Description
A20 Steel+ Two Part Structural Adhesive is a high performance adhesive and advanced 10:1 ratio methacrylate. Specifically engineered for bonding steel, including mild steel and stainless steel. Developed for demanding industrial and engineering applications, it delivers fast grab and strong, reliable performance across a wide range of industrial assembly and metal bonding environments.
Optimised for steel substrates, A20 Steel+ provides rapid initial adhesion, supporting efficient handling and positioning during application. It forms a durable, high-strength bond with excellent high durability, making it suitable for structural metal assemblies.
This product is part of a range of structural bonding range, offering dependable performance across multiple materials including aluminium, carbon fibre, composites, GRP, UPVC, polyesters, granite, and marble. It also supports gap filling up to 1mm and 4mm without compromising mechanical properties.
The adhesive delivers excellent tensile and high shear strength, along with high temperature resistance and outstanding UV stability, ensuring long-term performance in demanding structural applications.
Working time: 2 – 4 minutes
Fixture time: 4 – 6 minutes (allow 12-24 hours for full strength)
Gap fill: 4mm
Temperature range: -55°C to +150°C (short term 220°C)
Paint bake cycle approval, 20 minutes @ 220°C.
Application temperature: 15°C to 25°C
Colour: Black
Available in 50ml and 490ml
Typical Applications of A20 Steel+ Two Part Structural Adhesive
Suitable for a wide range of industrial, commercial, and structural bonding applications, including:
- Steel panels and architectural cladding systems
- Structural steel fabrications and assemblies
- Mild steel and stainless steel component bonding
- Metal fabrication and general engineering assemblies
- Composite and GRP component bonding to steel
- Carbon fibre assemblies in mixed-material structures
- UPVC and polyester bonding applications
- Stone and masonry installations including granite and marble
- General engineering and structural manufacturing
- Gap filling applications in steel assemblies up to 4mm
How to Use
- Clean all bonding surfaces thoroughly using Metal Adhesives IPA Cleaner / Degreaser and a lint-free cloth before application.
- For improved bond strength and durability on difficult substrates, apply Metal Adhesives Primer or Metal Adhesives UV Identifiable Primer.
- Carry out a dry run before applying adhesive to ensure you have enough space to complete the application in one continuous movement.
- Attach the supplied nozzle to the cartridge and load it into the applicator gun.
- Squeeze the trigger until adhesive flows evenly from the nozzle tip.
- Apply the adhesive bead directly onto the required surface area.
- Join the components together and apply consistent pressure across the entire bonded area at room temperature to achieve maximum adhesion.
- If required, smooth or remove excess adhesive while wearing protective gloves.
- Allow the bond to cure in line with the recommended working and fixture times.
- For partially used cartridges, leave the cured nozzle attached. When ready to reuse, remove the old nozzle and fit a new one.
- Compatible with A20 Applicator Guns and Nozzles.
Recommended Supporting Products
Metal Adhesive IPA Cleaner Degreaser
Metal Adhesive IPA Cleaner Degreaser is formulated with 99.8% pure isopropyl alcohol and is specifically developed to prepare surfaces and substrates prior to bonding. It is suitable for use on metals, most plastics, and elastomers, and is free from CFCs, HCFCs, and ODPs. The cleaner effectively removes oils, oxides, residues, and other contaminants that can weaken bond performance, including surface contamination caused by handling or skin contact. It is also recommended for preparing newly manufactured parts before adhesive application, as proper surface preparation is essential for achieving a strong, long-lasting bond. For best results, it should be used in conjunction with a recommended micro lint-free cloth.
Metal Adhesives Primer (Red)
Metal Adhesives Primer (Red) is designed to improve adhesion on substrates that are typically difficult to bond. When applied, it creates a surface key that helps selected tapes and adhesives achieve a stronger, more reliable bond. Technically, the primer works by increasing the surface energy of the material, enhancing the interaction between the adhesive and the substrate. It is suitable for a wide range of applications, including painted metal surfaces, and can also be used on polyethylene and polypropylene.
View the full Metal Adhesives range below:
| Product | Type | Colour | Key Feature | Strength |
|---|---|---|---|---|
| A1 Seam Sealer+ High Temperature Sealant Adhesive | Hybrid | White | Designed for use in the powder coating industry |  |
| A2 Metal & Plastic+ Polyurethane Adhesive Sealant | Polyurethane | White / Grey / Black | Suitable for sealing and bonding applications | |
| A3 Clear+ MS Polymer High Grab Adhesive | Modified Silane | Clear | Flexible, high grab adhesive | |
| Colour Match Silicone Sealant | Silicone | RAL number matched | Can be specifically colour matched for your requirement | |
| A10 Aluminium+ Two Part Structural Adhesive | Methacrylate | Neutral | Metal-to-metal structural bonding |  |
| A20 Steel+ Two Part Structural Adhesive | Methacrylate | Black | High-strength steel and multi-surface bonding | |
| A60 Brass+ Two Part Structural Adhesive | Epoxy | Clear | Toughened epoxy structural adhesive for brass | |
If you have any questions, do not hesitate to contact us via the yellow chatbox, fill out our online contact form, email us at [email protected], or call us directly on +44 (0) 121 378 2909.
