Bayer MaterialScience’s Bayblend T88 GF-10 glass fibre-reinforced polycarbonate/blend (PC/blend) resin is designed as a replacement for styrene maleic-anhydride (SMA) resins in applications such as instrument panel retainers and other interior structural parts.
“”We developed this resin to directly compete with glass fibre-reinforced SMA materials by offering improved physical properties,”” said Dave Siler, interiors key account manager, Bayer MaterialScience LLC. “”Now that the SMA material will no longer be available, we can offer a seamless transition for decision makers in need of a replacement material which is available globally for current production model year interior parts.””
Interior part suppliers have designed tools to fit SMA’s unique shrink rate range, and typically, alternative materials do not fit the same tools. However, this particular PC/blend resin from Bayer MaterialScience has the same shrink rate range as SMA resin, allowing OEMs to continue to use existing tooling for their automotive interior applications.
In addition to offering a smooth transition from SMA resins in a variety of automotive applications, the PC/blend resin from Bayer MaterialScience reduces the problem of a high in-process scrap rate that OEMs experienced with SMA resins due to its “higher tensile strength and elongation.”
According to Bayer, other advantages that the resin offers include a higher flow, improved surface cosmetics, better heat ageing performance and good adhesion to polyurethane foams. In addition, the glass fibre reinforced PC/blend resin offers lower volatile organic compound (VOC) emissions when compared with the glass-filled SMA resins, making it a more environmentally friendly option.
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