Blast Mask
Blast Mask 

Product Description:

Two inch by five inch rubber plug. Stainless Steel top and bottom plates.  Two cams used to increase closing force.  Double cam also aligns plates and rubber to prevent twisting.  Rubber has limber holes drilled to ease expansion.

Application:

Plug seals ends of hot rolled steel girders during sand (shot) blasting operation.  Plug provides quick insertion/removal and eliminates blow out operation after blasting.