New Purmelt Adhesive Withstands High Temperatures And Reduces Exterior Panel Distortion On RVs

Rocky Hill, CT - To reduce distortion of FRP panels exposed to direct sunlight, Henkel Corporation has introduced a new urethane hot melt adhesive formulated to withstand high temperatures in excess of 200°F. Highly-durable Purmelt R-200F+ improves distortion resistance up to five times longer than traditional polyurethane adhesives, and allows manufacturers to use dark graphics and full-body paint on sidewall designs.

Suitable for roll coating processes, patent-pending Purmelt R-200F+ was developed to allow RV manufacturers to create aesthetically pleasing graphics and paint schemes without straining the fiberglass-reinforced plastic substrates on exposure to sunlight. Results from long-term durability testing show no distortion on panels made with Purmelt R-200F+ after 40 hours exposure at 200°F. When exposed to extreme 250°F heat, the Purmelt® R-200F+ panels took five times (5x) longer to distort than control panels made with standard polyurethane adhesives.

Purmelt R-200F+ is a drop-in replacement for any PUR adhesive currently on the market, yet results in higher quality panel constructions. The product is user-friendly and machines well to facilitate application. This Purmelt adhesive is also available with a UV tracer as Purmelt R-200 UV.

SOURCE: Henkel Corporation