Our vacuum cups are manufactured from two materials:
PVC vinyl: This is our primary material as we find it to be the softest yet hardest wearing material - the soft, pliable nature of the product offers excellent sealing capacity with wear resistance which is greater than rubber.
Silicone: This material is also soft but provides a greater temperature range (see chart below). However it does not have the same wear resistant properties of vinyl. Although we carry some silicone cups in stock mostare available on a special order basis.
Material Working temp Wear resistance Oil resistance
Vinyl 0°c to + 50°c Excellent Fair
Silicone -45°c to + 200°c Good Good