Featuring a non-halogenated filler, Master Bond EP21FRNS-2 is a two component, room temperature curing epoxy offering low smoke generation for potting, encapsulating and casting applications. As per the UL 94V-0 specification, this system is serviceable over the wide temperature range of -60°F to 200°F. It is remarkably resistant to thermal cycling and many chemicals. EP21FRNS-2 is exceptionally durable/tough and features a convenient one to one mix ratio by weight.