Custom rubber gaskets flat exhaust gasket

Custom rubber gaskets can be cut or molded to match a flat sealing location. The outline, openings and thickness should be based on the mating joint, not only the shape of a removed gasket that may have deformed in service. The selected rubber must also suit the medium and thermal conditions at that specific location.

For an exhaust-related application, establish the actual joint exposure before choosing an elastomer construction. The application label does not establish direct hot-gas suitability. Match the supporting faces and keep the gasket within their intended contact area, including around corners and fastening points. Fit it without stretching to align holes, then assess the completed joint under its operating conditions. During disassembly, inspect for portions pushed outside the support, hardening or a cut from a rough face. Clear old material before installing the replacement so it does not sit on an uneven layer. If the same area fails repeatedly, review the joint support and exposure rather than simply increasing gasket thickness.

Material options

Rubber. Custom formulation and color for the intended contact conditions.

Hardness selection

Rubber: 30–90 Shore A. Fit it without stretching to align holes, then assess the completed joint under its operating conditions.

Custom dimensions

If the same area fails repeatedly, review the joint support and exposure rather than simply increasing gasket thickness.

Fit & assembly

Match the supporting faces and keep the gasket within their intended contact area, including around corners and fastening points.

Use & inspection

The outline, openings and thickness should be based on the mating joint, not only the shape of a removed gasket that may have deformed in service.

Photos illustrate structure or material only. The selected rubber must also suit the medium and thermal conditions at that specific location. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.