColorWhite
    BrandAstrra Chemicals

    We are an eminent organization, which is engaged in manufacturing, exporting and technical developers of highly pure Magnesium Silicate ( A1 )Used in high pH personal care compositions such as depilatory, waving and hair relaxer products. Fine off-white to tan-greenish powder, odorless, pH 9.5 (w/w 5%). Viscosity about 500cps (4% solution)
    Certificate of analysis:

    Typical analysis

    min.

    max.

    findings

    brightness

    90%

    95%

    94. 5%

    Sio2

    58%

    60. 5%

    60%

    Mgo

    30%

    32%

    30. 5%

    Al2o3

    1. 0%

    1. 2%

    1. 0%

    Cao

    0. 8%

    0. 9%

    0. 9%

    Loss on ignition @ 1050 deg. C

    5. 0%

    5. 3%

    5. 0%

    Specific gravity

    2. 5%

    2. 8%

    2. 7%

    Ph (of 10% solution)

    8. 0%

    9. 0%

    8. 5%

    Bulk density (loose in gm/cc)

    0. 80%

    1%

    0. 82%

    Moisture content

    0. 5%

    1%

    0. 6%

    Oil absorption (ml / 100gm )

    30%

    34%

    32%

    Retention on 400 msh

    0. 30%

    0. 40%

    0. 31%

    Retention on 500 msh

    0. 95%

    1%

    0. 98%

    Mesh size

    -

    -

    700 mesh

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    Magnesium Silicate Hydroxide Powder

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    Approx. Rs 38.00 / KilogramGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kilogram
    BrandAstrra Chemicals
    FunctionsBiocides
    Usage/ApplicationIndustrial
    GradeIndustrial Grade
    Grade StandardTechnical Grade
    MaterialPlastic
    Chemical NameMagnesium Silicate
    Packaging TypeHDPE Bag
    Physical StatePowder
    Packaging Size25-50 kg/bag

    With the firm commitment of delivering best quality construction chemicals, we are manufacturing, wholesaling and exporting best quality Magnesium Silicate Hydroxide Powder. Offered powder is processed by the professionals adhering to the set industry standards. We offer this magnesium silicate hydroxide powder is available with us in various packaging capacities.

    Features:

    • Purity
    • Accurate composition
    • Longer shelf life
    • Aggregate Concrete
    • Concrete Admixture


    Certificate Of Analysis:

    Typical Analysis

    Min.

    Max.

    Findings

    Brightness

    90%

    95%

    94.5%

    SiO2

    58%

    60.5%

    60%

    MgO

    30%

    32%

    30.5%

    Al2O3

    1.0%

    1.2%

    1.0%

    CaO

    0.8%

    0.9%

    0.9%

    Loss of Ignition @ 1050 DEG.C

    5.0%

    5.3%

    5.0%

    Specific Gravity

    2.5%

    2.8%

    2.7%

    pH ( of 10% solution)

    8.0%

    9.0%

    8.5%

    Bulk Density ( Loose in GM/CC)

    0.80%

    1%

    0.82%

    Moisture Content

    0.5%

    1%

    0.6%

    Oil Absorption (ml / 100 gm )

    30%

    34%

    32%

    Retention on 400 MSH

    0.30%

    0.40%

    0.31%

    Retention on 500 MSH

    0.95%

    1%

    0.98%

    Mesh Size

    -

    -

    700 Mesh


    Additional Information:

  • Production Capacity: 10000
  • Delivery Time: 7 to 10 Days
  • Packaging Details: Brand New HDPE Bags
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    Metakaolin Powder

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    Approx. Rs 55 / KgGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kg
    StatePowdered
    ColorWhite
    GradeCONCRETE
    Packaging TypeHDPE Bag
    Packaging Size25 kg/bag
    Usage/ApplicationCONSTRUCTION / CONCRETE APPLICATION
    FormPowder
    BrandAstrra Chemicals

    Metakaolin Powder

    We are the leading manufactures, exporters,technical developers and suppliers of  Metakaolin Powder in Chennai, Tamil Nadu

    With the help and support of our professionals, we have been able to manufacture, wholesale and export best quality Metakaolin Powder . It is calcinated by the professionals, under the controlled conditions for creating an amorphous aluminosilicate. When mixed with the concrete, it enhances the workability and strength of concrete. It also provides concrete a non sticky texture that makes finishing easier.

    Feature:
    • Purity
    • Longer shelf life
    • Correctly formulated
    • Accurate composition
    • Longer shelf life
    • Aggregate Concrete
    • Concrete Admixture
    • Cement admixture
       
    Uses:
    • High performance, high strength, and lightweight concrete
    • Precast and poured-mold concrete
    • Fibercement and ferrocement products
    • Glass fiber reinforced concrete
    • Countertops, art sculptures
    • Mortar and stucco

     

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    PVA Resins

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    PVA Resins
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    Approx. Rs 125 / KilogramGet Latest Price

    Product Details:
    Minimum Order Quantity10 Kilogram
    Packaging TypePolybag
    ColorWhite
    FormPowder
    GradeGH-17R
    Viscosity27.0-33.0
    Packaging Size25KG
    Saponification86.5-89.0

    We are the leading manufactures, exporters,technical developers and suppliers of PVA RESIN LIQUID in Chennai, Tamil Nadu.



    Additional Information:

  • Item Code: GH-17
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    Perlite Powder

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    Approx. Rs 64 / KilogramGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kilogram
    StatePowdered
    Packaging TypeHDPE BAGS
    Packaging Size10 KGS
    BrandAstrra Chemicals
    GradeSF II POWDER
    Shelf Life2 YEARS
    Usage/ApplicationIndustrial
    PH Value2-6
    ColorWhite
    FormGRANULAR

    Perlite has a very outstanding insulating characteristics and light weight, it is widely used as a loose-fill insulation in masonry construction. In this application, free-flowing perlite loose-fill masonry insulation is poureMasonry Tools Perlited into the cavities of concrete block where it completely fills all cores, crevices, mortar areas and ear holes. In addition to providing thermal insulation, perlite enhances fire ratings, reduces noise transmission and it is rot, vermin and termite resistant. Perlite is also ideal for insulating low temperature and cryogenic vessels. When perlite is used as an aggregate in concrete, a lightweight, fire resistant, insulating concrete is produced that is ideal for roof decks and other applications. Perlite can also be used as an aggregate in Portland cement and gypsum plasters for exterior applications and. for the fire protection of beams and columns. Other construction applications include under-floor insulation, chimney linings, paint texturing, gypsum boards, ceiling tiles and roof insulation boards.

    Additional Information:

  • Production Capacity: 10000 KGS
  • Delivery Time: 7 TO 10 DAYS
  • Packaging Details: BRAND NEW HDPE BADS
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    Pumice Powder

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    Pumice Powder
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    Approx. Rs 38 / KilogramGet Latest Price

    Product Details:
    Minimum Order Quantity100 Kilogram
    BrandAstrra Chemicals
    FormPowder
    Melting point2,072 Deg C
    Density3.95 g/cm3
    Moisture0.98%
    Silicon Di Oxide63.87%
    Aluminium Tri Oxide11.47%
    Calcium Oxide2.37%
    Magnesium Oxide1.00%
    Sodium Oxide6.81

    We are one of the leading manufacturers, suppliers and exporters of high quality Pumice Powder.
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    Red Iron Oxide

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    Approx. Rs 28 / KilogramGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kilogram
    Packaging TypeHDPE Bag
    Usage/ApplicationIndustrial
    Packaging Size25KG
    BrandAstrra Chemicals
    ColorRed
    Molar Mass159.69 g/mol

    Known for manufacturing, supplying, wholesaling and exporting a wide range of optimum quality Industrial Chemical, Astrra Chemicals, based in Chennai, was established in the year 1992. Offered chemical range is inclusive of Construction Chemicals, Antioxidants Chemicals and Aromatic Chemicals. Available with us at cost-effective prices, these chemicals are extremely appreciated for their compositional accuracy and high effectiveness. In addition to this, our company is engaged in manufacturing, wholesaling and exporting best quality FRP Products - Raw Materials, De-ionized Water, Industrial Solvents Essential Oils Industrial Dyes and Industrial Pigments. Our offered products are extensively used in various industrial applications and are highly demanded by the customers.

    With the aid of our team of highly dedicated professionals, we have been able to meet the bulk order requirements of production within the stipulated time frame. Our professionals, who hold expertise in their area of operations, are trained on a regular basis through seminars and workshops in order to enhance and polish their technical as well as professionals skills. Highly motivated to attain maximum customer satisfaction, our company strictly follows customer centric approach and transparent business policies, since its inception. We export our products all over the world.
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    Rice Husk Ash

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    Approx. Rs 21.00 / KgGet Latest Price

    Product Details:
    Minimum Order Quantity20 Kg
    BrandAstrra Chemicals
    Grade StandardTechnical Grade
    Physical StatePowder
    Packaging Size25 Kg/bag
    UsageIndustrial
    Packaging TypeHDPE Bag

    RHA is a good super-pozzolans. RHA can be used in a big way to make special concrete mixes There is a growing demand for fine amorphous silica in the production of special cement and concrete mixes ,high performance concrete ,high strength, low permeability concrete, for use in bridges, marine environments , nuclear power plants etc.

     

    Use Of Rice Husk Ash:

    • Adding RHA to the concrete mix even in low replacement will dramatically enhance the workability , strength and impermeability of concrete mixes, while making the concrete durable to chemical attacks , abrasion and reinforcement corrosion, increasing the compressive strength by 10% - 20 %


    For water proofing:

    • RHA has excellent water resistance ( impermeability ) properties and is used in waterproofing compounds to give amazing results.
    • It reduces the water penetration by as much as 60 % .


    For Better Concrete in Marine environment:

    • Adding RHA to concrete and paints helps to reduce the chloride ion penetration by as much as 50 % into the structure, thus improving life of the building.


    For Lower heat of Hydration:

    • Adding RHA to concrete lowers the heat of hydration by as much as 30 % and prevents formation of cracks during casting
    • RHA acts as a very good insulator
    • RHA is also used for insulation of molten metal in tundish and ladle in slab caster .
    • The temperature of molten metal in the ladle is around 1400 degrees centigrade and above
    • When this metal flows from ladle to tundish , the temperature drops to around 1250 degrees
    • This reduction in temperature leads to choking and causes breakdown in the slab caster.
    • When this RHA is spread as a coating over the molten metal in the tundish and in ladle, it acts as a very good insulator and the temperature is maintained and does not cool down quickly, hence reducing the breakdown time of the casting.
    • Rice Husk is burnt in controlled temperatures which is below 700 degrees centigrade
    • This ash generated is amorphous in nature. The transformation of this amorphous state to crystalline state takes place if the ash is exposed to high temperatures of above 850 degrees centigrade


    Green Concrete:

    • Green Concrete as the name suggests is eco friendly and saves the environment by using waste products generated by industries in various forms like rice husk ash, micro silicaetc. to make resource-saving concrete structures
    • Use of green concrete helps in saving energy,emissions, waste water Green concrete is very often also cheap to produce as it uses waste products directly as a partial substitute for cement,thus saving energy consumption in production of per unit of cement
    • Over and above all green concrete has greater strength and durability than the normal concrete.
    • High Performance Concrete: Also known as HPC, the name given to mixtures with high workability and very high early strengthsand long term durability 

     

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    Sepiolite Powder

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    Approx. Rs 16.50 / KilogramGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kilogram
    ColorWhite
    BrandAstrra Chemicals
    Packaging Size25 kg/bag
    FormPowder
    Magnesia as MgO0.6%
    Packaging TypeHDPE Bag

    We are engaged in manufacturing, supplying, wholesaling and exporting quality assured Sepiolite. It is extensively used for various applications. We are the leading sepiolite suppliers in the country. It is also uder for cat litter.

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    Silica Grits Pure

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    Approx. Rs 18.50 / KgGet Latest Price

    Product Details:
    Minimum Order Quantity50 Kg
    Grade36 GRIT
    StateCrystal
    Packaging TypeHDPE BAGS
    Usage/ApplicationINDUSTRIAL APPLICATION
    BrandAstrra Chemicals
    ColorWhite
    FormPowder
    Packaging Size25 kg/bag

    Mycosil Grit - 36 ( FRP Filler ) ( PURE SILICA GRIT ) We have emerged as a prominent manufacturer, supplier, wholesaler and exporter of high quality MYCOSIL GRIT – 36 (PURE SILICA GRIT ) highly suitable for FRP FIBREGLASS FILLER APPLICATION. Based in Chennai - Tamil Nadu - India. In the FRP / Composite Industry it is used as a :- 1) Filler 2) Extended Applicator

    Product Details:

    SiO2

    99. 5%

    Al2O3

    0. 08%

    TiO2

    0. 04%

    CaO

    0. 01%

    MgO

    0. 01%

    L.O.I.

    0. 28%

    Alkalies

    0. 29%

    Fe2O3

    0. 04%

     

     


    Additional Information:

  • Production Capacity: 10000 KGS
  • Delivery Time: 2 TO 3 DAYS
  • Packaging Details: 50 KGS HDPE BAGS
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    Super Plasticizer ( Waterproofing Chemical )

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    Approx. Rs 185 / KilogramGet Latest Price

    Product Details:
    Minimum Order Quantity5 Kilogram
    BrandAstrra Chemicals
    Form Of ChemicalsLiquid
    Usage/ApplicationLaboratory
    Packaging Size100-1000 ml
    CategoryWaterproofing Coating
    Packaging TypeBottle

     To produce high strength, high grade concrete by substantial reduction in water resulting in low permeability and high early strength. To produce high workability concrete requiring little or no vibration during placing.

     

    Advantages:

    • Improved workability - Easier, quicker placing and compaction.
    • Increased strength - Provides high early strength for precast concrete with the advantage of higher water reduction ability.
    • Improved quality - Denser, close textured concrete with reduced porosity and hence more durable.
    • Higher cohesion - Risk of segregation and bleeding minimised; thus aids pumping of concrete
    • Chloride free - Safe in prestressed concrete and with sulphate resisting cements and marine aggregates.
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    Vermiculite Powder ( Construction Grade )

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    Approx. Rs 28 / KgGet Latest Price

    Product Details:
    Minimum Order Quantity25 Kg
    StatePowdered
    GradeConstruction Grade
    Packaging TypeHDPE Bags
    Usage/ApplicationConstruction
    ColorGolden,Brown
    Size Grading0.5 to 1.5 mm
    TypePowder
    BrandAstrra Chemicals
    Packaging Size25-50 kg/bag

    Owing to our vast experience and knowledge of this domain, we have been able to manufacture, wholesale and export best quality Vermiculite Grade. This exfoliated vermiculite is commonly used in the agricultural, construction and horticultural sectors. It is processed by the experienced professionals adhering to the set industry standards.

    Features:
    • Accurate composition
    • Long shelf life
    • Provides strength to concrete

    Additional Information:

  • Production Capacity: 100 tonnes
  • Delivery Time: 7 days
  • Packaging Details: 25 Kgs HDPE Bags
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    White Silica ( Porous Silica Pure )

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    Approx. Rs 58 / KgGet Latest Price

    Product Details:
    Minimum Order Quantity100 Kg
    ColorWhite
    GradeAMK
    Usage/ApplicationIndustrial
    MaterialSilica
    BrandAstrra Chemicals
    Density3.95 g/cm3

    We are one of the leading manufacturers, suppliers and exporters of high quality White Silica.

    Additional Information:

  • Production Capacity: 50000 KGS
  • Delivery Time: 7 DAYS
  • Packaging Details: Brand New HDPE Bags with Inner Food Grade Linner.
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    Yellow Iron Oxide ( Natural )

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    Approx. Rs 28.00 / KgGet Latest Price

    Product Details:
    Minimum Order Quantity100 Kg
    ColorYellow Ochre
    Packaging Size50 kg
    Packaging Type50 Kgs Hdpe Bags
    FormPowder
    BrandAstrra
    Usage/ApplicationConstruction, Painting etc
    ApplicationArtists tend to prefer the more yellow oxide to the slightly browner natural ochre. ... Yellow Oxide

    Yellow Iron Oxide ( Natural )

    We are the leading manufactures, exporters,technical developers and suppliers Yellow Iron Oxide (Natural) in Chennai, Tamil Nadu.

    Iron oxide yellow is widely used in painting, scagliola and concrete due to its bright and pure color, good weather proof and high opacity, also can be used as colorant for ink, rubber, paper and so on.

    Artists tend to prefer the more yellow oxide to the slightly browner natural ochre. ... Yellow Oxide is used for a wider range of colors in landscape painting

    Additional Information:

  • Production Capacity: 10000 Kgs
  • Delivery Time: 7 to 10 Days
  • Packaging Details: Brand New Hdpe Bags
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    Chennai - 600006, Tamil Nadu, India
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