GAF LRF Adhesive O Part B 5 Gallon Bag Two-Part Polyurethane Foam Adhesive Component

Regular price $496.00

/
Shipping calculated at checkout.

GAF LRF Adhesive O Part B 5 Gallon Bag Two-Part Polyurethane Foam Adhesive Component


This is Part B of GAF LRF Adhesive O, a two-part polyurethane foam adhesive supplied in a 5-gallon bag-in-box. It is used with single-ply fleece-back membranes and applied on the substrate only. Part A and the Part B component must be used together with compatible GAF spray equipment.


Key Features:

  • Two-part system: LRF Adhesive O is a two-part polyurethane foam adhesive supplied as separate Part A and Part B components.
  • Fleece-back use: Designed for use with single-ply fleece-back membranes.
  • Substrate application: Applied on the substrate only for fleece-back adhered systems.
  • 5-gallon packaging: Supplied as a 5-gallon bag-in-box, the Part B component of the system.
  • Approved listings: FM Approved, UL Classified and Miami-Dade County Approved as listed for this item.
  • System options: Used in GAF TPO fleece-back adhered and PVC or PVC KEE fleece-back adhered system packages.

Specifications Table:

Specification Details
Brand GAF
Manufacturer model 418N
Sell unit 1 bag-in-box, 5 gal (Part B)
Product line GAF LRF Adhesive O
Profile / style Two-part polyurethane foam adhesive, Part B
Packaging 5 gal bag-in-box
Component Part B
Material Polyurethane foam adhesive
Intended use Adhering single-ply fleece-back membranes to the substrate
Approvals FM Approved; UL Classified; Miami-Dade County Approved
Weight 45 lb

Fit and Compatibility:

Part B must be used with GAF LRF Adhesive O Part A as a two-part system. It is intended for single-ply fleece-back membrane systems, including GAF TPO fleece-back adhered and PVC or PVC KEE fleece-back adhered assemblies. Application requires compatible spray equipment per the manufacturer's data sheets.


Frequently Asked Questions (FAQ):

Q: What is included with this item?
A: This item is the Part B component only, supplied in a 5-gallon bag-in-box; Part A must be purchased separately.


Q: What is LRF Adhesive O used for?
A: It is a two-part polyurethane foam adhesive used to adhere single-ply fleece-back membranes, applied on the substrate only.


Q: Is it approved for my area?
A: The item is listed as FM Approved, UL Classified and Miami-Dade County Approved; always confirm with your local building department and GAF data sheets.


Q: What systems can it be used in?
A: It is used in GAF TPO fleece-back adhered systems and PVC or PVC KEE fleece-back adhered systems.


Q: How is it applied?
A: It is applied with spray equipment as a two-part foam per the GAF LRF Adhesive O data sheet and safety data sheets.


Q: Does it come in other sizes?
A: The manufacturer offers 1.5-liter cartridges and 15-gallon drums in the product line, but this item is the 5-gallon bag-in-box Part B.


Expert Verdict — Reviewed by the SuperArbor Pro Desk

LRF Adhesive O Part B is the B-side of a two-part low-rise foam system for adhering fleece-back single-ply membranes, which can speed up large commercial jobs versus full-surface bonding. Use it only with the matching Part A and GAF-approved spray equipment, and follow the data sheet for substrate conditions and application rate. Confirm the FM, UL and Miami-Dade listings against your project specification before substitution. Store per the SDS and install per the manufacturer's instructions and local code.

Two-part polyurethane foam adhesives involve chemical components under pressure; read the safety data sheets, use appropriate respiratory and skin protection, and spray only with properly maintained equipment in ventilated conditions.


Order GAF LRF Adhesive O Part B in the 5-gallon bag-in-box for your fleece-back membrane system.

*Third Party Trademarks

All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.

Subject to Approval & Availability
All orders are reviewed before fulfillment. You are not charged until your order is approved and ready to ship — and you may cancel at any time before that at no cost.

Why choose us

The Arbor Way

• Lowest Prices. Easy Online Shopping. Fast Delivery.

• No lines. No holds. No Hassles.

• America's Largest Inventory Network for All Home Improvement Supplies Nationwide.

• We deliver - town to town, door to door. 


Recently viewed