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Urethane Adhesives
Your solution to repairing concrete and providing flexible bonds.
Strong bonds that bend but don’t break
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Two-part urethane structural adhesives are different from one-part moisture-curing urethane sealants. Urethane structural adhesives are two-part formulations that react when mixed and do not require moisture to cure. They are relatively flexible when cured and therefore tend to have excellent impact and vibration resistance. Urethane structural adhesives bond well to most plastics, wood, concrete, rubber and carbon fiber, but they tend to have reduced resistance to solvents and high temperatures. The combination of flexibility and the ability to form strong bonds to a variety of substrates makes two-component urethane structural adhesives an excellent choice for joining dissimilar metals and materials.
Key benefits of PUR adhesives
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Material BondingUrethanes adhere to a wide variety of substrates, including wood, concrete, rubber and many plastics
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Noise, Vibration & HarshnessFlexibility allows urethanes to absorb shocks and thermal expansion differences between dissimilar materials
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Improved AestheticsUrethanes bond different substrates without the bond line being visible through the substrate
Featured Urethane Adhesive Products
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A two-part urethane adhesive that delivers extremely tough, flexible bonds.
- Designed for vertical and other applications that require no slumping or sagging of the adhesive bead
- Low-temperature flexibility
- Flexible adhesive that is capable of bonding dissimilar substrates, including composites, SMC, FRP, ceramic, and many plastics
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A quick-curing, two-component polyurethane adhesive that is designed to repair cracks, spalls and breaks in concrete, masonry and stone.
- Hardens in as little as five minutes
- Low viscosity and self-levels for horizontal installations
- Cures to any depth without cracking
- Allows for sanding refinement and smooth finishes
- Dispenses with a regular caulk gun or Duo-Pak cartridge system
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(see pages 17-18)3M Urethane Adhesives Selection GuideDownload product selection guide (PDF, 6.5 MB)3M™ Concrete Repair brochureDownload brochure (PDF, 1.37 MB)Joining & Bonding of Composite Parts – The Structural Adhesive Advantage
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Frequently Asked Questions (FAQs)
Our 3M experts answer some FAQs about structural adhesives.
Contact us for more information on urethane adhesivesWe're here to help
Need help finding the right epoxy adhesive for your project? Contact us if you need product, technical or application advice, or want to collaborate with a 3M technical specialist.
