lion knight rv roofseal sealant tape, white-4" x 50' with roller (length 50') uv & waterproof white rv seal tape for rv roof repair, window, boat sealing, truck and camper roof leaks lion knight installation tips: 1. clean surface with isopropyl alcohol and let dry completely. mineral spirits, silicone, waterproof materials, and solvent residue can prevent proper bonding. 2. remove the clear plastic release liner to reveal the sticky side of the tape. keep the adhesive side of tape clean and dry. apply tape to the surface. 3. apply firm pressure to the tape with seam roller to promote bonding creating a long term bond. 4. the bond shall not be torn or peeled within 24 days after construction. note: installation is not recommended when air temperature and/or surface temperature is below 48f. cold weather below 48f can cause adhesion issues during install.