Double-jacketed gaskets are widely used in chemical industries, and double jacketed gaksets are another combination of filler material and metallic materials. In this application, a tube with ends that resemble a "C" is made of the metal with an additional piece made to fit inside of the "C" making the tube thickest at the meeting points. The filler of Double-jacketed gaskets is pumped between the shell and piece. When in use the compressed Double-jacketed gaskets has a larger amount of metal at the two tips where contact is made (due to the shell/piece interaction) and these two places bear the burden of sealing the process. Since all that is needed is a shell and piece, these Double-jacketed gaskets can be made from almost any material that can be made into a sheet and a filler can then be inserted. This is an effective option for most applications.