Molded soft silicone rubber gaskets/neoprene rubber seal

At a sealing joint, the material choice and receiving profile need to agree. Silicone rubber gaskets and neoprene alternatives can be formed into similar shapes, but their suitability depends on the actual service. A change of compound should not be treated as an appearance-only substitution.

Define the contact faces, internal opening and thickness along with the medium and operating temperature. The gasket should receive support across its working area without being stretched to reach a locating point. Softness alone does not establish the required seal, and excessive clamping can distort the intended profile.

Fit the chosen configuration onto clean mating surfaces and inspect for folds before closure. Evaluate the complete joint for its duty rather than assuming a rating from the rubber family. When dismantling, check whether damage follows a burr, gap or local high spot. Correct that receiving condition before fitting another gasket so a new material is not expected to compensate for the same mechanical mismatch.

Material options

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

Hardness selection

Rubber: 30–90 Shore A. Silicone: 20–80 Shore A. The gasket should receive support across its working area without being stretched to reach a locating point.

Custom dimensions

Define the contact faces, internal opening and thickness along with the medium and operating temperature.

Fit & assembly

Fit the chosen configuration onto clean mating surfaces and inspect for folds before closure.

Use & inspection

Silicone rubber gaskets and neoprene alternatives can be formed into similar shapes, but their suitability depends on the actual service.

Photos illustrate structure or material only. At a sealing joint, the material choice and receiving profile need to agree. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.