PU Sealant

PU Mastic is a flexible and durable construction chemical frequently preferred in bonding and sealing applications. It is commonly used in buildings, for joining glass and aluminum, and in insulation and repair work. With its polyurethane-based formula, PU Mastic hardens after application, providing strong adhesion.

PU Sealant Properties

• Flexibility: PU sealant retains its flexible structure after drying, preventing cracking.
• Durability: Resistant to UV rays, water, and temperature changes.
• Adhesion Strength: Adheres strongly to surfaces such as concrete, glass, wood, and aluminum.
• Waterproofing: It is waterproof and can be safely used in outdoor applications.
• Long-lasting: With proper application, it remains effective for many years.

Where is PU Sealant Used?

PU sealant is used in both indoor and outdoor applications. Common areas of use include:

• Sealing cracks and joints in buildings.
• Bonding in glass and aluminum joints.
• Insulation in areas requiring waterproofing.
• Insulation fillers used in sound insulation applications.
• Assembly of garden and outdoor building elements.

PU Sealant Application Techniques

When applied correctly, PU sealant provides long-lasting and reliable results. Points to consider during application:

1. Surface Preparation: The surface must be clean, dry, and free of dust.
2. Correct Amount of Use: The sealant should be applied in sufficient quantity to fill the gaps, but not overflowing.
3. Application with Brush or Gun: PU sealant can be applied with a gun or by hand; gun application gives a smoother result.
4. Drying Time: Varies depending on weather conditions; generally, the surface needs to be hardened to the point where it is no longer touchable.
5. Cleaning: Excess sealant should be cleaned off immediately after application.

Advantages of Using PU Sealant

The main advantages of using PU sealant are as follows:

• Provides long-lasting and durable adhesion.
• It can be safely used on various surfaces.
• Its flexible structure prevents cracking and deformation.
• It provides water and air tightness.
• It can be applied quickly and dries fast.

Tips About PU Sealant

Following these tips when applying PU sealant will improve its performance:

• Lightly sand the surface before application; this will improve adhesion.
• Adjust the application amount according to the depth of the joint or crack.
• Avoid applying PU sealant in direct sunlight.
• Do not apply to the surface before the drying time is complete.

The information in this text may vary from time to time depending on the manufacturer. Always check the product label.