Weicon Flex 310 Polyurethane is an elastic adhesive that provides strong adhesion and long lasting performance. Based on polyurethane, this quality adhesive can be used on a variety of surfaces and materials and exhibits good elasticity, can be painted over or sanded, resists weathering, UV and aging and is resistant to fresh and salt water.
Weicon Flex 310 Polyurethane is silicone free and has a pasty like consistency which allows for highly accurate application.
Features and Benefits
- Can be painted over* and sanded after curing
- Odourless when curing
- Resistant to weathering and UV
- Exhibits excellent aging resistance
- High stability
- Pasty consistency
- Silicone Free
- Resistant to fresh and salt water
Typical Applications
Weicon Flex 310 Polyurethane is used for bonding and sealing a variety of materials including metals, many plastics, ceramic, wood, glass, stone and more. Specific application examples include:
- Tank and container construction and repairs
- Car body, freight container and vehicle construction
- Ventilation and air conditioning
- Pipeline and fittings construction
- In the energy and electrical industries
- And in many other areas where silicone based adhesives are not suitable.
Typical Characteristics
| Basis | Polyurethane |
| Density | 1.17 g/cm³ |
| Viscosity | Pasty |
| Colours | White, Black, Grey |
| Stability (ASTM D 2202) | 1mm |
| Processing Temperature | +5ºC to +40ºC |
| Cure Type | Humidity |
| Curing Conditions | +5ºC to +35ºC 40% to 70% rel. humidity |
| Skin Over Time | 48 min. |
| Cure Speed (first 24hrs) | 2-3mm |
| Max Gap Filling | 5mm |
| Overpaintable | Wet in Wet or After Complete Curing |
| Elongation at Break (ASTM D 412 / DIN 53504) |
450% |
| Movement Capacity Max. | 10% |
| Temperature Resistance | -40ºC to +90ºC |
| Temperature Resistance Short Term (2 hours) |
120ºC |
| Building Material Category DIN 4102 |
B 2 |
Available Sizes
Weicon Flex 310 Polyurethane is available in white, black or grey varieties. All are supplied in 300ml cartridges that can be dispensed using standard cartridge guns.
Surface Preparation
Before applying Flex 310 Polyurethane, it is important to ensure that the surfaces are clean and grease free. Many surface contaminants (e.g. dirt or dust) can be cleaned with Weicon Surface Cleaner. For heavily soiled surfaces, Weicon Cleaner Spray S may be more suitable. Old paint or adhesive residue may be removed using Weicon Sealant and Adhesive Remover.
If bonding to smooth surfaces it may be advisable to slightly roughen these materials as this will significantly improve the adhesive power achieved.
For more information on surface preparation, processing and storage or Weicon Flex 310 Polyurethane, it is suggested that users consult the appropriate TDS and SDS.
Adhesive Finder Tool
Unsure if this adhesive is suitable for your application? Try Weicon’s handy Adhesive Finder tool!
