masking flangeless silicone plugs Ideal for powder coating, spray painting, plating, anodizing, e-coating etc reusable masking flangeless silicone plugsIdeal for powder coating, spray painting, plating, anodizing, e-coating etcPlugging threaded holes without masking surrounding areas Material: silicone rubber, shore A 55, good sealing capabilities, excellent chemical resistance and reusable, ...