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Product Name

HB-620

HB-620 is hydrophobic fumed silica which is produced by HL-200 after chemical post-treatment with HMDS (Hexamethyldisilazane).
Affiliate classification
Product description
Characteristics

HB-620 is hydrophobic fumed silica which is produced by HL-200 after chemical post-treatment with HMDS (Hexamethyldisilazane). 

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

Properties

Unit

Typical Value

Testing Method

pH value in 4% dispersion

(H2O:Ethanol=1:1)

 

5.5~8.0

GB/T 20020

Loss on drying(2 hours at 105℃)

%

≤0.5

GB/T 20020

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

%

≤4.0

GB/T 20020

Silica Content(Based on ignited material)

%

≥99.8

GB/T 20020

Tamped Density(Based on material dried at 105℃ for 2 hours)

g/dm³

40~60

GB/T 20020

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

%

1.5~2.5

GB/T 20020

 

 

Corresponding parameter set not found, please add it in property template of background
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暂未实现,敬请期待
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