Millennium PG-1 EF ECO₂

Driving the Future of Commercial Roofing

H.B. Fuller’s Millennium PG‑1 EF ECO₂ is redefining commercial roofing adhesives. This low‑rise, solvent-free, sprayable foam adhesive delivers proven bonding performance for roof insulation and fleeceback membranes.

Powered by first‑of‑its‑kind ECO₂ Driven™ technology, it uses naturally occurring atmospheric gases instead of HFCs or HFOs, helping reduce environmental impact while enhancing job‑site safety and efficiency.

  • Equipment‑Free, Portable Design: Applies quickly from dual‑canister kits, enabling faster installs and simplified workflows. No additional equipment needed.
  • Flexible & Consistent Spray Application: An innovative nozzle delivers spatter or ribbon spray patterns with reliable, repeatable coverage for efficient bonding of insulation and fleeceback membranes.
  • Fast Skin Time & Wide Substrate Compatibility: Typically sets in just 5–8 minutes, enhancing project speed and efficiency. Bonds to wood, steel, PolyISO, EPS, XPS, gypsum boards, mineral wool, and more.
  • Certified & Compliant: UL Classified, FM and Miami‑Dade Approved, compliant with all North American VOC‑regulated markets—including 2025 SCAQMD requirements.



ECO₂ Driven™ Propellant Technology

Millennium PG‑1 EF ECO₂ is powered by H.B. Fuller’s patented ECO₂ Driven™ technology.

Why it matters:

  • Uses naturally occurring atmospheric gases
  • Contains no high Global Warming Potential (GWP) blowing agents
  • Eliminates HFCs and HFOs entirely
  • Delivers consistent spray performance
  • Supports compliance with current and future regulations

Bottom line: Sustainability without sacrificing speed, strength, or productivity.




Why Choose Adhered Roofing Systems?

Adhered systems outperform mechanical fasteners in critical ways. By creating a full surface bond, adhesives eliminate deck penetration—removing common risks like thermal bridging, fastener corrosion, and leaks.




Get Started with Millennium PG‑1 EF ECO₂

Install faster. Work cleaner. Be ready for evolving regulations.


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