LORD 521

LORD 521
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LORD® 521 is an acrylic adhesive which offers a long working time. It will bond a variety of plastics and prepared metals.

LORD® 521 Acrylic Adhesive with LORD® Accelerator 19 is a general purpose, room temperature curing adhesive that is used for bonding prepared metals and plastics. It has long working times, slow cure, and medium viscosity.

Using Lord 521 Acrylic Adhesive Surface Preparation: All substrates to be bonded must be free of grease, oil, mold release agents and other contaminants. Thermoset plastics may require mechanical abrasion. Metals may be abraded and solvent wiped, primed or prepared chemically by some other method, prior to bonding.

Typical Properties

Appearance Amber syrup
Viscosity, cP @ 77°F (25°C) 25,000 - 75,000
Density lb/gal (Kgs/m3) 8.1 - 8.6 (971 - 1031)
Flash Point, closed cup 3°C (37°F)
Working Time 20 - 30 Minutes
Handleable Bonds @ 25°C (77°F) 40 - 50 Minutes
Mix Ratio by volume 10 Parts
Shelf Life 6 Months
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