The rigid, closed-cell structure camper seal foam tape creates a waterproof and airtight seal. It is ideal for sealing the gap between the camper and truck panels. May also be used on other applications requiring a wider foam tape. Seals the gap between camper and truck panels; wide design provides extra protection from the elements. Closed cell PVC foam. 3/16 X 1-1/4 X 30 Ft. Gray