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November 2011
REACH-compliant adhesives

Huntsman Advanced Materials has introduced three epoxy adhesives, for use by aerospace manufacturers and maintenance/repair organizations, that are compliant with the European Union’s Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) regulations.

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Posted on: 11/1/2011
High-Performance Composites

Huntsman Advanced Materials (The Woodlands, Texas) has introduced three epoxy adhesives, for use by aerospace manufacturers and maintenance/repair organizations, that are compliant with the European Union’s Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) regulations. Araldite EP 1000 A/B epoxy adhesive is a nanotoughened structural adhesive paste that features very high lap shear strength and good peel strength at temperatures up to 250°F/121°C. The translucent epoxy can withstand exposure to aviation fuels and hydraulic fluids. Reportedly suitable for bonding composites, metals and dissimilar materials, and easily extruded from premeasured, dual-barrel cartridges, it cures at room or elevated temperatures. Araldite AW 4859 Hardener/HW 4859 epoxy adhesive is formulated for bonding composite aircraft structures, including stringers, ribs, spars and flight-control surfaces. The epoxy produces joints with excellent hot/wet strength, has a service temperature up to 284°F/140°C and has good resistance to moisture and chemicals. Supplied in convenient dual-barrel cartridges and bulk containers, the toughened black adhesive is sag-resistant and fills gaps. Araldite 1570 FST A/B epoxy adhesive is a flame-retardant, halogen-free black paste for bonding and repairing cargo panels as well as other composite and thermoplastic components used in aircraft interiors. The system meets flame, smoke and toxicity standards, including FAR 25.853 (a) and (a-1) and AITM 3.0005, and it is qualified to an Airbus specification. The lap shear strength of the room-temperature cure material is more than 2,400 psi/16.55 MPa.  

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