Hydrophobic Fumed Silica Iota Hb4620

• CAS No.: 7631-86-9
• EINECS: 000-00-0
• Classification: Silicon Dioxide
• Grade Standard: Industrial Grade
• Kind: Acidic Oxide
• Quality: Eligible
• Model NO.: IOTA HB4620
• Certification: SGS
• Preparation Method: Hydrophobic Fumed Silica
• Transport Package: 10kg/Bag, 200kg/Bag
• Specification: white bag
• Trademark: IOTA
• Origin: China
• HS Code: 39100000
• Production Capacity: 500ton/Month

Product Description

Hydrophobic Fumed Silica IOTA HB4620
Alias:Hydrophobic Fumed Silica used in Unsaturated Polyester Resins
HB4620 is hydrophobic fumed silica which is produced by HL4200 after chemical post-treatment with HMDS (Hexamethyldisilazane).

Specification	IOTA HB4620
Specific sunface area(BET), m2/g	170
pH value in 4% dispersion	5.5~8.0
Loss on drying(2 hours at 105ºC), %	≤0.5
Loss on ignition(2 hours at 1000ºC based on material dried for 2 hours at 105ºC), %	≤4.0
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), %	1.5~2.5

 

                           Applications 
                           HTV silicone rubber & LSR
                           Coatings & printing ink
                           Adhesives & Sealants
                           Powder Coatings
                           Package
                           White kraft paper bag, 10KG/Bag

Properties
Reinforcing filler for elastomer
High hydrophobicity and stable thixotropy  
Anti-settling, anti-sagging agent in coatings and printing ink  
Free flow aid and anti-caking aid for powders
Rheological control for adhesives and sealants