Henkel Technomelt® PUR 4511B Hot Melt

Also known as Purmelt QR 4511B

SKU: LOCTITE 1564596

Manufacturer Part #: 1564596

Product Highlights

Henkel Technomelt PUR 4511B Hot Melt Overview

Technomelt PUR 4511B is a 100% solids, moisture-curing hot melt adhesive designed for excellent adhesion to challenging surfaces like polycarbonate and treated polypropylene. This reactive polyurethane hot melt delivers strong handling, bonds rapidly, and cures to provide excellent heat and water resistance. Ideal for bonding headlamp assemblies, it withstands stringent performance requirements. Its robust and consistent performance reduces failure risks, offering a faster cure speed and typically bubble-free material that minimizes bond failure.

Features and Benefits

  • Improved performance and bond strength over typical adhesives
  • Reduces subsequent warranty costs associated with headlamp replacement
  • Superior leak protection
  • Improved process efficiency
  • Can be used to meet a variety of automotive specifications


  • Series: Technomelt PUR 4511B
  • Type: Polyurethane Hot Melt (PUR)
  • Application: General Assembly, Lamp Bonding
  • Chemistry: Polyurethane
  • Appearance: Pigmented Black Solid
  • Solids: 100%
  • Recommended Working Temperature: 230°F to 280°F (110°C to 138°C)
  • Viscosity: Approx. 22,000 cps @ 250°F (121°C)
  • Shelf Life: 6 Months @ 77°F (25°C) - In a Tightly Sealed Container
  • Weight: Approx. 8.8 lb./gal.
  • Package: 5 Gallon Pail

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Hotmelt.com is an authorized distributor of Technomelt products from Henkel Adhesives.

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