NEMA stands for National Electrical Manufacturer Association. ( www.nema.org) NEMA ratings are used as standards that define different types of environments that an electrical enclosure can be used in. Typically, this rating system signifies a fixed enclosure's ability to withstand certain environmental condition or conditions.
One advantage of the low pressure laminate manufacturing process is the ability to use a variety of fillers and additives to create a range of desirable properties. Low pressure laminates are a type of composite material made from a base or substrate raw material that is typically a random mat glass. This random mat glass is then impregnated with a specific resin system, usually in the polyester resin family. This composite of glass mat substrate and the particular resin system help each laminate material achieve a specific set of properties. The end result of the process produces an excellent combination of thermal performance, dielectric properties, and mechanical strength.
Formulated and manufactured from fiberglass reinforced thermoset polyester resins Glass polyester sheets are formulated for superior electrical, thermal and mechanical properties. Glass polyester sheets are used in many applications including the electrical/electronic, water/land/air transportation and appliance markets.