PU Construct (D4)
PU Construct (D4) is a one-component, polyurethane-based professional assembly adhesive with high bonding strength and high water resistance. Lightly moistening the surfaces accelerates strength build-up and the curing process. It is developed for applications requiring permanent and strong bonding in construction and repair works.
- It does not stain high-quality porous surfaces and does not contain solvents.
- It offers very high bonding strength thanks to fast curing and strength build-up.
- Provides strong performance against moisture and challenging conditions with D4 water resistance.
- Used for bonding porous and non-porous surfaces together in construction and repair works where permanent and strong adhesion is required.
- Delivers effective results on many building components such as wood, MDF, polystyrene and polyurethane foam.
- Saves time in professional applications thanks to its fast curing character.

Key Advantages
Application Areas
High Water Resistance and D4 Performance
Its high water resistance formula delivers strong results under challenging conditions. Thanks to its D4 class performance, it is suitable for durable assembly applications.
Fast Curing and Strength Build-Up
Thanks to its fast curing feature, bonding strength reaches a very high level. Lightly moistening the surface accelerates the curing process.
Porous and Non-Porous Surfaces
It delivers effective results in bonding porous and non-porous surfaces together in construction and repair works requiring permanent and strong adhesion.
Clean and Solvent-Free Application
It contains no solvents, does not stain and provides clean use. It delivers safe and controlled results in professional assembly applications.
Wood and Building Components
It is used for bonding many building components such as wood, MDF, polystyrene and polyurethane foam. It provides strong support in assembly and construction works.
Professional Assembly and Repair
It stands out in professional assembly, repair and construction applications thanks to its high bonding strength, fast curing character and water resistance.
Technical Specifications
| Property | Value |
|---|---|
| Base | Polyurethane |
| Skin formation (*) | Approx. 10 min (20°C / 65% RH) |
| Curing speed (*) | 3 mm / 24 h (20°C / 65% RH) |
| Water Resistance | D4 (according to DIN EN 204) |
| Density | 1.50 g/ml |
| Volume Loss | None |
| Temperature resistance (fully cured) | -30°C to +100°C |
| Shear Strength | 10 MPa |
| Press Time | Maximum 15 min |
| Elongation at break | 300% (DIN 53504) |
| Surface Application Temperature | +5°C → +35°C |
| Packaging Information | 310 ml Cartridge / 15 Units per Box |
| Color | Beige |
Application Tips
Application Area
PU Construct (D4) is a professional polyurethane adhesive that can be used in assembly applications and offers high bonding strength. It is especially developed for applications requiring permanent and strong results in construction and repair works.
Performance Advantage
With D4 water resistance, 10 MPa shear strength and a maximum 15-minute press time, it provides a fast, strong and professional assembly advantage.
Surface Compatibility
It delivers effective results on many building components such as wood, MDF, polystyrene and polyurethane foam. It provides strong adhesion on porous and non-porous surfaces.
Storage and Application
Surfaces must be clean, solid and suitable for application. Light moistening accelerates strength build-up and the curing process. The product should be stored in its unopened packaging in a cool and dry environment.
















