When thinking about protecting sensitive electronics from moisture and shock, a silicone potting compound or encapsulant is usually a good starting place. If you are working with optics or LEDs, then you will want a clear material with good optical transmission. Opti-tec 7020 has been the potting compound of choice for our customers who need non-yellowing transparency for their products, combined with excellent environmental resistance.

We have just updated our technical data on this product with more optical transmission information.

Opti-tec 7020 Silicone Potting Compound Transmission Curve