MOSCOW (MRC) -- Teknor Apex has announced that it has developed a series of flexible PVC injection moulding compounds that have been used successfully in automotive window encapsulation, as per GV.
The enhanced Apex 1523 compounds, named the Apex 1523-LG series, exhibits gloss levels similar to those of EPDM rubber beltline seals or glass run channels, enabling manufacturers of PVC-encapsulated windows to meet OEM demand for a closer match in the surface finish of these critical appearance parts. According to the company, the lowest gloss levels of standard PVC compounds for window encapsulation are in the 9 to 12 range as defined by SPI gloss finish standards, and they are achieved through etching or sandblasting of the tooling surface.
In contrast, Apex 1523-LG Series compounds achieve a gloss level in the 3 to 4 range without need for surface treatment of the tooling. This eliminates the costs associated with the tooling maintenance and repair required to keep a consistent surface appearance from part to part.
Like standard PVC, the new formulations are relatively low in cost, provide better scratch and mar resistance, good bonding to glass, and facilitate precise colour matching, said the company. The compounds have received several OEM material approvals, including the GMW-16084 specification for quarter windows from General Motors and the MSDC543 specification for quarter windows and sunroofs from Chrysler. Teknor Apex will introduce the new formulations at NPE2018, stand S22045. The company can manufacture these compounds in the USA, Europe, and China.
As MRC informed before, in late 2015, Teknor Apex expanded its "polymer-neutral" product by developing styrenic TPEs with alternative cost and performance profiles to those of TPVs in automotive exterior application.
Teknor Apex is one of the world's leading custom compounders headquartered in Pawtucket, Rhode Island, USA. The company produces PA compounds in the UK, the U.S.A., and Singapore. Teknor Apex is one of the world's leaders of specialty PVC compounds which are used in a wide range of applications from wire and cable to automotive, medical, consumer and industrial products. The company also produces thermoplastic elastomers, nylon, bioplastics, chemicals, specialty compounds.
MRC