R669 Fumed Silica

• CAS No.: 112 945-52-5
• Formula: Sio2
• Certification: MSDS ,SGS
• Environmental Protection: Yes
• Function: Silica
• Appearance: Powder
• Model NO.: R669 Fumed silica
• Color: White
• Transport Package: 10kgs Paper Bag
• Specification: R649
• Trademark: Lerona
• Origin: China
• HS Code: 28112290
• Production Capacity: 30 Ton/Month

Product Description

Fumed silica, Hydrophobic
type:R669

same as AEROSIL R104
Hydrophilic fumed silica by  cyclotetra siloxane(D4) treatment
Specific surface area(BET): 150+-25 m2/g       PH:4.0 min 
SiO2:99.8% min   Average primary particle size:12 nm   
Bulk density:50 g/l       Carbon content:1.0-2.0%
Hydrophobicity,  wetting value: 40-50%
Packing: 10 kgs Three-layer kraft paper bag, on one pallet
The capacity of one 20GP: 2.2 tons(88 bags)
Usage:Silicone Rubber, Sealants, Themoplastics, Copier Toners

_{Silica Properties
A:Hydrophobic product for thickening and reinforcement of RTV-1K one-component mailer silicone sealant
B:Improve the storage performance of silicone sealants
C:For paint anti-settling to improve pigment stabilization and enhance anti-settling effect
D:Hydrophobicity and water repellency of liquid systems
E:Improve hydrophobicity and rheology of offset printing inks}