Cheap custom molded anti chemical rubber o-ring flat washer

A rubber o-ring flat washer configuration should have its section defined before the material is selected. A round section ring and a flat washer contact the joint differently, even if their overall diameters are similar. The receiving groove or sealing land determines the appropriate geometry.

For chemical exposure, select the compound using the actual substance, concentration, temperature and contact duration. Custom materials, dimensions, hardness and colors are available. Evaluate the chosen formulation in the intended compressed condition rather than assuming that a general chemical resistance description covers every fluid.

Inspect the joint after representative exposure for changes in fit, surface condition or compression. Swelling can reduce available groove space, while hardening may alter contact with the mating surfaces. Keep the seat clean during assembly and avoid twisting a ring or folding a flat edge. If the medium or cleaning process changes, review material suitability and installed geometry together. A dimensionally identical replacement is not necessarily appropriate when its formulation differs from the developed seal.

Material options

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

Hardness selection

Rubber: 30–90 Shore A. Evaluate the chosen formulation in the intended compressed condition rather than assuming that a general chemical resistance description covers every fluid.

Custom dimensions

A round section ring and a flat washer contact the joint differently, even if their overall diameters are similar.

Fit & assembly

Keep the seat clean during assembly and avoid twisting a ring or folding a flat edge.

Use & inspection

A dimensionally identical replacement is not necessarily appropriate when its formulation differs from the developed seal.

Photos illustrate structure or material only. Swelling can reduce available groove space, while hardening may alter contact with the mating surfaces. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.