It is our pleasure to announce that David Roberts will join us as Technical Director of The R.J. Marshall Company effective January 1, 2019. He will be working between his home office in Sheboygan Falls, Wisconsin and our headquarters in Southfield. … Continue reading →

The R.J. Marshall Company launches new website dedicated to the Marshall Additive Technologies Division (MAT). Marshall Additive Technologies (MAT), a division of The R.J. Marshall Company, is a premier supplier of highly effective flame retardant and smoke suppressant additives. MAT … Continue reading →

Introducing 5 NEW Spray Granite Extreme (SGE) colors! These SGE products offer current trending colors and are designed to be used as a spray coating in cast polymer applications.     *Features a reflective additive   In stock, ready to … Continue reading →

Castable Granite Effect Fillers New Stone Fill Special Effects (SFX) products offer a crisp, translucent appearance, and trending design. Created for casting behind a clear gel coat, SFX colors are packaged as an easy to use one bag mix. *Features a … Continue reading →