The Grafen Professional Polyurethane Sealant PU 40 is a one-component elastic polyurethane sealant offering excellent adhesion and long-term flexibility.
Developed for professional sealing and bonding, it forms a durable, weather- and moisture-resistant joint after curing.
PU 40 adheres perfectly to concrete, ceramics, metal, wood and plastics, for both interior and exterior applications.
Application
- Sealing of cement and ceramic surfaces
 - Roof, terrace and floor joints
 - Expansion and connection joints in concrete
 - Bonding and sealing of structural components
 
Instructions for Use
- Ensure the surface is clean, dry and grease-free.
 - Cut the nozzle diagonally and apply evenly with a caulking gun.
 - Smooth and press for better adhesion.
 - Allow to cure; curing time depends on layer thickness and conditions.
 
Product Specifications
- Content: 300 ml
 - Type: One-component polyurethane sealant
 - Colour: Black
 - Density: 1.16 g/cm³ ± 0.03
 - Main components: Xylene (≥5–<10%), Titanium Dioxide (≥1–<5%), Ethylbenzene (≥1–<5%), 4,4’-Methylenediphenyl Diisocyanate (≥0.5–<1%), Calcium Oxide (≥0.5–<1%), 4-Isocyanatosulphonyltoluene (Tosyl isocyanate) (<0.5%), Phosphoric acid (<0.5%)
 - Storage: store in a dry, cool place in tightly closed containers at +5 °C to +25 °C, away from heat, sparks and sunlight
 - Shelf life: 12 months from production date
 
