Specially formulated Seam Seal is the ideal repair sealant for seam splits, large holes and cuts, and for areas that have high wear and are in need of abrasion protection. Seam Seal can be used on vinyl (both with or without fabric support), all types of neoprene, fiberglass, leather and on most synthetic fabrics. This is not a “quick fix” repair, as Seam Seal requires overnight curing (12 to 24 hrs.) to reach full strength. Once Seam Seal has reached full strength, it will have the flexibility to give and stretch. It will not peel off, lift up, darken in color or deteriorate like similar products. No cutting of patches as Seam Seal is its own patch.