TECHNOMELT® PUR 508
Known as Purmelt R-508
Features and Benefits
Polyurethane reactive hot melt adhesive that is moisture-cured to form a tough, strong and virtually thermoset polymer.
TECHNOMELT® PUR 508 is a polyurethane reactive hot melt adhesive that is moisture-cured to form a tough, strong and virtually thermoset polymer. It has aggressive tack, short to medium open time and high green strength. Used for lamination and assembly of sandwich panel elements of wood, lauan, fiberboard, particleboard, plywood, FRP, EPS foam, PU foam and surface-treated metals and soft plastics.
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Technical Information
| Application method | Extrusion, Hot applied, Roll-coat, Spray |
| Applications | Structural bonding |
| Color | Off white |
| Cure type | Moisture cure |
| Key characteristics | Open time: medium open time, Reactive, Strength: green strength (sticky), Toughened, Urethane based |
| Melt viscosity, @ 121.0 °C | 12000.0 mPa·s |
| Number of components | 1 part |
| Open time | 40.0 sec. |
| Recommended for use with | Fiberboard, Fiberglass reinforced plastic (FRP), Foam, Lauan, Particle board, Plastic, Plywood, Polyurethane foam, Wood |
TECHNOMELT® PUR 508
Polyurethane reactive hot melt adhesive that is moisture-cured to form a tough, strong and virtually thermoset polymer.