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TECHNOMELT® PUR 513C – Polyurethane Reactive Hot Melt Adhesive – Automotive Interior Panel Bonding

  • Item Name: TECHNOMELT PUR 513C
  • Manufacturer: Henkel
  • Product Category: Hot Melt Adhesive
  • Technologies: One-Component Polyurethane Reactive Hot Melt
  • Applications: Lamination of sandwich panel elements in furniture and buildings (suitable for wood, lauan, fiberboard, particleboard, plywood, FRP, EPS foam, PU foam, and surface-treated metals)
  • Color: Off white, Lavender
  • Cure Type: Moisture cure
  • Package Size: 55-gallon drums
  • Shelf Life: 6 months

1. Product Overview

TECHNOMELT PUR 513C is a one-component polyurethane reactive (PUR) hotmelt adhesive designed for furniture and building applications. It provides aggressive tack, long open time, and high green strength, curing via moisture reaction into a strong thermoset polymer.

2. Applications

  • Used for laminating sandwich panel elements made of:
    • Wood, lauan, fiberboard, particleboard, plywood
    • FRP, EPS foam, PU foam
    • Surface-treated metals
  • Can be applied via roll coating, extrusion, swirl spray, or reactivation.
  • Suitable for substrates with good adhesion properties when properly prepared.

3. Typical Properties

Property Value
Technology One-Component Polyurethane Reactive Hotmelt
Solids Content (%) 100
Viscosity (250 °F) 12,000 cP
Open Time (minutes) ~3-4 (varies by substrate)
Working Temperature 250 – 275°F (avoid above 300°F)
Shelf Life 6 months (unopened)

4. Processing & Application

  • Surface Preparation: Ensure surfaces are free of oil, grease, dust, and contaminants. Metals must be conversion coated or primed for optimal adhesion.
  • Application Methods: Roll coat, extrusion, swirl spray, or reactivation with deposition rates of:
    • 8-12 g/sq ft for roll coating
    • 6-10 g/sq ft for extrusion/spray
  • Curing: Moisture-reactive curing from substrate or ambient humidity. High temperatures accelerate curing.

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