non-metallic

From the outside, an elastomeric expansion joint looks to simply be made out of molded rubber.  Part of the reason expansion joints are used in such a wide variety of applications is that the interior construction of a joint can be custom-designed to handle your specific application - materials of construction will depend on size, temperature, application, media, pressure (S.T.A.M.P.).

Layers of Construction

Tube

• Synthetic or natural rubber forms seamless, leak-proof lining
• Extends fully through bore to outer flange edge
• Common materials include chlorobutyl, neoprene, natural rubber, EPDM, Viton* and Hypalon*