Product description
HL7300 is hydrophilic fumed silica with a specific surface area around 300㎡ /g， mainly applied in coatings & paintings, silicone rubber and Other elastomers, film & UPR, adhesives and sealants.
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Specification
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IOTA HL7300
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Specific sunface area(BET), ㎡/g
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300±25
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pH value in 4% dispersion
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3.7～4.5
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Loss on drying(2 hours at 105℃), %
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≤2.0
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Loss on ignition(2 hours at 1000℃ based on material dried for 2 hours at 105℃), %
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≤2.5
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Sieve Residue(45μm), mg/kg
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≤250
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Silica Content(Based on ignited material), %
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≥99.8
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Tamped Density(Based on material dried at 105℃ for 2 hours), g/L
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40～60
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Applications
Coatings & Paintings
Silicone rubber and Other elastomers
Film & UPR
Adhesives and Sealants
Printing ink
Properties
Reinforcing filler in elastomers
Anti-settling, thickening and anti-sagging agent
Rheology and thixotropy control in liquid systems
Free flow aid and anti-caking aid for powders
High tear resistance
Excellent transparency in unsaturated polyester resins
Package
White kraft paper bag, 10KG/Bag
