Name: Hydrophobic Fumed Silica HB-620
Brand: SINOENERGY GROUP
Availability: InStock

Hydrophobic Fumed Silica HB-620

Product Details:

Place of Origin:	China
Brand Name:	SINOENERGY GROUP

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Detailed Product Description

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sealants Hydrophobic Fumed Silica

Fumed Silica

HB- Hydrophobic Fumed Silica HB-620 0 620

Characteristic

FM-H-B620 is hydrophobic fumed silica which is produced by hydrophilic fumed silica with specific

surface area of 200m²/g after chemical post-treatment with HMDS (Hexamethyldisilazane).

Applications	Properties
● HTV silicone rubber,LSR	● Reinforcing filler for elastomer
● Coatings & Printing Ink	● High hydrophobicity and stable thixotropy
● Adhesives & sealants	● Anti-settling and anti-sagging agent in coatings and printing ink
● Powder Coatings	● Free flow aid and anti-caking aid for powders
	● Rheological control for adhesives & sealants

Physical and Chemical Data (Standard :GB/T 20020)

Test Item	Unit	Typical Value
Specific Surface Area(BET)	m²/g	170±30
Carbon Content (Based on material dried at 105℃ for 2 hours)	%	1.5～2.5
pH value in 4% dispersion	--	6.0～9.0
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℃)	%	≤ 4.0
Tamped Density (Based on material dried at 105℃ for 2 hours)	g/L	40～60
Silica Content (Based on ignited material)	%	≥ 99.8