WEB EXCLUSIVE: Celanese Corp. (formerly Ticona Engineering Polymers), Florence, Ky., introduced a flexible acetal copolymer for fuel-system pipes and tubes that require enhanced mechanical characteristics. The Hostaform PTX series was launched at the K 2013 show in Dusseldorf, Germany.
Said to deliver unique elastic mechanical properties that provide users with a technical alternative to traditional thermoplastics used in automotive in-tank fuel and vapor lines, Hostaform PTX meets fuel-system requirements for flex fuels and highly aspirated engines designed to reduce CO2 emissions. It reportedly challenges nylons 11 and 12, since no undesirable oligomers migrate into the fuel, which can reduce engine performance.
New Hostaform PTX was developed with a proprietary technology that improves the acetal copolymer coupling strength to modifiers and other additives. The result is an enhanced package that differentiates Hostaform PTX from other impact modified thermoplastics. Suitable for both injection molded and extruded fuel-system applications, it boasts mechanical properties similar to nylons 11 and 12; excellent toughness and resilience at -40 F/C; performance at -40 F to 149 F; broad chemical resistance and good dimensional stability. It also meets in-tank material requirements (burst-pressure performance) and offers potential cost savings.