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The standard for strength, durability and outdoor weathering
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‘Epoxy’ is often used as a generic term for a structural adhesive, but epoxy adhesives are actually a very specific class of structural adhesives. These chemistries are durable in demanding conditions, including not only outdoor weathering but also many solvents and other conditions.
One-Part Epoxies – One-part epoxy adhesives eliminate metering and mixing but require heat to cure, with newer formulations curing at lower temperatures than older versions.
Two-Part Epoxies – Two-part epoxy adhesives begin curing when the two components are mixed and offer different performance characteristics depending on the formulation.
Epoxies have the greatest strength and durability of all structural adhesives
Epoxies have the greatest strength and durability of all structural adhesives
Structural adhesives bond dissimilar materials and also provide insulation to resist corrosion when bonding two different metals
Structural adhesives bond dissimilar materials and also provide insulation to resist corrosion when bonding two different metals
Different chemistries provide a variety of surface preparation, open time and strength-build times so you can find the best options for your process
Different chemistries provide a variety of surface preparation, open time and strength-build times so you can find the best options for your process
Epoxy bonds have exceptional resistance to shock, vibration and impact loads
Epoxy bonds have exceptional resistance to shock, vibration and impact loads
Adhering to new materials and distributing stress along the entire bond area helps designers use thinner and lighter materials
Adhering to new materials and distributing stress along the entire bond area helps designers use thinner and lighter materials
Vibration resistance reduces opportunities for unwanted noise
Vibration resistance reduces opportunities for unwanted noise
Structural adhesives provide better product appearance through invisible joints and smooth bond lines
Structural adhesives provide better product appearance through invisible joints and smooth bond lines
Structural adhesives provide a continuous bond line to prevent the migration of fluids, dust and dirt
Structural adhesives provide a continuous bond line to prevent the migration of fluids, dust and dirt
The ability of structural adhesives to bond a wide variety of substrates allows the freedom to design for the best materials available
The ability of structural adhesives to bond a wide variety of substrates allows the freedom to design for the best materials available
Benefits, Applications and Products of Epoxy Adhesives
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Carbon fiber composite bonding for drilling platforms
3M™ Scotch-Weld™ Toughened Epoxy Adhesive has been used to bond carbon fiber while assembling lightweight drilling platform equipment. The adhesive creates secure bonds between carbon fiber and stainless steel, and field tests have shown it to be resistant to dynamic loading, crude oil, hydrocarbon mud and fragments of rock mixture flowing at 80 to 100ºC.
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White paper: Why Use a Structural Adhesive? (PDF, 585 KB)
This white paper explores some of the advantages structural adhesives offer over mechanical fasteners, including keeping substrates intact and full-strength, spreading stress over the whole bond to improve fatigue resistance, and better aesthetics with no protrusions or refinishing. Structural adhesives play an important role in the move to lighter composite materials, which often cannot be drilled or welded.
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White paper: Choosing the Right Structural Adhesive (PDF, 698 KB)
This white paper discusses some advantages of structural adhesives and preliminary considerations to think about so you are better prepared when you talk to an expert. These topics include end-use conditions and stresses along with the performance characteristics and handling and processing characteristics typical of the different adhesive families -
Explore Epoxy Adhesive Products
3M covers the spectrum of epoxy structural adhesives. We offer both traditional high-heat one-part chemistries and newer versions that cure at lower temperatures. We also have a wide variety of rigid, flexible and toughened two-part epoxies with a variety of specific properties.
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Find structural adhesives resources including tech data sheets, whitepapers, webinars, product guides, bulletins.
3M™ Scotch-Weld™ Epoxy Adhesive: Strong, impact-resistant, durable bonds
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Find written and video responses to structural adhesives FAQs.
Need help finding the right product for your project? Contact us if you need product, technical or application advice or want to collaborate with a 3M technical specialist, or give us a call at 1-800-831-0658.
Need help finding the right product for your project? Contact us if you need product, technical or application advice or want to collaborate with a 3M technical specialist, or give us a call at 1-800-831-0658.
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