Epoxies, Etc., a leading manufacturer of adhesive products, has released a new plant-based potting, casting and encapsulating compound for electronic applications with low toxicity requirements. Called 20-2121 Polyurethane, this environmentally-friendly alternative to conventional potting compounds is made from natural oil polyol instead of fossil fuel feedstocks. As a low toxicity product, 20-2121 meets FDA food contact requirements and contains no TDI, MbOCA or Mercury. Other properties include:
- Little shrinkage or exotherm.
- Alleviation of mechanical and thermal stresses on sensitive electrical components.
- Limited stress on electronics with good elastomeric properties.
The 20–2121 compound stacks up well against traditional urethane potting compounds with a tensile strength of 2,000 psi and a tear strength of 119 PLI. It has a mixed viscosity of 2,000 cps at 25°C and a gel time of 20 minutes at 60°C.
- environmentally-friendly
- tensile strength of 2,000 psi
- tear strength of 119 PLI.
