Duracon 107/Matacryl 107 CM Primer is a low viscosity, colourless, two component reactive resin based on methyl methacrylate (MMA). USAGE: Duracon 107/Matacryl 107 CM Primer is used as a primer to give excellent bonding to metal substrates (e.g. iron, aluminum, stainless steel) and to ceramic tile substrates. We strongly recommend with all Duracon/Matacryl primers that curing and adhesion tests are conducted on the particular substrate prior to general use on site.