Heat resistant strength resistant silicone rubber FKM seal ring

A viton seal ring needs a compound and section suited to both the operating temperature and the mechanical contact in its joint. Silicone alternatives should be assessed for their own intended conditions rather than substituted by shape alone. The surrounding groove must support the selected ring as pressure, movement, or heating changes the way it is loaded.

Define the section dimensions, installed diameter, and available gap. Check the surfaces along the assembly route so the rubber can reach its seat without cuts or excessive stretch. Include the actual contacting substances when selecting the formulation.

Install without twist and close the joint evenly. Assess sealing on the completed arrangement through the relevant operating cycle. During maintenance, inspect for local extrusion, persistent deformation, or damage matching a sharp hardware feature. A stronger sounding material description is not a remedy for an unsupported gap; correct the geometry or loading condition where needed before relying on another ring in the same joint.

Material options

FKM / Silicone. Custom formulation and color for the intended contact conditions.

Hardness selection

Rubber: 30–90 Shore A. Silicone: 20–80 Shore A. The surrounding groove must support the selected ring as pressure, movement, or heating changes the way it is loaded.

Custom dimensions

Define the section dimensions, installed diameter, and available gap.

Fit & assembly

Check the surfaces along the assembly route so the rubber can reach its seat without cuts or excessive stretch.

Use & inspection

During maintenance, inspect for local extrusion, persistent deformation, or damage matching a sharp hardware feature.

Photos illustrate structure or material only. A viton seal ring needs a compound and section suited to both the operating temperature and the mechanical contact in its joint. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.