Types Of Caps

Plastic caps and plastic plugs are made from different materials to suit your needs. The main materials that Harman Corporation uses are silicone, rubber and vinyl. Let’s break down their different properties.

Silicone Caps

Silicone caps, with their soft flexibility and high heat tolerance (up to 600 degrees fahrenheit), are perfect high-temperature masks that are used in painting, powder coating, anodizing, E-coating, and electroplating

EPDM Rubber Caps

Like silicone caps, rubber caps are resistant to high-heat (up to 350 F / 177 C), making them useful in anodizing and painting. Rubber caps provide a very tight seal and the are also flexible, like silicone caps. Rubber caps are especially great as noise inhibitors.

Vinyl Caps

While vinyl caps do not offer the same resistance to high temperature as silicone and rubber caps, they provide an airtight seal for added insulation and cushion.

Looking for a custom-designed plastic cap? Learn more about our Custom Dip Molding services. To buy any of our plastic caps, click here.