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AL2CHEM SPECIALTIES AL FS-900
- CAS Number
- 68611-44-9
- EC Number
- 271-893-4
- Chemical Name
- Silica Dimethyl Silylate
- Chemical Family
- Silica
AL FS-900 is hydrophilic fumed silica surface treated with dimethyldichlorosilane (DMDS) to make it hydrophobic. Fumed silica’s unique manufacturing process produces a very high purity type of silica with nano size primary particles, a fluffy white powder that is an amorphous and colloidal form of silica. These characteristics impart a wide range of benefits to formulations from thickening and reinforcement to free flow and anti-settling. In addition the treatment imparts added water repellency, corrosion resistance, as well as thickening of complex liquid systems.
Properties
- Physical Form
- Powder
- Solid
Identification
- CASE Ingredients Features
- Anti-SettlingCorrosion ResistanceExcellent FlowImproved RheologyWater Resistance
- CASE Ingredients Functions
- Rheology ModifierThickenerWater Repellent
Product families
Applications
Adhesives & Sealants — Building & Construction
- Sealants & Caulks
Building & Construction — Building Materials
- Sealants & Caulks
Industrial — Chemical & Industrial Manufacturing
- Resin Manufacturing
Product Families
CASE Ingredients — Additives
- Rheology Modifiers & Stabilizers
- Surface Modifiers
Composite Materials — Additives
- Fillers & Extenders
- Thixotropes
Other characteristics
- Functions
Filler, Rheology Modifier, Thickener, Water Repellent
- Labeling Claims
- High Purity
- Compatible Polymers & Resins
- Unsaturated Polyester (UPE)
- Markets
- Adhesives & Sealants
- Building & Construction
- Industrial
- Availability
Available in 10 kg bags (10 lb and bulk bags upon special request)
- Coating Type
- Gelcoat
- Technology
- CASE Ingredients
- Composite Materials
- Packaging Type
- Bags
- Super Sacks
- Material Features
- Amorphous
- Corrosion Resistant
- Free Flowing
- High Purity
- Hydrophobic
- Water Resistant
- Applicable Processes
- Polyester Manufacturing
- Compatible Polymers and Resins
- Unsaturated Polyester (UPE)
- Composite Materials Functions
- Filler
- Thickener
Technical data
Table 1 of 1
8 rows| Characteristic | Value | Unit |
|---|---|---|
| Average Primary Particle Size | 16 | nm |
| BET Specific Surface Area | 110+/-20 | m²/g |
| Bulk Density | 40 - 60 | g/l |
| Carbon Content | 0.6 - 1.2 | wt% |
| Heating Loss (at 105°C for 2 hr) | max. 1.5 | % |
| Loss on Ignition (at 1000°C for 2 hr) | max. 0.01 | % |
| pH Value (5% in water) | 4.0 - 5.0 | — |
| Silica Content | min. 99.8 | % |
