GAF LRF Adhesive XF – Part B, Low-Rise Polyurethane Foam Roofing Adhesive

Regular price $564.30

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LRF Adhesive XF Part B Roofing Adhesive

Two-component, construction-grade low-rise polyurethane foam adhesive for roofing systems. Part B canister works with Part A to bond roof insulations, vapor retarders, cover boards, and fleece-back single-ply membranes to compatible substrates.


Key Features:

  • Fast Application: Pre-pressurized disposable canisters enable quicker membrane installation than bucket-and-roller adhesives
  • Strong Bonding: Adheres roof insulation, vapor retarders, cover boards, and fleece-back single-ply membranes
  • Professional Grade: Low-rise polyurethane foam formulated for roofing applications
  • Simplified Setup: Uses a two-component disposable foam applicator system
  • Quality Assurance: FM Approved for trusted performance

Specifications Table:

Specification Details
Product Name LRF Adhesive XF - Part B
Brand GAF
Adhesive Type Low-rise polyurethane foam roofing adhesive
System Two-component (Part A and Part B)
Dispensing Method Pre-pressurized disposable cylinders with two-component disposable foam applicator
Applications Adheres most roof insulations, vapor retarders, cover boards, and fleece-back single-ply membranes to compatible substrates
Installation Speed Faster than traditional bucket-and-roller adhesives
Standards FM Approved
Item Weight 50 lb
Manufacturer Number 419W
Product Number GAFLRFADHXFB
Unit of Measure CST

Frequently Asked Questions (FAQ):

Q: Is this a standalone adhesive?
A: No. This is Part B of a two-component system and must be used with Part A and the compatible foam applicator.


Q: What materials can it bond?
A: Most roof insulations, vapor retarders, cover boards, and fleece-back single-ply membranes to compatible substrates.


Q: How is it dispensed?
A: From pre-pressurized disposable cylinders through a two-component disposable foam applicator.


Q: Is it suitable for commercial roofing?
A: Yes. It is a construction-grade, FM Approved roofing adhesive designed for professional applications.


Q: Does it reduce installation time?
A: Yes. It enables faster membrane installation compared to traditional bucket-and-roller adhesives.


Seamless Strength for Modern Roofscapes

This adhesive brings a refined efficiency to the rooftop—clean, swift, and impeccably strong. Its low-rise foam profile creates a smooth, cohesive plane that elevates the finish of single-ply membranes. Pair it with precision-applied insulation boards to craft a streamlined, contemporary silhouette. It’s an essential foundation for luxurious, high-performance roofing design.


Choose GAF LRF Adhesive XF Part B to accelerate installation and achieve a reliable, professional-grade bond across your roofing system.

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