ITW Devcon has developed two new
fire-retardant epoxy adhesives for
bonding metals, fabrics, ceramics,
wood, vinyls and concrete for use in
the aerospace,marine,
electricity generation
and rail industries.

These new IFR
adhesives are white, two-part self
extinguishing structural epoxy
systems. They include a five minute
working time version with a fast cure
time (one hour) and a 10 minute
non-sagging version which cures in
three hours and is suited to use on
vertical and overhead surfaces. The
products are available in cartridges,
are easy to mix and can be applied
using a dispensing gun. The
company developed its 10 minute
long open time product in response
to customer and market needs.

The five minute version has a
tensile lap shear strength
of 11.9MPa, service
temperature range is -40
to +93°C, shelf life is two
years and both versions
meet the requirements of FAR 25.853
[a] [60 Second Vertical Burn Test],
FAR 25.853 [d] Smoke Density and
BSS 7239 Toxicity of Combustion Gas
– Flaming Mode UL 94 V-O.