- Specially formulated gray acrylic mastic for sealing and repairing joints and cracks indoors and outdoors - Provides effective insulation for doors and windows, preventing leaks and improving energy efficiency - Compatible with multiple surfaces: wood, cement, plaster, concrete, and more - Does not shrink after drying, ensuring a durable and resistant seal - High elasticity, withstands movement and temperature changes without cracking - Can be painted to blend perfectly into any environment - Fully dries in 48 hours, making quick and efficient work possible - Each 280 ml cartridge covers up to 15 meters of joint - Easy application with an extrusion gun, ideal for DIY and professionals