AEROSIL® R 208
- CAS Number
- 67762-90-7
- Chemical Family
- Silica
AEROSIL® R 208 is a fumed silica aftertreated with polydimethylsiloxane with excellent thickening properties.
Properties
- Physical Form
- Powder
- Solid
Identification
- Chemical Name
Hydrated Silica, Silane, trimethoxyoctyl-, hydrolysis products with silica, Silica gel, pptd., cryst.-free; Hydrated Silica; Silane trimethoxyoctyl- hydrolysis products with silica; Silica gel pptd. cryst.-free
Product families
- Rheology Modifiers & Stabilizers
- Thixotropes
- Rheology Modifiers
Other characteristics
- Brand
- AEROSIL
- Functions
- Thixotrope
- Note
- * ex plant
- Shelf LIfe
- 2 years
- Applications
Thickening and thixotropy control of adhesives and sealants for fiberoptic cables; Thickening and thixotropy control of epoxy and vinylester resins; Booster silica for defoamer formulations; Anti-sedimentation aid for fillers, such as chalk or quartz powder; Additive for formulation of anti-corrosion systems; Improves flowability of powders; Enables achieving of a high tribo-charge
- Technology
- CASE Ingredients
- Composite Materials
- Plastics
- Packaging Type
- Bags
- Product Features
The silicone oil treatment guarantees the very marked hydrophobia of the product; Very efficient effect in the thickening and thixotropy of complex polar liquids, such as those based on epoxy, polyurethane, or vinylester resins; With silicone oil treatment, AEROSIL® R 208 offers a tailor-made chemical surface treatment.; The high hydrophobicity of PDMS-treated, small particle AEROSIL® grades makes them particularly effective for achieving a high tribo-charge.; At the same time, PDMS-treated, small particle AEROSIL® grades maintain good flowability.
- Material Features
- Controlled Rheology
- Storage Condition
Recommend storage of the product in closed containers under dry conditions as well as protection from volatile substances. AEROSIL® R 208 should be used within 2 years after production.
- Chemical Inventories
- DSL (Canada)
- EEC/EU
- EINECS (EU)
- TSCA (USA)
- Country Availability
- Canada
- Mexico
- USA
- Packaging Information
AEROSIL® R 208 is supplied in multiple layer 10 kg bags.
- Cable Gel Applications
Use of AEROSIL® fumed silica for cable gels gives excellent performance when it comes to shear-thinning, providing quick recovery and the gel does not require heat to be applied. AEROSIL® fumed silica improves properties of oil-based filling compounds for wire and cables to protect fibers (e. g. optical fibers) as it:; Supports to isolate sensitive optical fi bers from external forces; Protects the fi bers from moisture; Provides thickening to help the gel to stay where it is placed; Helps to form a seal to keep out contaminants like dust, dirt and water; Is non-conductive / does not negatively infl uence di-electrical properties
- Certifications and Compliance
- RoHS Compliant
- Composite Materials Functions
- Thixotrope
Technical data
Table 1 of 1
2 rows| Characteristic | Value | Unit |
|---|---|---|
| Specific Surface Area (BET) | 80 - 140 | m²/g |
| Carbon Content (based on ignited material) | 4.5 - 6.5 | % |
