SILRES^® HP 1250

• Silicone Resins

SILRES^® HP 1250 is is a glycidoxy functional silicone polymer, which is used as a binder to increase UV resistance and corrosion resistance of coating formulations. This patented* technology combines the chemical resistance and adhesion of an epoxy resin with the UV and high temperature resistance of a silicone polymer into one product. The incorporation of phenyl substituents on the silicon atom increases high temperature resistance and chemical resistance of the polymer. In addition the phenyl substituent increases the compatibility of the silicone with organic polymers such as acrylics, fluorocarbons, and polyesters. The use of difunctional dimethyl groups increases the flexibility of the coating which increases the resistance of the polymer to cracking. The ratio of tri-functional (T-units) silicon to di-functional (D-units) silicon is balanced to maximize the amount of high energy Si-O-Si concentration without sacrificing flexibility. The high level of T units increases the polymers ability to form a durable, chemical resistant coating. The incorporation of D units increase the polymers flexibility (see figure 1). The epoxy functionality on the SILRES^® HP 1250 make it ideal for developing low VOC (volatile organic compounds), room temperature curable coatings, which have little to no film shrinkage (see figure 2). The incorporation of a glycidoxy group directly to the silicon atom through a Si-C bond increases stability and makes the polymer resistant to hydrolysis.