Prolite is the latest advancement in the highly successful R.J. Marhall lightweight product lines.  It is designed to be a lightweight, natural white replacement for calcium carbonate in gravity cast thermoset systems.  Prolite is available as a concentrate or as a pre-blended direct replacement of calcium carbonate.  Prolite is a cost competitive particulate system engineered to simplify your processing, improve the quality of your parts, and save you money. 

Improve Thermal Shock:

Independent testing has proven that products made with R.J. Marshall Company Prolite fillers perform better than conventional marble fillers; up to three times better in many cases.  When cast according to standard marble manufacturing procedures, Prolite fillers exceed all ANSI certification standards.  

Product codes:  PL15, PL25, PL35, PL50, PL50FG, PLFR50, C700, C500