Question: what is the difference between polyester and polypropylene rugs?
Answer: Water Resistance Polypropylene and polyester rugs repel moisture, so they're less likely to grow mold or mildew. ... A plastic backing will keep out odor and mold, while a natural fiber jute backing will hold it in. Polypropylene is the less absorbent between the two so it's better suited for accident-prone households.