Plasticized silicone varnished glass fabrics

摘要

At the outset it was observed that the flexibility of phenyl methyl silicone varnished glass fabric was very variable. One. lot of the material was found to have satisfactory flexibility, while the next lot might be otherwise, in that it is “too stiff”, thus making it extremely difficult, if not impossible, to work or pull the material into position without mechanically damaging the varnish film, thereby making the material practically useless. It was soon recognized that if the phenyl methyl silicone varnish film could be plasticized this should be the answer to the problem of non-flexibility, providing there was no substantial sacrifice in the inherent properties of the phenyl methyl silicone resin.