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Machine Design

Flame-Retardant Adhesive/Encapsulant

The clear-drying 5-Minute Epoxy FR is a flame-retardant adhesive/encapsulant for potting aerospace inserts and OEM applications requiring a self-extinguishing adhesive.

The epoxy fills gaps and bonds rigid substrates such as metal, glass, ceramics, concrete, and wood in all combinations. A creamy paste at room temperature, the product is packaged in 50-ml resealable Dev-Pak cartridges for manual or pneumatic applicator guns. Dispensed (1:1) with static mixing nozzles, it has a 115,000-cps viscosity, 3 to 5-min working time, and a 10 to 15 min fixture time, with functional cure in 2 to 3 hr. The epoxy has tensile shear strength of 2,800 psi on cold-rolled steel and dielectric strength of 490 V/mil. Bonds withstand service temperatures from 40 to 200°F and resist kerosene, motor oil, and unleaded gasoline.

Devcon, 30 Endicott St., Danvers, MA 01923, (800) 933-8266,

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