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Lord 7540
Equal-Mix, Urethane Adhesive
Lord 7540 has been discontinued because Lord has been experiencing issues procuring a key ingredient.  Lord has suggested Lord 7100 and Lord 7150 as replacements to the impacted products.  They have verified, by laboratory testing, that the 7100 and 7150 meet or exceed the performance characteristics of Lord 7540.

Description
Lord® 7540 is a two-component, equal-mix urethane adhesive used to bond polycarbonate and other plastic substrates. It cures at room temperature, or can be accelerated with heat.

Features and Benefits
Primerless Adhesion - reduces material and labor cost by eliminating the need to prime many difficult to bond plastics.

Contains No Solvent - 100% solids.

Will Not Craze Plastic  - forms structural bonds to plastics such as polycarbonate without crazing or attacking the plastic, thus maintaining the integrity of the substrate.

Chemically Resistant - resists solvents once it has cured. Painting and most cleaning processes do not affect bond strength.

Environmental Resistance - resists sunlight, weathering, humidity and salt spray.

Impact Resistance - provides impact resistance at temperatures ranging from -34°C to 116°C (-30°F to 240°F).

Variable Cure - cures completely at room temperature or more quickly with heat.

 
Typical Properties* of Lord 7540 Adhesive

 

 Lord 7540A

Lord 7540B

Viscosity, cP
  @ 22°C (72°F)

 70,000 - 250,000

8,500 - 20,000

Density
   Kilograms/Liter

 1.43

1.22

lb/gal

 11.9

10.2

Flash Point, closed cup

 >93°C (>200°F)

>93°C (>200°F)

Mix Ratio
   by volume

 1

1
Shelf Life 6 months from date of shipment, unopened container, storage at 21°C - 27°C (70°F - 80°F).

*Data is typical and not to be used for specification purposes*Data is typical and not to be used for specification purposes.

Technical Data Sheet for Lord 7540 adobe.gif (112 bytes)

For more information about Lord 7540 contact Bergdahl Associates, Inc.

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Date issued: 07/05