High-impact GRP for sandwich facings

LAMILUX has developed LAMILUXplan High Impact, a fiber-reinforced thermoset panel system designed for sandwich facings in high-impact sidewall and roof structure applications on trucks and other vehicles.

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LAMILUX (Rehau, Germany) has developed LAMILUXplan High Impact, a fiber-reinforced thermoset panel system designed for sandwich facings in high-impact sidewall and roof structure applications on trucks and other vehicles. The manufacturer says the panel offers the impact resistance and surface appearance of polished metal facings (such as aluminum), with the low thermal conductivity and elastic deformability of thermoplastic materials. Other features include resistance to UV light, weathering and corrosion. The facings also provide the rigidity, stability and low specific mass per unit area of thermosetting polymers, with a surface that is receptive to painting. In impact testing conducted by LAMILUX, the facing passed the Charpy impact test according to ISO 179/2n, as well as tests for flexural strength, according to DIN EN ISO 14125/WKII, and tensile strength, according to DIN EN ISO 527-4/2/2. These tests revealed that the facing achieves an impact resistance of up to 100 kJ/m² and a flexural strength of 305 N/mm². The tensile strength is 240 N/mm². A 1.0-cm/0.4-inch-wide strip of LAMILUXplan High Impact with a thickness of 0.8 mm/0.35 inch tears with a tensile loading of more than 155 kg/342 lb.