Johns Manville Two-Part Urethane Insulation Adhesive Canister

JM Two-Part Urethane Insulation Adhesive (UIA) is a self-contained, low-rise foam adhesive for bonding fleece-backed single-ply membranes to insulation and attaching insulation boards to the deck or to each other. Available in 5 gal and 15 gal kits, each sold as Part 1 and Part 2 components. Use with compatible JM insulations, cover boards and fleece-backed membranes.

Key Features:

• Two-part low-rise foam: Self-contained two-component polyurethane adhesive dispenses as a low-rise foam.
• Membrane and board bonding: Attaches fleece-backed membranes to insulation and insulation boards to the deck or to other boards.
• Broad substrate list: Compatible with fleece-backed TPO and PVC, polyisocyanurate, HD wood fiber, perlite and more.
• Deck versatility: Bonds to gypsum, concrete, treated plywood and cementitious wood fiber plank substrates.
• Invinsa compatible: Approved for use with Invinsa Roof Board and other JM cover boards.
• Two kit sizes: Offered in 5 gal and 15 gal Part 1 / Part 2 kits to match job size.

Specifications Table:

Coverage & How Much You Need:

Coverage per kit depends on bead spacing and application rate and is not stated in the sources; follow the printed application instructions for bead patterns by wind-uplift zone.

Fit and Compatibility:

Use with fleece-backed TPO and PVC membranes, polyisocyanurate, HD wood fiber, perlite, Invinsa Roof Board, gypsum, concrete, treated plywood and cementitious wood fiber plank. Part 1 and Part 2 must be used together as a matched two-component kit.

Frequently Asked Questions (FAQ):

Q: What is included in the sell unit?
A: Each item is one component: Part 1 (dark amber) or Part 2 (red) in 5 gal or 15 gal; both parts are required to produce the adhesive.

Q: What can it bond?
A: It bonds fleece-backed single-ply membranes to insulation and insulation or cover boards to the roof deck or to each other.

Q: Which substrates are compatible?
A: Compatible substrates include fleece-backed TPO and PVC, polyisocyanurate, HD wood fiber, perlite, Invinsa Roof Board, gypsum, concrete, treated plywood and cementitious wood fiber plank.

Q: How is it dispensed?
A: It is a self-contained two-part canister system that applies as a low-rise foam.

Q: Which kit size should I choose?
A: Choose 5 gal kits for small repairs and 15 gal kits for larger adhesion jobs to reduce canister changes.

Q: Is coverage stated?
A: Coverage is not stated in the product sources; follow the manufacturer’s application instructions.

Expert Verdict Reviewed by the SuperArbor Pro Desk

Low-rise two-part urethane adhesive is the standard choice for adhering insulation on decks where hot asphalt or mechanical attachment is impractical. Keep Part 1 and Part 2 matched from the same kit, shake and condition the canisters per the printed instructions, and adjust bead spacing for the project’s wind-uplift zone. Store canisters above the recommended temperature range so yield and foam rise are not compromised.

Two-component urethane adhesives are pressurized and reactive; wear gloves and eye protection, ventilate the work area and follow the safety data sheet during dispensing.

Order JM Two-Part Urethane Insulation Adhesive canisters for fast, reliable insulation and membrane attachment.