Methyl Methacrylate Adhesives are two part structural strength adhesives suited for applications that demand dynamic load bearing, high impact and high vibration resistance. Their ability to bond a wide range of substrates including Plastics, Composites, Metals among many others make them the adhesive of choice for applications in industries such as Automotive, Marine, Wind, Composite, Coach and others. MMAs can cure very rapidly and coupled with their tolerance for off mixing ratio, they offer strategic advantages over other two component adhesives such as epoxies.

Methyl Methacrylate Adhesives (MMA)

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Crestabond M1 Series Methacrylate Adhesives

M1 series of Crestabond methacrylate adhesives are 10:1 mix ratio structural grade medium to high strength adhesives with high elongation and high gap fill upto 50mm. They are non-sag on vertical surfaces.

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Crestabond M7 Series Methacrylate Adhesives

M7 series of Crestabond methacrylate adhesives are 1:1 mix ratio structural grade high strength adhesives with low elongation. They are especially developed to bond difficult metals and plastics such as galvanised steel, zinc coated metals, chrome plated metals and SMC, BMC, Nylon and pultruded GRP.

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Frequently asked questions

MMA adhesive is a two-component structural bonding adhesive consisting of a Adhesive and an activator. When mixed in the correct ratio, a chemical reaction initiates rapid curing — creating a tough, high-strength bond. MMA adhesives are widely used in industries such as automotive, EV battery assembly, marine, wind energy, construction, and composite manufacturing, where reliable structural bonding of metals, plastics, and composites is required.

• Cure Speed: MMA cures significantly faster — typically handling strength is achieved within minutes, while epoxy takes several hours.
• Flexibility & Impact Resistance: MMA offers superior peel strength, flexibility, and impact/vibration resistance. Most Epoxies are more rigid and brittle under dynamic loads.
• Surface Preparation: MMA requires minimal surface preparation — often just cleaning is sufficient. Epoxy typically requires clean, mechanically abraded surfaces.
• Off-Ratio Tolerance: MMA adhesives have a higher tolerance for mixing ratio variations compared to epoxies, making them more forgiving in production environments.
• Temperature Resistance: Epoxies generally offer better performance at very high continuous temperatures.
• Odor: MMA has a characteristic strong odor due to the methacrylate chemistry. Epoxy has relatively lower odor but requires careful handling of hardeners.

MMA adhesives from Elixir-India are supplied as two-component systems requiring precise mixing of resin and activator. Elixir India offers two series:
• Crestabond M1 Series — 10:1 mix ratio (resin to activator). High elongation, high gap fill (up to 50mm), non-sag on vertical surfaces. Ideal for bonding dissimilar substrates.
• Crestabond M7 Series — 1:1 mix ratio. High strength with moderate elongation. Suitable for metals, composites, and glass fibre reinforced plastics (GRP).
Always follow the specific product datasheet for the correct mixing ratio and dispensing instructions.

There are many advantages that a methacrylate adhesive offers over an epoxy adhesive.For instance, MMA achieves strength rapidly,needs little or no surface preparation and can bond plastics as well as metals with equal ease.They also have much higher peel strength than an epoxy adhesive.

MMA adhesives are designed for fast fixture. Handling strength is typically achieved within minutes, depending on the product grade and ambient conditions. Full mechanical strength develops within 24 hours. Factors affecting cure time include ambient temperature (lower temperatures slow curing), substrate type, bond line gap, and humidity. Elixir India’s Crestabond range includes grades with different working times — from fast-setting formulations to extended open time variants — to suit different assembly workflows.

MMA adhesives bond a wide variety of substrates including metals (steel, aluminium, stainless steel), composites (GRP, FRP, CFRP), plastics, and glass. The Crestabond M1 series is particularly suited for bonding dissimilar substrates. Note: Standard M1 series products are not recommended for zinc or galvanised coated metals — the Crestabond M7 series should be selected for such applications.

One of the key advantages of MMA adhesives is that they require minimal surface preparation compared to other structural adhesives. For most applications, removing loose contamination, dust, and oils is sufficient. For enhanced bond performance on very smooth or oily surfaces, light abrasion or the use of a suitable primer is recommended. No primers are required for most metal and composite bonding applications with Crestabond.

One of the key advantages of MMA adhesives is that they require minimal surface preparation compared to other structural adhesives. For most applications, removing loose contamination, dust, and oils is sufficient. For enhanced bond performance on very smooth or oily surfaces, light abrasion or the use of a suitable primer is recommended. No primers are required for most metal and composite bonding applications with Crestabond.

Correct storage is critical to maintain product performance:

  • Crestabond M1 Series: Store refrigerated at 5°C to 8°C. Do not expose to temperatures.
  • Crestabond M7 Series: Store between 5°C to 8°C. Product must never be frozen.

Avoid temperature cycling (repeated warming and cooling) as this can cause phase separation in the activator component. Store cartridges upright, away from direct sunlight and heat sources. Always check the product expiry date before use.

MMA adhesives in dual cartridges must be dispensed using a compatible pneumatic or manual applicator gun rated for the cartridge ratio (e.g., 10:1). Before applying to the workpiece, always purge 3–5 strokes to waste to ensure a balanced and homogeneous mix exits the static mixer. Use only the recommended static mixer (e.g., Mixpac MFQX or equivalent) and replace the mixer after any stoppage to prevent partial curing inside the mixing elements. Never reuse a mixer that has been left idle.

MMA structural adhesives are used across a broad range of industries including electric vehicle (EV) manufacturing (battery pack assembly, structural chassis), commercial and specialty vehicles, marine and shipbuilding, wind energy (blade bonding), composite fabrication, construction and infrastructure, signage and display, and general industrial assembly. Elixir India’s Crestabond range is proven in high-demand applications across these sectors in India and globally.

Standard MMA adhesives are coloured products and are generally not suitable for transparent bond lines. However, Elixir-India also offers the Loxeal AC5004 transparent MMA adhesive, which delivers high bond strength with a fully clear bondline — ideal for applications where aesthetics and optical clarity are required.

Elixir India offers free expert consultation through a one-on-one web meeting with a bonding and sealing specialist. During the session, you can discuss your application requirements, substrate types, loading conditions, and production process to receive a tailored product recommendation, application guidance, and a sampling/qualification plan. Contact Elixir India to book your session.

Mostly MMAs are colored products making them unsuitable to bond transparent parts,howeverLoxeal laboratories have sucessfully rolled our transparent MMA such as AC5004 that not only provide tenacious bond strength but a fully transparent bondline.

We have introduced a range of products that are well suited for powder coating process.As an example take EL-801PC, a methacrylate adhesives that cures rapidlyand can be passed through seven tank surface preparation procss before being powder coated upto 200°C, all only after an hour of room temperature curing.
MMA adhesives

Target Industries

Automotive industry

Aerospace

wind energy-MMA

Wind Energy

Rail and Mass Transit

Methyl Methacrylate Adhesives

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