Description
Adflex – High-Performance One-Part Polyurethane Sealant & Adhesive
Adflex is a premium, non-sag polyurethane sealant/adhesive designed for demanding bonding and sealing jobs.
Moisture-curing to form a tough, elastic joint, Adflex has been trusted by professionals for years thanks to its excellent adhesion, durability and versatility.
Key Benefits
-
✅ One-Part, Ready to Use – No mixing required, cures on contact with air moisture
-
✅ Strong & Flexible Bond – Maintains permanent elasticity with >700% elongation at break
-
✅ Excellent Adhesion – Bonds to timber, metals, coated metals, ceramics, and many plastics
-
✅ Weather & Age Resistant – Withstands sunlight, rain, and temperature fluctuations
-
✅ Low Odour & Non-Corrosive – Safer and easier to work with than many alternatives
-
✅ Overpaintable & Sandable – Allows a smooth, professional finish
Typical Applications
-
Elastic sealing of expansion and connection joints
-
Bonding panels, trims, or decorative elements
-
General construction, automotive, marine and industrial repairs
-
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
-
Resistant to: fresh water, seawater, diluted acids & alkalis, sewage effluent
-
Temporary resistance to: fuels, mineral oils, animal & vegetable fats/oils
-
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:
-
300 ml cartridges
-
600 ml foil packs
-
200 L drums (on request)
Why Choose Adflex Over Other Sealants?
-
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.




