Description
Everbuild Sika Black Jack Bitumen Roof Felt Adhesive 904 Black 2.5 Litre is a high performance solvent based roofing compound designed for strong and reliable bonding of roofing felt and related exterior surfaces. It delivers superior adhesion strength for roofing applications where durability, weather resistance and long term stability are essential. This professional grade adhesive is formulated to create a tough yet flexible bond that withstands changing weather conditions and structural movement on roofs. This roofing felt adhesive is widely used for bonding roofing felt to a variety of construction materials including concrete, asphalt, metal, timber and existing felt surfaces. It is especially effective in roof repair and maintenance work where secure sealing and long lasting adhesion are required. The bitumen based formulation ensures excellent compatibility with traditional roofing systems and provides dependable performance in demanding outdoor environments. The product is designed to offer superior bonding strength while maintaining flexibility. Once applied it forms a durable waterproof film that adapts to temperature changes by softening in heat and hardening in cooler conditions. This flexibility helps prevent cracking and splitting over time, ensuring that the bonded surfaces remain secure even under thermal expansion and contraction. Everbuild Sika Black Jack 904 is also highly effective for sealing roofing felt laps. It helps create watertight joints between overlapping sections of felt, reducing the risk of leaks and water ingress. This makes it an essential material for both new roofing installations and repair work on existing structures. In addition it can be used for cold gritting applications where chippings are bonded to the final layer of felt to enhance surface protection and durability. The adhesive provides strong resistance against a wide range of environmental and chemical factors. It is resistant to dilute acids, alkalis, water, alcohol and most salt solutions, making it suitable for exposure to harsh outdoor conditions. This chemical resistance ensures long lasting protection for roofing systems in both residential and commercial applications. Application is straightforward and practical. The adhesive can be applied using a brush or spreader directly onto clean prepared surfaces. It offers good workability allowing even distribution across roofing materials for consistent bonding performance. Once applied it develops a strong grip that secures materials firmly in place while maintaining flexibility for structural movement. Surface compatibility is one of the key strengths of this product. It adheres effectively to concrete surfaces commonly used in roofing bases, asphalt roofing structures, metal sheets used in industrial roofing, wooden substrates in timber roof builds and existing roofing felt layers. This versatility makes it a reliable solution for a wide range of roofing repair and installation tasks. The coverage rate of 2.5 litres is approximately 1.8 square metre depending on surface texture and application thickness. This allows for efficient use in small to medium roofing projects or targeted repair areas. It is particularly useful for patch repairs, lap sealing and localised bonding where precision application is required. Everbuild Sika Black Jack Bitumen Roof Felt Adhesive 904 is designed for exterior use and is built to withstand rain, wind and temperature fluctuations. It is an essential product for roofing professionals, builders and DIY users who require a dependable bonding solution for felt roofing systems. Its combination of high strength adhesion and long term flexibility ensures reliable performance in all weather conditions. This product is ideal for extending the life of roofing structures by reinforcing weak areas, sealing joints and securing protective layers. It supports both preventative maintenance and emergency repair work where fast and effective bonding is required. The solvent based bitumen formulation ensures deep penetration into surfaces for enhanced grip and long lasting durability. With its proven performance in roofing applications, Everbuild Sika Black Jack 904 remains a trusted choice for achieving strong waterproof bonds in demanding construction environments. It provides a professional standard solution for ensuring roofing integrity and protection across a wide range of surface types.