Service Description Polyvinyl chloride (PVC) is a synthetic material derived from natural resources (oil and salt). Like many materials used in our modern world, air-welding PVC strips is extremely hot. The heat-welded seams form a permanent, water-resistant bond stronger than the fabric itself. It is modified with plasticizers and UV stabilizers, and reinforced with fiberglass non-woven mats or polyester woven scrims. Therefore, thicker fabrics contain more plasticizers to maintain flexibility, which helps extend their lifespan. PVC coils are characterized by their fire-resistant nature due to their special chemical composition. Uses