CAS 7631-86-9
Chemical name Silica
Appearance White powder
PolyAdds Fumed silica NEWOSIL HL300 is hydrophilic fumed silica.
Properties Unit Typical Value Testing Standard
Specific Surface Area(BET): 300±20 m2/g
pH value in 4% dispersion: 3.7~4.5
Loss on drying(2 hours at 105℃) ≤2.0%
Loss on ignition(2 hours at 1000℃ based on material dried for 2 hours at 105℃) ≤2.5%
Sieve Residue(45μm) ≤250mg/kg
Silica Content(Based on ignited material) ≥99.8%
Tamped Density(Based on material dried at 105℃ for 2 hours): 40~60 g/dm³
1.Coatings & Paintings → Improve Thixotropic & Anti-settling properties & Increased scratch resistance
2.Adhesives & Sealants → adjustment of rheology during processing & thickening effect
3.HTV&RTV Silicon Rubbers → reinforcement of silicone elastomers & thickening effect
4.Thin Film & UPR → reinforce physicle strength & tensile strength
5.Printing Ink → anti-settling & thickenging
6.Fertilizer & Pesticide → thickening & anti-settling for liquid system product ;
→ anti-caking & free flow aid for powder products
7.Cosmetics → Improve thickening & anti-caking & anti-settling performance
Packaging
Paper Box Packaging, 10kg/Bag
Sealed storage
Store in a low temperature, ventilated, and dry place.
Storage period
At least two years under normal storage conditions.