30’x40′ Large Heavy Duty Poly Tarps 5Mil-18Mil Waterproof Canopy Cover Tarpaulin. Durable and heavy duty tarp is made from high-density, tightly woven. High and low temperature resistance, anti-aging and corrosion resistance. Double coated, waterproof on both sides. High-temperature heat-sealing hem, heat-sealing stitching. No leakage, no deformation, no cracking. Four sides and four corners are designed aluminum buckle, easy to fix, stable and safe, durable and not deformed. Great for general Cover Tent, Camping Ground Sheet, Car Covers, Boat Covers, Machine Covers, Lumber Covers, Wind Protectors, Haystack Cover, Privacy Walls, Picnic Mats, Pool Covers. Material & Color. Poly Silver&Black (18Mil/16 Mil). Poly Coffee (16 Mil). Poly White (12 Mil). Poly Silver (10 Mil). Poly Army Green (5 Mil). Knife cloth (polyester in the middle, coated with PVC on the surface), which greatly enhances the fastness and waterproof performance of the product, and the service life can reach. PE tarpaulin, the middle of the interlayer is also made of PE plastic, the use of a long time, especially in the outdoor use of weathering will be more severe, the general recommendation is. Canvas tarpaulin: all made of canvas, without any coating, good air permeability, waterproof performance because of high yarn density, water molecules are not easy to pass through, but long-term contact with water will leak, in outdoor use for a long time will also weather, service life of. There are not finished size!!! Due to to the. Manufacturing Process Requirement, there is some. Deviation in size between Cut Size (referring to the material size using to produce) and Finished Size (referring to the actual finished tarp size) — see the CHART shown in one of the photos. So please noted that all the sizes listed are based on the Cut size. Aluminum buckle interval: 50cm. Fabric thickness: 5/10/12/16/18 mil. 1x Heavy Duty Tarp. This information is provided by the carrier and excludes weekends and holidays. If you insist on returning the item, please choose the reason. We apologize for the late reply during the holidays or weekends. Monday to Friday only (excluding Holidays). General Cover Tent, Ground Sheet, Car Cover, Boat. Lumber Cover, Wind Protector, Haystack Cover. Heavy Duty, Waterproof, Foldable, UV-Resistant, Water-Resistant, Weather-Resistant. Tarp Poly Tarpaulin Canopy. Boat Cover, Camping Shelter, Car Cover, Equipment Cover, Ground Sheet, Outdoors, Pool Cover.