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Lord 320/322
General-Purpose, High-Viscosity, Toughened, Two-Part, Epoxy Adhesive

Description
Lord® 320/322 is a general purpose, high viscosity, two-part, toughened, epoxy adhesive formulated for primerless adhesion† to automotive sheet molded compound (SMC). Lord 320/322 adhesive provides excellent adhesion to prepared metals, rubber, fiber reinforced plastics, polyester thermosets and thermo­plastics and many other materials. The adhesive has proven its strength, durability, and environmental resistance on thousands of vehicles.

Features and Benefits
Contains No Solvents - provides a 100% solids adhesive, nonflammable and virtually odorless. The uncured adhesive can be cleaned up with hot water or solvents.

High Strength - provides load bearing properties equal to or greater than the materials being bonded.

Variable Cure - cures completely at room tempera­ture or much more quickly at elevated temperatures.

Environmental Resistance - resists moisture, sunlight, salt spray, and thermal cycling.

Toughened - provides impact resistance and extreme durability through superior inhibition of crack propa­gation.

Temperature and Chemical Resistance - resists postbakes up to 204°C (400°F). Anti-corrosion processes including phosphatizing and ELPO or E-coat coatings do not affect the adhesive or its adhesion. Continuous immersion in solvents is not recommended.

 
Typical Properties* of Uncured Lord 320/322 Adhesive

Appearance

Lord 320

Off-White Paste

Lord 322

Gray Paste

Mixed

Gray Paste

Viscosity, cP
at 5 rpm @ 25°C (77° F)

3 - 10 x 1 05
 T-Bar Spindle D

4.5 - 20 x 105
 T-Bar Spindle E

N/A

Density
   g/m3
    lb/gal

1.54 - 1.55
12.5 - 12.9

 

1.24 - 1.27
0.33 - 10.54

N/A

Flash Point (closed cup)

>93°C (>200° F)

>93°C (>200°F)

>93°C (>200°F)

Total Reactive Solids, by Weight

100%

100%

100%

Working Time, 54g mass @ 24°C (77°F)

N/A

N/A

20 - 40 Minutes

General Purpose Mix Ratio
   by volume

1

1

N/A

Shelf Life from date of shipment at 25°C (77°F), unopened container

1 Year

1 Year

N/A

*Not to be used for specification purposes

†Mix ratio for primerless adhesion to SMC is 1:1.25 by weight.

Technical Data Sheet for Lord 320/322

For more information about Lord 320 contact Bergdahl Associates, Inc.

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Date issued: 07/05
v6 7/04