- Overview
- PRODUCTS
- 3M™ VHB™ Tapes
- 3M™ Scotch-Weld™ Structural Adhesives
- Adhesive Transfer Tapes & Double Coated Tapes
- Spray Adhesives
- Reclosable Fasteners
- Adhesive Sealants
- Foam Tapes
- Hot Melt Adhesives
- View All Products
- APPLICATIONS
- Large Surface Lamination
- Sealing Encapsulating
- Small Joint Assembly
- Gasket Attachment
- Mounting Trim Attachment
- Panel-to-frame/Stiffener-to-Panel
- View All Applications
- INDUSTRIES
- RESOURCES
- SUPPORT
Two-Part Epoxy Adhesives
Strong formulations that can replace weld and mechanical fastening.
Formulations that meet specific strength and performance criteria
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Two-part epoxy adhesives range in performance from rigid to flexible, including some toughened formulations designed for fatigue resistance. Like one-part epoxy adhesives, they are resistant to extremes of heat, cold, humidity, many solvents and other conditions. Different formulations of two-part epoxies deliver different performance for your applications:
- Rigid epoxies have higher tensile strength at lower elongations for greater long-term holding power.
- Flexible epoxies have lower tensile strength at higher elongations for greater capability to withstand differential movement of bonded parts. They also have higher peel strength and higher adhesion to most engineered plastics.
- Toughened epoxies have higher tensile strength at lower elongations for fatigue resistance and are best suited for dynamic stresses. They have long-term holding power, high peel strength and exceptionally high resistance against shock, vibration and impact loads.
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3M™ Scotch-Weld Epoxy Adhesive DP100 Plus is a very flexible adhesive that provides strong, permanent bond even under vibration and impact.
Other features:
- Fast 4-mine work life with handing strength in 20 minutes at room temperature
- Good high shear and peel strength
- Flexible when cured, making it a good choice for bonding dissimilar surfaces
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3M™ Scotch-Weld™ Epoxy Adhesive 2216 is designed for applications where high performance and flexible bonds are required.
Recommended Applications
- Cryogenic bonding applications where bonded agents might experience temperature extremes
- Potting where expansion and thermal changes may occur, such as solar panels and appliance or construction applications
- Military bonding applications, such as bonding parts on movable transports
- General aerospace and transportation bonding where vibrations and movement are common
- Bonding ceramic, most plastics and glass to metal
- Attaching various substrates to masonry and stone
Featured Resources
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(see pages 10-15)3M Epoxy Adhesives Selection GuideDownload product selection guide (PDF, 6.5 MB)3M Structural Two-Part Epoxy Adhesive Performance vs. Mechanical Fasteners
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Frequently Asked Questions (FAQs)
Our 3M experts answer some FAQs about structural adhesives.
We'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.
