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Fumed Silica IOTA HB4151


Product description

HB4151 is hydrophobic fumed silica which is produced by HL4150 after chemical post-treatment with DDS(Dimethyldichlorosilane).


Specification

IOTA HB4151

Specific sunface area(BET), /g

115±15

pH value in 4% dispersion

3.74.5

Loss on drying(2 hours at 105), %

≤0.7

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

≤2.5

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), %

0.61.2

 

Applications 

RTV silicone rubber,especially RTV-T

Adhesives & Sealants

Coatings & Printing ink 

Powder Coating

 

Properties

Thixotropy and reinforcement in RTV silicone sealants, the hydrophobic feature gives RTV silicone sealants a long shelf-life

Rheology control in adhesives

Anti-settling, anti-sagging and thixotropy control

Free flow aid and anti-caking aid for powders

 

Package

White kraft paper bag, 10KG/Bag



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