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Fumed Silica IOTA HB4612

  

Product description

HB4612 is hydrophobic fumed silica which produced by HL4150 after chemical post-treatment with HMDS (Hexamethyldisilazane).


Specification

IOTA HB4612

Specific sunface area(BET), /g

115

pH value in 4% dispersion

5.57.5

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), %

≤2.0

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), %

0.71.3

 

Applications 

RTV silicone sealants,especially electronic potting and Liquid glue

Adhesives and Sealants

Coatings & Printing ink                    

Powder Coatings

 

Properties

Thixotropy and reinforcement in RTV silicone sealants, the hydrophobic

feature gives RTV silicone sealants a long shelf-life

Rheological control of RTV silicone rubber

Anti-settling,anti-sagging and thixotropy agent

Free flow aid and anti-caking aid for powders

 

Package

White kraft paper bag, 10KG/Bag



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