Fire Retardant Epoxies
The epoxy systems in this group are highly engineered products designed to meet or exceed the requirements of the various flame retardant specifications for which they were developed. They are filled laminating compounds that have good handling characteristics and provide very high physical properties in addition to their excellent fire retardant capabilities. They are well suited to a wide variety of production and tooling applications where the combination of very good physical properties and outstanding flame retardant abilities will provide durable parts and tools.
PT2475 is a filled, off-white epoxy laminating system designed for use in constructing fire retardant laminates for parts or reinforcements. PT2475 meets the requirements of the FAR 25.853 Specification. This system has a 1 hour pot life at normal ambient temperatures, which will allow the construction of larger laminated than would be possible with a faster material. The system cures well at room temperature, and the cure can be accelerated with the addition of mild heat if desired.
PT5355 is an epoxy laminating system with cured fire retardant characteristics that meets the requirements of the FAR 25.853 specification. Independent lab tests show that this material significantly exceeds the minimum requirements of this specification. It has well-balanced handling characteristics for ease of use and quick fabrication capabilities. There are two hardeners available for use with PT5355 resin for different size laminates. PT5355 Part B has a 30 minute pot life, and is intended for smaller items and patching applications. PT5355 Part B1 has a 1 hour pot life, and is intended for larger laminates. Both hardeners will cure completely at room temperature and provide very similar properties when cured.
PT5358 is an epoxy laminating system with cured fire retardant characteristics that meets the requirements of the UL 94 V-0 specification. The cured physical properties of PT5358 are quite good, and laminates made with it will give long service in the most demanding applications. It has well-balanced handling characteristics for ease of use and quick fabrication capabilities.