Chemark 1374 belongs to a class of highly durable glycoluril family. It is used as a cross-linking agent in powder coatings for various indoor and outdoor applications. Due to its excellent weatherability, Chemark 1374 is especially useful for exterior surface applications such as lawn and garden equipments, furniture and building products. Chemark 1374 can be used to crosslink various kinds of polymers containing hydroxyl, amide and mercapto functionalities when heated in the presence of acid catalysts. The performance of Chemark 1374 is greatly addressed when used in powder coating formulations containing polyester or acrylic polymers. It provides the advantages of non-yellowing overbake, excellent light stability, superb solvent resistance and the ability of fast cure at low temperature.