MMAs
Methyl Methacrylate Adhesives
Bostik SAF & FIT methacrylate structural adhesives provide bonding solutions for metals, plastics, composites, and dissimilar materials across a wide range of industrial applications.
Structural Bonding for Different Application Requirements
Bostik SAF & FIT methacrylate adhesives offer a range of formulations for structural bonding applications involving metals, plastics, composites, and dissimilar materials. Different options provide varying levels of flexibility, open time, modulus, and other performance characteristics to match specific assembly and production requirements.
Key Bonding Characteristics
- Bonding of metals, plastics and composites
- Options for dissimilar material assemblies
- Different flexibility levels and working times
- Non-sag formulations for vertical applications
- Minimal surface preparation for many substrates
Key Benefits at a Glance
Wide Service Temperature range
Performance across a service temperature range from -40°C to 150°C, depending on the formulation.
Non-Sag Application
Non-sag formulations remain in position after application, helping maintain the bond line on vertical and overhead surfaces.
Flexibility & Impact Resistance
Flexible formulations help accommodate movement and provide impact resistance, including in dissimilar-material assemblies.
Multiple Open & Curing Times
Different formulations allow working and curing times to be selected according to application and process requirements.
How SAF & FIT Adhesives Perform
Explore four key characteristics of Bostik SAF & FIT methacrylate adhesives and how they influence application and bond performance.
High Flow & Thixotropy
SAF & FIT adhesives are formulated with rheological and thixotropic properties that support dispensing and shaping while helping the adhesive remain in position after application. FIT formulations are also designed for gap-filling applications.
- Controlled application
- Non-sag behavior
- Gap-filling capability
Impact Resistance
Flexibility and toughness contribute to how a structural adhesive responds when the bonded assembly is exposed to impact and movement. SAF formulations provide different levels of elongation and mechanical performance depending on the application requirements.
- Impact resistance
- Flexibility
- Permanent toughness
Elongation & Flexibility
The SAF range includes formulations with different levels of elongation and modulus, providing options for applications requiring different degrees of flexibility. This is particularly relevant when bonding dissimilar materials that may respond differently to movement or temperature changes.
- Different flexibility levels
- Dissimilar-material bonding
- Accommodation of differential thermal expansion
Reactivity & Mixing
The interaction between the adhesive components determines how the material develops during mixing and curing. Selected SAF & FIT formulations also use contrasting component colors, providing a visual indication of the mixing process.
- Visual mixing control
- Consistent mixing
- Controlled application
Advantages of MMA Structural Adhesives Compared to Other Bonding Technologies
See how MMA structural adhesives compare with common joining and bonding methods.
Mechanical Fasteners
- More uniform stress distribution across the bonded area
- No holes required in the substrates
- Reduced need for additional hardware
- Gap-filling capability
- Cleaner finished appearance
Welding
- Joins dissimilar materials that may not be suitable for welding
- No heat-affected zone from the bonding process
- Reduced need for post-weld finishing
- Gap-filling capability
- Cleaner finished appearance
Polyurethanes
- Faster curing options for shorter assembly cycles
- Fast strength development for structural bonding
- Different open times to match production requirements
- Non-sag and gap-filling formulations
- Broad substrate compatibility
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Have a Question About Your Application?
Adhesive selection depends on the substrates, assembly requirements, working time, and production process. Contact our team for more information about Bostik SAF & FIT structural adhesives.