M-D Building Products 2311 High Density Foam Tape, 1/2-by-3/4-Inch by 10 feet, Gray Firm, waterproof, dustproof and weathertight foam Minimal compression for weathertight seal between surfaces Easy, self-adhesive application seals top and sides of doors and windows High density /closed cell PVC foam 1/2-inch by 3/4-inch by 10 feet long