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LORD® 320/322 Epoxy Adhesive
September 4th, 2008
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Company: Lord Corporation
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 processimg.
Features and Benefits
provides load bearing properties equal to or greater thatn the materials being bonded; provides impact resistance down to -40°F (-40°C) and extreme durability through superior inhibition of crack propagation.
contains no solvent, nonflammable and virtually odorless.
resists humidity, sunlight, salt spray and temperature extremes.
High Temperature Resistant
resists postbakes up to 400 degress F (204 degress 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.
Remove soil, grease, oil, fingerprints, dust mold release agents, rust and other containments 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. For superior environmental resistance, prime metal surfaces with LORD 7714-A/B primer or equivalent.
When bonding cured rubber, allow LORD 7701 surface treatment to flash off before applying LORD 320/322 adhesive. For superior environmental resistance, prime glass and ceramic surfaces with LORD AP-134 primer. Handle prepared surfaces carefully to avoid contamination. Assemble as soon as possible. Typical Properties* 320 Resin 322 Hardener Appearance Off-white Paste Gray Paste Viscosity, cP @ 77°F (25°C) 300,000-1,000,000 450,000-2,000,000 Brookfi eld HBF T-Bar Spindle D T-Bar Spindle E Helipath, 5 rpm Density lb/gal 12.5-12.9 10.3-10.5 (kg/m
320 Resin 322 Hardener
Appearance Off-white Paste Gray Paste
Viscosity, cP @ 77°F (25°C) 300,000-1,000,000 450,000-2,000,000
Brookfi eld HBF T-Bar Spindle D T-Bar Spindle E
Helipath, 5 rpm
lb/gal 12.5-12.9 10.3-10.5
3) (1498-1546) (1234-1258) Flash Point (Closed Cup), °F (°C) >200 (>93) >200 (>93)
Flash Point (Closed Cup), °F (°C) >200 (>93) >200 (>93)
*Data is typical and not to be used for specifi cation purposes.