CSP launches TCA Float ultra-low density material for automotive body panels

A Corvette C8 decklid molded from CSP’s new TCA Float. This material is said to provide a sub-1.0 specific gravity density with a Class A surface that is also e-coat oven capable. When used as a direct replacement for TCA Ultra Lite, it can result in weight savings of up to 25%. Source | CSP

CSP’s Advanced Materials team (Auburn Hills, Mich., U.S.) introduces TCA Float, an ultra-lightweight sheet molding compound (SMC) material for automotive body panel applications.

TCA Float is said to offer a sub-1.0 specific gravity (SpG) density and is reported to be the first sub-1.0 material available on the market to provide a truly paintable Class A surface.

TCA Float is 23% lighter than CSP’s award-winning TCA Ultra Lite, but similar in strength, so that the new material can be used as a direct replacement in current designs and applications without changes to existing tooling or manufacturing processes while maintaining surface quality and paintability.

For comparison, 24 body panels of a current production vehicle are being molded with TCA Ultra Lite. If these 24 panels were molded using TCA Float instead, it would result in a mass savings of more than 24 kilograms.

CSP reports that the ultra-low density of this material is achieved while maintaining critical mechanical properties, paint adhesion and bond strength.

“We are constantly looking for ways to make our materials lighter, stronger and more sustainable,” explains Mike Siwajek, vice president, Research & Development. “TCA Float was named because our intention was to create a material so light it would literally float on water. This material provides an ultra-lightweight solution where a Class A surface is needed, but part weight is a consideration, especially for something like a removable roof panel. Ultimately, TCA Float improves upon our TCA portfolio with the same base resin chemistry that has allowed us to be the industry leader in Class A SMC for over twenty years.”