Acrylic U 450 Gr
Acrylic U is a one-component, acrylic-based, paintable joint filling and insulation sealant with good adhesion strength.
- Used for filling and insulation in wooden and PVC windows and expansion joints of prefabricated building elements.
- Paintable after curing.
- Maintains its elasticity after drying.
- Since it is water-based, it does not affect the filled surface.
- Becomes waterproof after curing and does not cause color bleeding.
- Provides good adhesion to many porous surfaces and aluminium.
- Used on window sills, joints between skirting boards and wall connections.
- Used in connections of all types of joinery with plaster, window sills and other building materials.

Key Advantages
Application Areas
Window and Prefabricated Joints
Used for filling and insulation in wooden and PVC windows and expansion joints of prefabricated building elements.
Paintable Elastic Filling
Paintable after curing and maintains its elasticity after drying. Provides an advantage in decorative and functional filling applications.
Surface-Friendly Application
Since it is water-based, it does not affect the filled surface. It becomes waterproof after curing and does not cause color bleeding.
Porous Surfaces and Aluminium
Provides good adhesion to many porous surfaces and aluminium. Offers safe application for interior connection details.
Sill and Wall Connections
Provides aesthetic and durable filling on window sills, joints between skirting boards and wall connections.
Building Material Connections
Used in connections of all types of joinery with plaster, window sills and other building materials. Provides effective results in interior connection details.
Technical Specifications
| Property | Value |
|---|---|
| Base | Acrylic Polymer |
| Skin formation (*) | Approx. 20 min (20°C / 65% RH) |
| Density | 1.65 g/ml |
| Temperature resistance (fully cured) | -20°C to +80°C |
| Maximum movement capability | 12.5% |
| Volume loss | 15% |
| Surface Application Temperature | +5°C --> +35°C |
| Packaging Information | 450 gr Cartridge / 30 Units per Box |
| Colors | White |
Application Tips
Application Area
Acrylic U 450 Gr is used in wooden and PVC windows, expansion joints of prefabricated building elements, window sills, joints between skirting boards and wall connections.
Performance Advantage
Paintable after curing, maintains its elasticity and becomes waterproof. It provides a clean and professional appearance in interior connection details.
Surface Compatibility
Provides good adhesion to many porous surfaces and aluminium. Thanks to its water-based structure, it allows safe application without affecting the filled surface.
Storage and Application
For best results, the product should be applied between +5°C and +35°C and stored for 15 months in unopened packaging in a cool and dry environment between +5°C and +25°C.
















