The metal clad is the most basic and cost effective type of semi-metallic gasket, comprising of a soft filler material, which is then totally encapsulated within a metal jacket. The metal clad is commonly used in Heat Exchangers and can be manufactured with a range of different metals and high temperature fillers.
The most basic type of semi-metallic gasket has a compressible insert enclosed within metallic jacket. The insert material forces the metal to deform to suit the flange surface and affect a seal.
Metal jacketed gaskets are commonly used in heat exchangers though are often replaced by kammprofile style gaskets. Metal jacketed gaskets can be manufactured with a number of metals and high temperature fillers.