Structural Insulated Panels (SIPs) are revolutionizing modern construction with their superior strength, insulation, and energy efficiency. However, the integrity of SIPs depends on high-performance adhesives that ensure durability, airtight seals, and long-term stability.
FSI’s FoamNail® and OnePart™ polyurethane adhesives are engineered to meet these demands, making them the ideal choice for SIP manufacturers and builders.

Why FSI Adhesives for SIPs?
Strong, Lasting Bond
FSI’s FoamNail® two-part adhesive and OnePart™ moisture-cure adhesive provide exceptional adhesion, securing the SIP’s rigid foam core to structural facings such as OSB, plywood, or metal. These adhesives create a permanent, high-strength bond that withstands stress, moisture, and temperature fluctuations.
Enhanced Structural Integrity
By ensuring a tight bond between the SIP’s components, FoamNail® and OnePart™ contribute to the overall load-bearing strength of the panel. This results in a more stable and resilient building envelope, crucial for both residential and commercial construction.
Faster, More Efficient Assembly
- FoamNail® cures within minutes, allowing for quick production cycles and rapid on-site installation.
- FSI can customize cure speed based on specific manufacturing or jobsite requirements, ensuring optimal efficiency.
- OnePart™ offers a simplified application process, requiring only moisture in the air to cure, reducing the need for additional steps.
Eco-Friendly & Safe
Both FoamNail® and OnePart™ adhesives are VOC-exempt and formaldehyde-free, meaning they contribute to healthier indoor air quality and comply with stringent environmental standards. Additionally, they do not contribute to global warming or ozone depletion, making them a sustainable choice for eco-conscious builders.
Versatile Applications Beyond SIPs
FSI’s industrial-strength polyurethane adhesives aren’t just for SIPs. They are also widely used for:
- Adhering studs to drywall or exterior sheathing
- Laminating EPS boards for motorhome walls
- Laminated entry and garage doors
- On-site SIP assembly
Partner with FSI for High-Performance Adhesives
With decades of experience in polyurethane innovation, FSI provides customized adhesive solutions to fit your exact needs. Whether you’re manufacturing SIPs in a controlled facility or assembling panels on-site, FoamNail® and OnePart™ deliver the strength, efficiency, and environmental responsibility modern construction demands.
Want to learn more? Contact FSI today to discuss how our adhesives can optimize your SIP production and installation process.