Heat resistant elastic silicone rubber bands

Silicone rubber bands provide an elastic loop for a suitable retaining or bundling arrangement. Their useful fit depends on the relaxed size, cross-section, and amount of extension required around the intended object. A loop that can be stretched into place is not necessarily operating within an appropriate long-term condition.

For an application involving heat, establish the actual exposure and choose the formulation accordingly. Temperature, time under extension, and contact with surrounding materials all influence suitability. The heat-resistant description should not be treated as a universal temperature rating or permission to place the band against any hot surface.

Route the loop over smooth contact areas rather than sharp corners that concentrate strain. Consider how it will be installed and removed without overstretching one short section. Inspect the band in its relaxed state periodically for cuts, cracking, or a lasting change in length. If it no longer provides the intended retention, replace it rather than adding excessive extra turns that create a different strain pattern. The complete retaining arrangement should be checked for the consequences of the loop slipping or breaking.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. A loop that can be stretched into place is not necessarily operating within an appropriate long-term condition.

Custom dimensions

Customize the loop circumference and cross-section for the retained parts, defining relaxed dimensions and the intended fitted stretch.

Fit & assembly

Inspect the band in its relaxed state periodically for cuts, cracking, or a lasting change in length.

Use & inspection

If it no longer provides the intended retention, replace it rather than adding excessive extra turns that create a different strain pattern.

Photos illustrate structure or material only. Route the loop over smooth contact areas rather than sharp corners that concentrate strain. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.