Industry News

New Purmelt® Adhesive Withstands High Temperatures and Reduces Exterior Panel Distortion on RVs

Published on 2010-08-05. Author : SpecialChem

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™.

Henkel operates worldwide with leading brands and technologies in three business areas: Laundry & Home Care, Cosmetics/Toiletries and Adhesive Technologies. Founded in 1876, Henkel holds globally leading market positions both in the consumer and industrial businesses with well-known brands such as Persil, Schwarzkopf and Loctite. Henkel employs about 50,000 people and reported sales of $18.86 billion and adjusted operating profit of $1.84 billion in fiscal 2009. Henkel's preferred shares are listed in the German stock index DAX and the company ranks among the Fortune Global 500.

Source: Henkel

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