The Epoxy chemistry is one of the most common chemistries used for encapsulating electronics for intrinsic safety. There are alternates in case the epoxy chemistry just doesn't meet the requirements your product needs to withstand. Below is some general information that may help you choose one chemistry over another. Within these 4 chemistries there are hundreds of different formulations to choose from. Each formulation has different properties. Industrial Thermoset Plastics has hundreds of materials in stock and access to many times more. If you are building a product that needs encapsulation for intrinsic safety you can contact us with your requirements to help choose a suitable material for your project.