LORD® 320/322 adhesive is a general purpose, two component epoxy adhesive system formulated for primerless adhesion to automotive sheet molded compounds (SMC). This adhesive system also provides excellent adhesion to prepared metals, rubber, fiberglass reinforced plastics (FRP), polyester thermosets and thermoplastics, and many other materials. LORD 320/322 adhesive can be either room temperature cured or heat cured for faster processing
Features and Benefits
Durable– provides load bearing properties equal to or greater than the materials being bonded; provides impact resistance down to -40°F (-40°C) and extreme durability through superior inhibition of crack propagation.
Environmentally Recommended – contains no solvent, nonflammable and virtually odorless.
Environmentally Resistant – resists humidity, sunlight, salt spray and temperature extremes
High Temperature Resistant–resists postbakes up to 400°F (204°C).
Chemically Resistant–solvent resistant when cured; anti-corrosion processes including phosphatizing and ELPO (e-coat) coatings do not affect the adhesive or its bond strength. Continuous immersion in solvents is not recommended
Surface Preparation– Remove soil, grease, oil, fingerprints, dust, mold release agents, rust and other contaminants from the surfaces to be bonded by solvent degreasing or alkaline cleaning.
On metal surfaces which are free of oxidation, use an isopropyl alcohol wipe. If necessary, use an abrasive material to remove tarnish. Always follow abrasion by a second cleaning to ensure removal of loose particles.
When bonding cured rubber, allow LORD 7701 adhesion enhancer/surface modifier to flash off before applying LORD 320/322 adhesive. Prime glass and ceramic surfaces with LORD AP-134 adhesion enhancer/surface modifier to promote adhesion.
Handle prepared surfaces carefully to avoid contamination. Assemble as soon as possible.
|320 Resin||322 Hardener|
|Appearance:||Off-white Paste||Grey Paste|
|Viscosity, cP @ 77°F (25°C)||300,000-1,000,000||450,000-2,000,000|
|Density lb/gal (kg/m3)||12.5-12.9 (1498-1546)||10.33-10.54 (1238-1263)|
|Flash Point (Closed Cup), °F (°C)||>200 (>93)||>200 (>93)|