... , bridge, park, swimming pool, tunnel for waterproof and moistureprof. Bitumen is a hydrocarbon and is created naturally from crude oil ... ) component such as sand. Polymers are added to the bitumen such as APP (atactic polypropylene) a plastic additive that ... Material (Reinforcement) - Polyester, fiberglass, etc. These products are bought in roll format and are pulled through the bitumen mixes on huge ...