Description
Adflex – High-Performance One-Part Polyurethane Sealant & Adhesive
This high-performance polyurethane sealant & adhesive is designed for professional construction, glazing, automotive, marine and industrial applications where strong, flexible bonding and long-term durability are essential.
Forming a tough yet elastic joint when moisture-cured, this PU sealant adhesive delivers excellent adhesion to metals, timber, plastics, ceramics and coated surfaces. It is widely used as a high-performance alternative to premium polyurethane sealants used across the construction industry.
Key Benefits
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✅ One-Part, Ready to Use – No mixing required, cures on contact with air moisture
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✅ Strong & Flexible Bond – Maintains permanent elasticity with >700% elongation at break
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✅ Excellent Adhesion – Bonds to timber, metals, coated metals, ceramics, and many plastics
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✅ Weather & Age Resistant – Withstands sunlight, rain, and temperature fluctuations
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✅ Low Odour & Non-Corrosive – Safer and easier to work with than many alternatives
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✅ Overpaintable & Sandable – Allows a smooth, professional finish
Typical Applications
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Elastic sealing of expansion and connection joints
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Bonding panels, trims, or decorative elements
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General construction, automotive, marine and industrial repairs
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Sealing around windows, doors, or metal cladding
Technical Highlights
| Property | Value |
|---|---|
| Chemical base | One-component polyurethane |
| Colours | White, Grey, Black, Brown |
| Density (uncured) | 1.15–1.17 kg/l |
| Tack-free time | ~20 minutes |
| Cure rate | 4 mm per 24 h (23 °C / 50 % RH) |
| Shore A hardness | ~50 |
| Tensile strength | 2.4 N/mm² |
| Elongation at break | >700 % |
| Service temperature | –30 °C to +80 °C |
| Shelf life | 12 months (below 25 °C) |
Chemical Resistance
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Resistant to: fresh water, seawater, diluted acids & alkalis, sewage effluent
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Temporary resistance to: fuels, mineral oils, animal & vegetable fats/oils
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Not recommended for: organic acids, alcohol, concentrated acids/alkalis or solvents
Application Advice
Ensure surfaces are clean, dry and free of grease or dust. Use a suitable gun for application, and tool within the tack-free time for the best finish. Once cured, Adflex can be sanded or painted (test compatibility first).
💡 Available packaging:
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300 ml cartridges
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600 ml foil packs
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200 L drums (on request)
Why Choose Adflex Over Other Sealants?
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Exceptional Strength & Flexibility
Adflex combines high tensile strength (2.4 N/mm²) with >700 % elongation — giving a durable yet flexible seal other general-purpose sealants can’t match. -
One-Part, Ready to Use
No mixing or special primers needed on most substrates, saving you time on site. -
Superior Adhesion
Bonds to timber, metals, coated metals, ceramics, and many plastics — where other sealants may struggle. -
Weather & Age Resistance
Performs reliably in sunlight, rain, and temperature changes from –30 °C to +80 °C, ensuring long-term protection. -
Overpaintable & Sandable
Unlike most silicones, Adflex can be sanded smooth and painted for a seamless finish. -
Low Odour & Non-Corrosive
Safer and more pleasant to work with than acidic or solvent-heavy sealants. -
Proven Track Record
Tried and tested in construction, automotive, and industrial applications — Adflex has been trusted by professionals for years.
Adflex isn’t just another sealant — it’s a high-performance polyurethane adhesive/sealant designed to handle demanding jobs where longevity, flexibility, and strength are essential.
Looking for a cost-effective alternative to premium polyurethane sealants?
This high-performance PU sealant offers comparable adhesion, flexibility and durability at a significantly lower cost — ideal for high-volume trade use.
