Special shape silicone rubber parts/safe silicone hollow balls

Silicone hollow balls have an internal space that makes wall geometry central to their behavior. The outside diameter alone does not describe how the part deforms when handled or loaded. Define the wall sections, any openings, and the intended use together so the finished form can be assessed under the conditions it will actually encounter.

Custom shape and color can follow the product design, but local transitions should not create unintended weak points. Where the hollow form is incorporated into a toy or contact product, assess the completed construction and chosen formulation for the intended users and contact conditions. The material name does not establish those requirements on its own.

Check how the interior and exterior can be cleaned according to the selected design. During care, inspect openings and surface transitions for tears or damage. A distorted or damaged hollow component should be replaced rather than pierced or repaired in a way that changes its construction. Preserve the intended wall geometry when selecting a replacement version.

Material options

Custom silicone or rubber formulation, with dimensions and color adapted to the mating component.

Hardness range

Silicone: 20–80 Shore A; rubber: 30–90 Shore A. Assess the grade against this fit requirement: The outside diameter alone does not describe how the part deforms when handled or loaded.

Custom profile & fit

Define the wall sections, any openings, and the intended use together so the finished form can be assessed under the conditions it will actually encounter.

Assembly considerations

Check how the interior and exterior can be cleaned according to the selected design.

Design check

Where the hollow form is incorporated into a toy or contact product, assess the completed construction and chosen formulation for the intended users and contact conditions.

Photos illustrate structure or material only. The outside diameter alone does not describe how the part deforms when handled or loaded. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.