The Grafen PU50 Polyurethane Sealant 600ml Black is a high-performance one-component polyurethane sealant, specially formulated for heavy-duty sealing and bonding in construction, industry, and automotive applications.
Once cured, it forms a durable, flexible, and waterproof joint with excellent adhesion to concrete, metal, wood, ceramics, glass, and various plastics. Resistant to mechanical stress, vibration, and weathering.
The black colour provides a clean, professional finish ideal for dark materials and industrial environments.
Application
- Sealing expansion joints in concrete floors and structures
- Bonding panels, profiles, and building components
- Suitable for automotive, steel, and industrial applications
- For interior and exterior use
Instructions for Use
- Ensure surfaces are clean, dry, and free from dust, oil, and grease.
- Insert the 600ml foil sausage into a pneumatic or manual gun.
- Cut the nozzle diagonally to the desired joint width.
- Apply evenly and press firmly into the joint.
- Smooth immediately with a suitable tool.
- Allow to fully cure before painting or exposure to load.
Product Specifications
- Content: 600 ml (foil sausage)
- Colour: Black
- Type: Polyurethane sealant
- Application temperature: +5°C to +40°C
- Temperature resistance: -30°C to +90°C
- Skin formation: approx. 60 min
- Curing rate: 3 mm / 24h
- Shore A hardness: approx. 40 → medium elasticity – balance of flexibility and strength
- Shelf life: 12 months from manufacturing date
