es, they are flammable with a flashpoint of 32° (90°F), only if it has a styrene monomer. Other resins that have methyl methacrylate monomer tend to have lower lash points, all depending on how much there is present. There is a chemical reaction between the resin and hardener during the curing process. This is called an exothermic reaction. If this reaction becomes uncontrollable, it can start to foam and give off smoke and noxious gases. It could produce enough heat to melt the container it is in and can even trigger nearby items to ignite.