FUMED SILICA IOTA HB7139

Product description

HB-7139 is hydrophobic fumed silica which is produced by HL7200 after chemical post-treatment with PMDS (Polydimethylsiloxane).

Specification	IOTA  HB7139
Specific sunface area(BET), ㎡/g	200±20
pH value in 4% dispersion	5.5～7.5
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
Silica Content(Based on ignited material), %	≥99.8
Tamped Density(Based on material dried at 105℃ for 2 hours), g/L	40～60
Carbon Content (Based on material dried at 105℃ for 2 hours), %	4.5～6.5

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