HC-300 is hydrophilic fumed silica with a specific surface area of 300 m2/g
Properties:
Rheology & Thixotropy control Reinforcement
Free flow aid and anti-caking aid for powders Antisagging & Antisettling
Thickening High tear resistance
Excellent transparency in unsaturated polyester resins
Characteristic physico-chemical data
|
Properties
|
Unit
|
Typical Value
|
|
Specific Surface Area（BET）
|
m2/g
|
300±25
|
|
pH value in 4% dispersion
|
|
3.8～4.4
|
|
Loss on drying(2 hours at 105℃)
|
%
|
≤2.0
|
|
Sieve Residue(45μm)
|
mg/kg
|
≤250
|
|
Silica Content(Based on ignited material)
|
%
|
≥99.8
|
|
Tamped Density(Based on material dried at 105℃ for 2 hours)
|
g/dm³
|
40～60
|
Application:
Coating and Painting Adhesives and Sealants Film & UPR
Printing Ink Silicone rubber and other sealants etc.
Packing and storage
lPackaged in multiple layer Kraft paper, 10kg per bag
lStored in aeration-drying storage areas for protecting the material from volatile substance.
lShould be used within 2 years after production.
