New styrenic thermoplastic elastomers are said to perform similarly to thermoplastic vulcanizates in window gaskets.
Teknor Apex Co. says its new series of Monprene TPEs also have advantages over TPVs, such as less — or no — die drool during coextrusion of the window gasket and resistance to staining from paints. Compounds in the IN-23000 series adhere well to the polypropylene or high-modulus TPE substrate that serves as the rigid supporting component in weatherproof seals in PVC, metal and wood window frames.
Some grades in the series can be processed with the same tooling as PVC profiles at similar throughput rates and die pressures, according to Teknor Apex. Rubberlike seal recovery, low-temperature toughness and UV resistance of the IN-23000 series provides resistance to moisture and air demanded in this application.
The company also supplies TPVs in its Sarlink product line and the new styrenic TPEs allow Teknor Apex to be “polymer-neutral” in recommending TPEs for window seals, states senior market manager Stef Hordijk. Teknor Apex offers reliable supply of the IN-23000 materials and makes them available for rapid sampling, in small lots and as pre-colored compounds.
Teknor Apex is based in Pawtucket, R.I.
Tel. 866-438-8737 or 401-725-8000, fax 401-728-5680, email [email protected].