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Formulated to meet specific 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.
Resources and Products of Two-Part Epoxy Adhesives
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This paper discusses some of the advantages of adhesives and reasons industrial assembly businesses are looking to them as a replacement for some or all mechanical fasteners. In addition to describing the main types of structural adhesives it provides a brief history of epoxy adhesives and discusses adhesive selection, joint configuration, surface preparation and processing considerations as well as joint testing and common failure modes.
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3M offers rigid, flexible and toughened two-part epoxies to meet the different extremes customers need to overcome. Explore more options to find one that suits your needs.
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Find written and video responses to structural adhesives FAQs.
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3M™ Scotch-Weld™ Epoxy Adhesive DP420NS
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3M™ Scotch-Weld™ Epoxy Adhesive DP420NS is appropriate for applications that will face tough environmental challenges.
Features
- High peel and shear strength maintains lasting bond at high and low temperatures
- Toughened for impact and fatigue resistance
- 20 minute work life provides time for positioning and adjustment
- Non-sag formulation ensures adhesive stays where applied
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3M™ Scotch-Weld™ Epoxy Adhesive 2216
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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, for example 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
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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 +971 4 3670 777.
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 +971 4 3670 777.
