3 inch polypropylene webbing Uses: backpacks, bags, dog leashes, belts etc. It has a breaking strength of 450 pounds and a melting point of 330 degrees F. 80 $ 5. 35. The heavyweight weave is thicker and has a higher strength than its lightweight counterpart. This webbing is washable and can be dried on low heat. Polypropylene webbing is mildew, water, and UV resistant, inexpensive, and available in more colors than any other material. 25 3/4 Inch Plastic Slides - Wide Mouth Heavy Duty Triglide Slides. 7 2. Country Brook Design - 3 Inch Heavy Polypropylene (Polypro) Webbing - 2 Vibrant Colors. bzjbmjiyhqkxlxhynurrnobfregcjcwanpvudjnfkgqnvotjqwtoazwjekuktxiiklgyzcwfkmdlzasdxwchlawfaj