Acrylic adhesives for superior bonding of your most innovative designs
Multi-substrate bonding for designers, engineers and manufacturers who need efficient bonding and greater design flexibility.
Faster and easier with premium bonding strength
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When your project requires reliable long-term bonding of dissimilar substrates, 3M™ Scotch-Weld™ Structural Acrylic Adhesives significantly improve throughput and productivity. These adhesives can withstand extreme temperatures, build strength rapidly and resist impact and peel.
Created for designers, engineers and manufacturers who need efficient bonding and greater design flexibility, 3M™ Scotch-Weld™ Structural Acrylic Adhesives are suitable for bonding most plastics, aluminum, steel, oily metal surfaces. Fast and easy to apply, our acrylic adhesives provide bonds that replace metal fasteners for both static and dynamic loads and enable improved aesthetics.
3M™ Scotch-Weld™ Structural Acrylic Adhesives also offer low-odor and non-flammable formulations to help where odors can be annoying or where flammability is a concern.
Advantages of Acrylic Adhesives
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Fast rates of strength build
Achieve higher throughput and increase productivity – our structural acrylic adhesives build strength faster than competitor products.
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Higher impact resistance
Make your products more durable with structural acrylic adhesives that demonstrate much higher impact resistance than ordinary acrylic adhesives.
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Longer shelf life and easier storage
Keep costs down and improve logistics by using adhesives that have a longer shelf life than competitor products and don’t require refrigeration.
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Low-odor adhesives
Provide a safer working environment with our low-odor acrylic adhesive products get the job done with fewer odors and less flammability than traditional acrylic adhesives.
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3M™ Scotch-Weld™ Metal Bonder takes on your most extreme applications with ease
- Adheres well to most metals, including steel and those with an oily coating
- Handles temperatures up to 400° F (204° C) for one hour minimum for powder coating operations
- Eliminates deformation of metal through the welding process
- Unlike rivets, bonds without leaving a potential gap
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3M™ Scotch-Weld™ Metal Bonder Acrylic Adhesive DP8407NS tackle pre- and post-powder-coat processes, with high-strength solutions that offer:
- High-peel performance
- Impact strength as much as 3x that of ordinary acrylic adhesives
- Heat and humidity resistance
- Bondline control 250μm
- Six minute worklife at 75 F
- As little as 10 minutes to structural strength
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- Low odor and non-flammable properties for a safer working environment compared to typical acrylic adhesives
- Durable bond with excellent shear, peel and high impact strength
- Bonds difficult surfaces such as powder coats and most plastics
- Very fast rate of cure
- Range of open times available
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- Creates strong bond on low surface energy (LSE) plastics such as polyolefin with minimal or no surface prep required
- Delivers non-sag formulation so adhesive stays where when applied
- Resists many chemicals, water and humidity
- Formulated to bond multi-material assemblies using thermoplastics, composites and metals
See 3M™ Scotch-Weld™ Structural Acrylic Adhesives in Action
Which adhesives are right for you?
These questions can help narrow down your adhesive choices.
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What materials will be bonded?
Structural adhesives work by adhering to the top surface of the bonded parts, so it’s important to know the exact material and condition on those surfaces. For metals, will the adhesive be applied to bare metal, or will there be a paint or coating on the surface? For plastics, exactly which base resin? Could there be residual release agents on the surfaces used for mold release?
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What is the preferred cure speed?
The chosen structural adhesive must have enough work life (open time, pot life) to allow proper mixing and application of the adhesive and assembling of the bonded parts. Smaller assemblies or shorter cycle time production processes may be able to use a faster curing adhesive with a work life of only five minutes or less, while larger assemblies that require alignment and clamping will probably need a work life of 20 minutes or more.
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What surface preparation will be required?
Structural adhesives generally prefer clean, rough, dry surfaces for highest bond strength. This typically means either light abrasion and solvent cleaning of the surface, or solvent cleaning followed by chemical etching or applying a primer. Adhesion tests should be performed to determine the adequate surface preparation for a specific application.
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What type of joints are best for structural adhesives?
Joint designs that put the adhesive bond under shear, tension, or compression forces will provide the highest strength. Designs that tend to apply peel or cleavage forces to the adhesive, where the applied stresses are not distributed over the entire bond area, will have lower bond strength, but the bond may still be sufficient for the needs of the application. In addition, optimum bond line thickness typically ranges from 0.005" to 0.020". The adhesive qualification process should always include testing of prototype assemblies to ensure the adhesive will provide enough performance.
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How are structural adhesives used and applied?
Structural adhesives come in many forms, including low viscosity liquids and non-sag pastes, one- and two-component formulations, short and long work lives, and various package sizes and shapes. Most two-part structural adhesives are available in both bulk containers and convenient, easy-to-use cartridge mixing systems.
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What are the general characteristics of the different types of structural adhesives?
All structural adhesives provide at least 1,000 psi of overlap shear strength to aluminum, but the different adhesive chemistries have various properties:
Key Markets & Applications
For 3M™ Scotch-Weld™ Structural Adhesives
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Appliances
- Simplify operations by bonding after powdercoating
- Eliminate the challenge of bonding rigid to flexible substrates
- Noise damping
- Reduce complexity-bond and seal glass to metal in one ste
Key Products:
DP8810NS, DP125 Gray, TS230, TL42 -
HVAC
- Floor panel and drain pan to frame
- Side wall panel attachment to frame
- Stiffener to panel
Key Products:
DP8425NS -
Metalworking
- High strength and durability
- Reduced surface preparation before bonding, and no grinding after bonding
- Save weight and improve appearance with adhesives instead of welds or rivets
Key Products:
DP8407NS -
Plastic, Composite & Rubber
- Bonding of low surface energy plastics without priming
- Impact resistant composite bonding
Key Products:
DP8010 Blue, DP6310NS, TS230, PR100 -
Signage
- One adhesive to bond all of your substrates
- Strong formulations and thin bond lines
- Weather resistance
- UL recognition
Key Products:
DP8805NS, DP8405NS, DP100 Plus -
Specialty Vehicle
- Weight reduction
- High strength
- Vibration & fatigue resistance
Key Products:
TL42 -
Transportation
- Metal skin to metal frame
- Composite cab assembly
- Frame assembly
- Floor panel bonding
- Exterior panel bonding
- Roof bonding
More Information on 3M™ Scotch-Weld™ Structural Acrylic Adhesives
Connect With a 3M Adhesives Specialist
We're here to help.
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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Fast rates of strength build
Higher impact resistance
Longer shelf life and easier storage
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