There are two major technology for producing PVC tarpaulin:Laminated or knife coated. What’s the difference between them?We will provide some useful information for you.Laminated one1.Laminated one is usually for indoor uses,normally not UV treated.2.Laminated one is easy to crack below freezing temperature.3.Laminated one can be Flame retardant. Great for indoor uses.4.Size stable. Will not shrink under normal conditions.Knife coated one1.Strong tear resistance. Trailerable. Often used to manufacture truck tarps for tractor-trailer or semi trucks.2.Waterproof3.Superior low temperature performance 4.Size stable. Will not shrink under normal conditions.5.Normally UV coated.