Topcoat with polyaspartic binders for corrosion protection formulated

The topcoat is based on polyaspartic binders. Source: Bayer MaterialScience

The BayArena, the home of Bundesliga soccer team Bayer 04 Leverkusen complies with the very latest international standards. Bayer MaterialScience played a role in this. The discus-shaped, translucent roof with a diameter of 217 meters is a new and spectacular showpiece project for the application of "Makrolon" high-tech sheeting. To ensure durability, the steel support structure, weighing around 3,000 metric tons, has been provided with a special anti-corrosion coating based on polyaspartic raw materials. With large structures such as bridges and power plants, a three-coat paint system is normally used to provide the corrosion protection needed to withstand the ravages of wind and weather. To protect the steel girders of the BayArena, however, a different concept was chosen. With the innovative topcoat used here, which is based on polyaspartic binders, two coats were sufficient, because a much higher film thickness can be obtained with one application than is possible with conventional topcoats. Whereas a normal three-coat system takes about 24 hours to apply and dry, the complete application of the two-coat system takes six to eight hours.