Vapor Barrier Tape Moisture Barrier Seam and Seal Adhesive for Crawlspace Encapsulations, Carpet Padding, Masking, Underlayment or Marine Use, Waterproof 9 Mil Poly Tape (White, 4 Inches x 180 Feet) HIGH PERFORMANCE: Heavy duty, commercial grade white vapor barrier tape measures 4in wide x 180ft long and is 9mil thick. It's highly durable, sticky, insulating, weather and water proof and designed to withstand the most demanding conditions. Finish jobs with speed and reliability. DURABILITY: Moisture resistant PE (Polyethylene) film backing features an extremely sticky adhesive for seaming and sealing plastic poly liners and vapor barriers. Provides a great sealant for crawl space wall liners, dust barriers, canvas and more. CRAWLSPACE ENCAPSULATIONS: High performance and superior quality synthetic rubber-based pressure-sensitive adhesive coating is designed to offer high conformability that bonds well to a variety of surfaces. MULTIPURPOSE: This UV-resistant film is ideal for abatement and restoration, marine and boat preservation, shrink wrap, patch and repairs, pipes, outdoor masking of stucco application and painting, basement and underlayment. Heavy Duty Vapor Barrier Seam Tape for Crawl Space and Marine Use. This heavy duty 60 yard roll of moisture resistant crawl space vapor barrier seam and seal tape is highly durable, waterproof and weatherproof. It features a 9 mil thick poly film, backed by a synthetic rubber adhesive, that is used for binding the seams of a moisture barrier when encapsulating a crawlspace. Plus, it's great for covering staples or vapor barrier stakes for a finished look. UV-resistant polyethylene film tape can also be used for masking surfaces during stucco application and painting, abatement and restoration, home and office renovation, boat and marine preservation, patching and repairs, surface protection, color-coding, splicing and seaming on pipefitting covers. It's highly versatile! It also works well as an underlayment under floating floors, carpet padding and more! Product Specifications: 4 Inches Wide x 180 Feet Long. 9 Mil Thick. Our tape is made from the best materials and quality available.