A refined oil base gel to add to crumbled hard polymer clay. Several passes and folding with gradual narrowing clay roller gap will soften years old and hard polymer clay. All polymer clay inherent characteristics is self hardening over time and require kneading to redistribute its plasticiser before use. Add sufficient to recondition clay to working features required.
Also use to rust proof metal tools and knives and as a release agent in garden craft cement castings.