Outdoor PVC tarpaulin (also called waterproof tarpaulin) is a high-strength, good toughness and softness waterproof material, often used as canvas (oil canvas), polyester coated with polyurethane or made of polyethylene plastic. PVC coated tarpaulin usually have strong grommetes at the corners or edges to make it easy to tie, hang or cover with a rope.

PVC heavy duty tarpaulin are generally divided into two categories: coarse tarpaulins and fine tarpaulins. Coarse tarpaulin is also called tarpaulin. The fabric is strong and durable, and has good waterproof performance. It is used for the cover of automobile transportation and open-air warehouses and tents in the wild.Fine tarpaulin warp and weft yarns are used for making and labor protection clothing and supplies. After dyeing, it can also be used as shoes, travel bags, backpacks and other fabrics.

In addition, there are rubber tarpaulins, fireproof and radiation-proof shielding tarpaulins, and paper machine tarpaulins.The unit for calculating the density of tarpaulin fabric is metric, which refers to the number of warp and weft yarns arranged within 10 cm. The size of the density directly affects the physical and mechanical indicators such as the appearance, feel, thickness, strength, folding resistance, breathability, abrasion resistance and warmth of the fabric, and it also affects the cost of the product and the size of the production efficiency.