Sika Sikaflex-504 SL Semi Leveling Roof Membrane Sealer - White, 300ml

Sikaflex 504 SL Semi Leveling Roof Membrane Sealer - White - 300ml

Sikaflex-504 SL is a 1-component silane-terminated polymer (STP) sealant that cures on exposure to atmospheric humidity. Its flow characteristic is designed for roof sealing applications where the sealant must partially level for wider coverage and still be able to encapsulate protrusions in the roof, such as bolt heads. Sikaflex-504 SL has a wide adhesion range and very good weathering resistance, making it suitable for open joints.

Sikaflex-504 SL is suitable for sealing a wide variety of RV roofing components and materials, including gel-coated, fiber-reinforced plastic, EPDM, metals, metal primers and paint coatings (2-component systems), ceramic materials, and plastics.

Seek the manufacturers advice and perform tests on original substrates before using Sikaflex-504 SL on materials prone to stress cracking. This product is suitable for experienced professional users only. Tests with actual substrates and conditions have to be performed, ensuring adhesion and material compatibility.

Advantages:

• Bonds well to a wide variety of substrates
• Semi-self-leveling for roof sealing
• Very good dispensing characteristics
• Isocyanate free
• Low VOC content
• Very good weathering resistance

The Sika Sikaflex-504 SL is a versatile, single-component silane-terminated polymer (STP) sealant designed specifically for roof sealing applications. Its semi-self-leveling formulation allows for wider coverage and the ability to encapsulate protrusions such as bolt heads, making it ideal for maintaining the integrity of various roofing surfaces. This product cures upon exposure to atmospheric humidity, forming a durable, weather-resistant seal that adheres strongly to a broad spectrum of substrates including gel-coated surfaces, fiber-reinforced plastics, EPDM, metals, ceramic materials, and plastics. Its formulation ensures excellent adhesion and flexibility, even in outdoor conditions, providing long-lasting protection against the elements. The Sikaflex-504 SL is also free from isocyanates and contains low VOCs, aligning with environmentally conscious building standards. It offers very good weathering resistance, ensuring that your roof remains sealed and protected over time, even under harsh weather conditions. This product is suitable for experienced professional users who understand the importance of substrate testing and compatibility checks before application. Its ease of dispensing and controlled flow characteristics make it a reliable choice for sealing open joints and roof penetrations efficiently. Whether you're sealing metal joints or fiber-reinforced roofs, Sikaflex-504 SL delivers a professional-grade seal with excellent adhesion, flexibility, and durability, helping you maintain the integrity of your roofing system for years to come.

Features:

• Bonds well to a wide variety of substrates

• Semi-self-leveling for roof sealing applications

• Very good dispensing characteristics

• Isocyanate free for safety

• Low VOC content for environmental safety

• Very good weathering resistance for outdoor durability