Masterbatches, compacts, coupling agents and compatibilizers for thermoplastic processing. Supplying proprietary and private label products globally. ADDCOMP has designed custom solutions for a broad range of manufacturers, compounders, and converters of polyolefins, polyesters, polystyrenes, and polyamides. Drawing on our engineering resources and expertise, we offer a portfolio of core products based on some of the most sophisticated technologies in the industry.