TECHNOMELT PUR 508

Known as Purmelt R-508

Features and Benefits

Available in:

  • barrel w/lid

  • pail

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.
  • Forms a tough, strong and virtually thermoset polymer
  • Aggressive tack
  • Has short to medium open time and high green strength
  • Suitable for porous substrates
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Documents and Downloads

Safety
Data Sheets
and RoHs
TECHNOMELT PUR 508 542663 en-US
IDH: 542663

Size Case: barrel w/lid

TECHNOMELT PUR 508 840433 en-US
IDH: 840433

Size Case: pail

Technical Information

% Solids 100
Application Method Extrusion, Hot Applied, Roll-Coat, Spray
Applications Structural Bonding
Color White: Off White
Cure Type Moisture Cure
Key Characteristics Open Time: Medium Open Time, Reactive, Strength: Green Strength (Sticky), Toughened, Urethane Based
Melt Viscosity 12000 mPa·s
Melt Viscosity Temperature 249 °F
Number of Components 1 Part
Open Time 40 sec.
Shelf Life Time 3 mon.
Storage Temperature 60 - 80 °F
Substrates Fiberboard, Fiberglass Reinforced Plastic (FRP), Foam, Lauan, Particle Board, Plastic, Plywood, Polyurethane Foam, Wood
Technology Hot Melt, Polyurethane
Viscosity 12000 mPa.s (cP) Brookfield
Viscosity (#7sp/20/rpm) 12000 mPa.s (cP) Brookfield
Viscosity Temperature 249 °F