A cushion covering the clamp reduces vibration and wear from clamp edges. Clamps surround lines of pipe, tubing, and conduit completely while holding them close to the mounting surface.
Zinc-plated steel clamps have good corrosion resistance. 304 stainless steel clamps have excellent corrosion resistance.
EPDM cushions are for use in environments where clamps are exposed to water and steam. They withstand ozone and aging. Vinyl cushions are durable and withstand moisture and some chemicals. Silicone cushions withstand ozone, sunlight, oxidation, and high temperatures.