Silicon Dioxide Powder Hydrophobic Fumed Silica Iota Hb4139 CAS No. 7631-86-9 in Coating Rubber Adhesive

• CAS No.: 7631-86-9
• EINECS: 000-00-0
• Classification: Silicon Dioxide
• Grade Standard: Industrial Grade
• Kind: Acidic Oxide
• Quality: Eligible
• Model NO.: IOTA HB4139
• Certification: SGS
• Transport Package: 10kg/Drum, 200kg/Drum
• Trademark: IOTA
• Origin: China
• HS Code: 39100000
• Production Capacity: 500ton/Month

Product Description

Hydrophobic Fumed Silica IOTA HB4139

HB-4139 is hydrophobic fumed silica which is produced by HL-4200 after chemical post-treatment with PMDS (Polydimethylsiloxane).

Specification	IOTA  HB4139
Specific sunface area(BET), m2/g	110
pH value in 4% dispersion	5.5~7.5
Loss on drying(2 hours at 105ºC), %	≤1.5
Loss on ignition(2 hours at 1000ºC based on material dried for 2 hours at 105ºC), %	≤10.0
Sieve Residue(45μm), mg/kg	-
Silica Content(Based on ignited material), %	≥99.8
Tamped Density(Based on material dried at 105ºC for 2 hours), g/dm²	40~60
Carbon Content (Based on material dried at 105ºC for 2 hours), %	4.5~6.5

 

                            Applications 
                            Silicone rubber                      
                            Coatings and printing ink
                            Adhesives and Sealants       
                            Greases and cable gel
                            Unsaturated resin                
                            Powders

Properties
Good thickening and thixotropy property
Good anti-sagging properties and excellent stability in epoxy resin
Excellent reinforcing properties in silicone rubber especially at high filler loading levels and no crepe hardening on aging
Good transparency performance
Free-flow property for water-proof material and powders

Package
White kraft paper bag, 10KG/Bag