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Fumed silica Fusil 620 data sheet
Product Information
Fusil ®620
Hydrophobic Fumed Silica
Fusil®620 is hydrophobic fumed silica after treated with HMDS (hexamethyldisalazane) based on a hydrophilic fumed silica with a specific surface area of 200 m2/g . It’s a kind of high purity white colloidal powder.
Characteristic physico-chemical data
|
Test Item |
Standard |
Standardization |
|
Specific Surface Area BET（m2/g） |
170±20 |
GB/T 10722 |
|
pH Value in 4% dispersion |
5.5-8.0 |
GB/T 1717 |
|
Loss on Drying 2h@ 105℃（%） |
≤0.5 |
GB/T 5211.3 |
|
Loss on Ignition 2h@ 1000℃（%） |
≤4.0 |
GB/T 20020 |
|
SiO2 Content (based on ignitedmaterial)(%) |
≥99.8 |
GB/T 20020 |
|
Tamped density (based on material dried for 2h@ 105℃) (g/l) |
40-60 |
GB/T 5211.4 |
|
Carbon content (based on material dried for 2h@ 105℃) (%) |
1.5-2.5 |
GB/T 20020 |
◆ Fumed silica Fusil 620 data sheet
Applications
l HTV silicone rubber &LSR
l Sealants and SiliconeAdhesive
l Coatings,inks
l Powdercoatings
Packing and storage
l Packaged in multiple layer Kraft paper, 10kg perbag
l Stored in aeration-drying storage areas for protecting the material from volatilesubstance.
l Should be used within 2 years afterproduction.
Properties
l Reinforcement of HTV silicone rubber, anti-caking
l High hydrophobicity and stable thixotrophy, using in coatings and inks can prevent from anti-caking, anti- sagging,anti-thixotrophy.
l Good performance of hydrophobic feature and rheology in adhensives andsealants
l Improve the free flow of powder coatings and anti- caking
Safety & Handling
Information concerning the safety of this product is listed in the corresponding Safety Data Sheet, which will be sent with the first delivery or upon updating. Such information is also available from Fuchang Chemical, Product Safety Department, E-MAIL info@fuchangchem.com or can check from our homepage www.fuchangchem.com. We recommend to read carefully the safety data sheet prior to the use of ourproduct.
Transportation
l 20’GP: 1.8 Mt, 10 pallets,180KG/pallet.
l 40’HQ: 4.0Mt, 20 pallets, 200KG/pallet.
Service
Email: info@fuchangchem.com
Website: www.fuchangchem.com
