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Fumed Silica IOTA HB4139


Product description

HB-4139 is hydrophobic fumed silica which is produced by HL-4200 after chemical post-treatment with PMDS (Polydimethylsiloxane).


Specification

IOTA  HB4139

Specific sunface area(BET), /g

110

pH value in 4% dispersion

5.57.5

Loss on drying(2 hours at 105), %

≤1.5

Loss on ignition(2 hours at 1000 based on material dried for 2 hours at 105), %

≤10.0

Sieve Residue(45μm), mg/kg

-

Silica Content(Based on ignited material), %

≥99.8

Tamped Density(Based on material dried at 105 for 2 hours), g/dm²

4060

Carbon Content (Based on material dried at 105 for 2 hours), %

4.56.5

 

Applications 

Silicone rubber                      

Coatings and printing ink

Adhesives and Sealants       

Greases and cable gel

Unsaturated resin                

Powders

 

Properties

Good thickening and thixotropy property

Good anti-sagging properties and excellent stability in epoxy resin

Excellent reinforcing properties in silicone rubber especially at high filler loading levels and no crepe hardening on aging

Good transparency performance

Free-flow property for water-proof material and powders

 

Package

White kraft paper bag, 10KG/Bag



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