Discover SMX® Technology: The Future of Sealants and Adhesives
Key takeaways
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SMX technology delivers strength plus flexibility, with fast cure and paintability.
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Ultra-low VOC, solvent and isocyanate free, with low odour.
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Bonds and seals indoors and outdoors, even in wet conditions.
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Strong AU crossover with Multibond and T-Rex SMX lines.
What is SMX® Technology?
How do you achieve exceptional strength and superior elasticity in a sealant or adhesive? How can products be paintable within the hour yet also cure underwater? How do you deliver ultra-low VOCs with no solvents or isocyanates, while performing on nearly all materials?
Welcome to SMX® technology.
The Science Behind SMX®: Soudal Modified Extensions
SMX® stands for Soudal Modified Extensions and represents decades of dedicated research and development. By combining the best features of polymers such as silicone, polyurethane, and acrylics, Soudal has created a revolutionary technology that enhances multiple extension characteristics without compromising their unique properties.
Benefits of SMX® Technology
Thanks to SMX®, Soudal products deliver:
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Superior strength and flexibility
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Excellent toolability and fast curing times
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Paintability within the hour
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Underwater curing capabilities
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Ultra-low VOCs with no solvents or isocyanates
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Mould resistance and virtually no odour
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Reliable performance in all temperatures, indoors and outdoors
How SMX® Improves Your Work
SMX® technology ensures a versatile range of high-performance sealants and adhesives designed to create healthier living and working environments. Whether you’re sealing, bonding, or finishing, SMX® products give you confidence in delivering outstanding results for your customers.
Continuous Innovation: Perfecting SMX® Technology
At Soudal, innovation never stops. Our global team continuously refines SMX® technology by integrating new polymer developments. This commitment allows us to optimize formulations and enhance on-site performance, ensuring you always have access to the best solutions.
Why Choose SMX®?
SMX® technology is built on science and perfected by Soudal, offering the edge you need for top-quality sealants and adhesives that meet today’s demanding construction and manufacturing standards.
Ask our team which SMX product fits your application, or find a local distributor.
SMX Technology FAQs
Yes, SMX cures with moisture and tolerates humid conditions. Remove standing water first. For underwater or permanently immersed joints, use a product specifically rated for immersion.
Most SMX sealants and adhesives are paintable with water-based paints after skin formation. Test a small area first, as gloss and drying can vary.
SMX offers strong adhesion, flexibility, low odour and isocyanate-free curing. It has broad substrate compatibility and good UV resistance, with less shrinkage and easier finishing than many PU products.
Typical movement accommodation is in the ±20% range. Always check the specific product data sheet and size the joint correctly.
Interior and exterior bonding and sealing, including metal, timber, masonry, plastics rated as compatible, and painted surfaces. Ideal where a flexible, paintable, low VOC solution is required.