Endura® TPR-300 is an EDPM-based flame-retardant masterbatch compatible with solvent-based systems or in non-solvent based modified bitumens and asphaltics, and with EPDM systems. TPR-300, when used properly, is designed to yield finished products that are to meet NFPA-253 and NBSIR 75-950 flammability standards.

Endura® TPR-300 is easily dispersed in solvent-based systems and is readily mixed with molten modified bitumens.

Because of its high loading, Endura® TPR-300 achieves physical properties comparable to the base resin and modified flammability characteristics with a low letdown ratio. Endura® TPR-300 utilizes a halogenated decabromodiphenyloxide free flame-retardant system with antimony oxide synergists.