Acrylated Performance Products for Sandable Sealers
Although unsaturated polyester systems show poor mechanical properties and low humidity resistance,4 they impart good substrate wetting and adhesion properties5,6 and they represent an economic alternative to coatings based on acrylate oligomers. It is estimated that 50% of the vehicles used in wood fillers in North America are based on unsaturated polyester resins.7
Surface Specialties has developed two acrylated experimental products, RX 02677 and RX 02678, to formulate highly filled wood sealers. These products are characterized by excellent substrate and pigment wetting and were designed to impart good mechanical properties. We have prepared model formulations of wood sealers and compared their performance properties with those obtained with sealers based on unsaturated polyester resins.