Chemlok® 3S-902 LSR Adhesion Additive
Product Information
Chemlok® 3S-902 additive is an adhesion promoting additive that, when mixed with liquid silicone rubber (LSR), imparts self-bonding properties to standard LSR, providing standard LSR the ability to bond to many types of substrates, including plastics and clean metals. Substrates tested include PBT, PA6, PA66, aluminum, steel and zinc.
Shelf Life
Shelf life is one year from date of manufacture when stored at temperatures less than 27°C (80°F) in original, unopened container.
Chemlok 3S-902 additive is moisture sensitive. Minimize exposure of the additive to moisture during application and storage.
Features and Benefits
Versatile – works on a wide range of LSR grades and durometers from all major manufacturers.
Easy to Use – injects directly into LSR feed system using standard dosing or pumping equipment, similar to feeding color concentrates or other additives.
Durable – produces robust, durable bonds that can withstand harsh environments.
Environmentally Preferred – eliminates the VOCs associated with traditional primer or adhesive application.
Medical Use – formula passes ISO 10993-5** cytotoxicity and ISO 10993-10** skin irritation testing.
**It is the responsibility of the user to determine that the final product complies with the ISO 10993 requirement.
Typical Properties*
| Appearance | Clear to Light Amber Liquid |
| Viscosity, cps @ 25°C (77°F) | 25 |
| Density, g/cm3 (lb/gal) | 1.07 (8.93) |
| Flash Point, °C (°F) | >93 (>200) |
| Refractive Index | 1.46 |
*Data based on pre-production samples and should not be used for specification purposes.
Literature
| Download | Type | Name | |
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Technical Data Sheet | Chemlok 3S-902 LSR Adhesion Additive | |
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White Paper | Chemlok 3S-902 Liquid Silicone Rubber Adhesion Additive | |
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Application Guide | Chemlok 3Stream LSR Adhesion Additive Application Guide |