Originally Posted by
Towlie
The way you could make it stronger is to reinforce it with fibers or particles, as in the case of carbon-fiber (which is carbon-reinforced plastic) or metal-matrix composite, but that has already been done with better matrix materials than PVC.
Metal matrix composites are composites that use metal as the matrix, not polymers. Examples of this would be putting something like silicon carbides into a liquid phase metal to increase the fracture toughness, stiffness, ect.