Masking Pull Plugs
Masking Pull plugs are ideal for masking threaded and plain through-holes. To apply, just pull the thinner end of the plug through the hole until it stretches the larger end through the hole; then release it so it will compress and make a tight seal. These come in a premium high-temp silicone material or in a economical reduced temp EPDM material. Applications include Powder Coating, E-Coating, Plating and Anodizing.