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Product Name

HL-300

HL-300 is hydrophilic fumed silica with a specific surface area around 300㎡ /g, mainly applied in coatings & paintings, silicone rubber and Other elastomers, film & UPR, adhesives and sealants.
Affiliate classification
Product description
Characteristics
HL-300 is hydrophilic fumed silica with a specific surface area around 300㎡ /g. 
Applications 
Coatings & Paintings          
Silicone rubber and Other elastomers 
Film & UPR
Adhesives and Sealants           
Printing ink
Properties
Reinforcing filler in elastomers          
Anti-settling, thickening and anti-sagging agent      
Rheology and thixotropy control in liquid systems 
Free flow aid and anti-caking aid for powders
High tear resistance
Excellent transparency in unsaturated polyester resins
Physical & Chemical Data
 

Properties

Unit

Typical Value

Testing Method

Specific Surface Area(BET)

m2/g

300±25

GB/T 20020

pH value in 4% dispersion

 

3.7~4.5

GB/T 20020

Loss on drying(2 hours at 105℃)

%

2.0

GB/T 20020

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

%

2.5

GB/T 20020

Sieve Residue(45μm)

mg/kg

≤250

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

 

 

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