Description
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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