深圳市华思瑞科技有限公司

LORD 320/322 Epoxy 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.

Application: 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 abrasives to  remove oxidation and mill scale. 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. Mixing – Thoroughly mix the proper amount of resin  and hardener until uniform in color and consistency. Be  careful not to whip

excessive air into the adhesive system.  Handheld cartridges will automatically dispense the  correct volumetric ratio of each component. Heat buildup due to an

exothermic reaction between  the two components will shorten the working time of the  adhesive. Mixing smaller quantities will minimize heat  buildup.

Do not use any adhesive that has begun to cure.

Curing – LORD 320/322 Epoxy Adhesive will cure to full strength  in approximately 24 hours, provided that the adhesive,  substrates and ambient temperature

are 65°F (18°C) or  higher. Higher temperatures will provide faster cure times;  however, the bondline temperature should not exceed  325°F (162°C).

When heated at 180°F (82°C), full cure  strength can be obtained in 45-60 minutes. Elevated  temperature cure produces the highest bond strengths

and impact resistance. Firm recommendations of cure  times and temperatures depend on material composition  and heating methods.

Once the adhesive has cured, it can be filed, sanded,  machined or otherwise handled in the same way as a light  metal. Paint, lacquers, enamels and other coatings can be  applied to cured adhesive.