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 and rubber, 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 bonding dissimilar materials.
This white paper discusses the features and benefits of structural adhesives for bonding polymer matrix composites, both thermoset and thermoplastic fiber-reinforced plastics, to themselves and to other materials. It also covers advantages of adhesives specific to composite materials, typical assemblies and applications for composite materials, selecting the appropriate adhesive to maximize your assembly and testing and prototyping for bonding composite parts.
This brochure describes a two-part urethane repair option for fixing cracks and spalling in concrete floors. Rather than taking the floor out of service, this product hardens in as little as five minutes and can be traversed with a forklift in as few as 15 minutes. It hardens to any depth and can be applied with a common caulking gun.
3M urethane structural adhesives add flexibility when you need more than just strength. These two-part adhesives bond well to most plastics, wood, concrete and rubber, making them excellent candidates when you’re bonding dissimilar substrates. Explore some options.
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