VaporCoat 2200R provides maximum moisture resistance, and is hot-melt gluable only; VaporCoat 1500 provides economical moisture-resistance and is also hot-melt gluable only; VaporCoat 330C provides excellent moisture resistance when used in conjunction with a base coat, is print receptive and is both cold-set and hot-melt gluable.
Each VaporCoat Series coating, which is measured by the Moisture Vapor Transmission Rate (MVTR), has been engineered to keep frozen foods fresh and fine papers dry. MVTR tests moisture resistance over a 24-hour period under controlled conditions. There are five defined sets of temperature and humidity conditions, ranging from moderate to severe. Michelman normally tests at the most severe level, using the ASTM E96 test procedure (100% F, 90% RH).