SILASTIC 8257 Silicone Foam is a low hardness product, primarily developed as a dispensed ‘foamed-inplace’ gasket material for the automotive and industrial assembly & maintenance industries. When the A and B liquid components are thoroughly mixed in a 1:1 ratio by volume, the product will expand and cure to a foamed elastomer in approximately 10 minutes at room temperature. This foam has a fine cell structure and works as a seal or gasket where long service life, chemical resistance, good weatherability and low compression set are required. The hardness makes the product suitable for applications with low clamping pressure. Furthermore, the inherent properties of a silicone elastomer mean that the product can be used over a broad temperature range. The material expands without employing ozone depleting CFCs or other related blowing agents.
FEATURES & BENEFITS
•Low hardness (Shore 00) • User-friendly, easy to handle 1:1 mix ratio • Fast ambient temperature cure, no need for temporary storage of equipped parts • Does not contain chlorofluorocarbons (CFCs) • Low compression set (post-cured) which is retained at high service temperatures • Stable and flexible over a wide temperature range
APPLICATIONS
• SILASTIC™ 8257 Silicone Foam is designed to be dispensed and cured directly on parts to form an integrated compression gasket • Typical applications include automotive parts, housings for electric devices, exterior lighting, domestic appliance components and tile-printing-rollers.
| Original Document | Technical Datasheet(English) | |||
| Features | Good AdhesionFoamable | |||
| Physical | Value/Unit(Sign in to View) | Test Standard | Test Condition |
|---|---|---|---|
Density/Specific Gravity | *** g/cm³ | Internal | |
Density/Specific Gravity | *** g/cm³ | Internal | |
Density/Specific Gravity | ***~*** g/cm³ | Internal | cured |
Viscosity | ***~*** Pa-s | Internal | |
Viscosity | ***~*** Pa-s | Internal | |
| Mechanical | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Compression Set | *** % | Internal | 50% compression, 22 hours at 70°C non-post-cured |
Compression Set | *** % | Internal | 50% compression, 22 hours at 70°C post-cured |
| Hardness | Value/Unit(Sign in to View) | Test Standard | Test Condition |
Shore OO hardness | *** OO | Internal | cured |
The information presented on this datasheet was acquired by AjiEng.com from the producer of the material. AjiEng.com makes substantial efforts to assure the accuracy of this data. However, AjiEng.com assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.