PrimeShield is a revolutionary new masking product for sealing door gaps and vehicle apertures. The product can dramatically speed up the time it takes to seal, and protect vehicle panel gaps prior to the priming application. Before masking for the primer application, vehicle door gaps have traditionally been rough masked. In a variety of ways to prevent primer overspray entering the vehicle. Masking Paper, Film, Tape, and Soft Foams have all been used for this purpose. But this has always been time consuming, and not cost effective. Now there is a better far easier and more cost effective way.