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The Evo-Stik Roof and Gutter Bitumen C20 CTG is a high-performance, rubberised bituminous sealant designed for waterproof sealing and repair work on roofs, gutters, and general exterior building surfaces. It provides a tough, flexible, weather-resistant seal that remains permanently pliable after application, allowing it to accommodate movement and thermal expansion without cracking. Formulated for excellent adhesion to most common building materials, it is ideal for sealing lap joints, flashing, roofing sheets, and guttering systems. It can also be used in direct contact with asphalt and bituminous roofing materials, making it highly effective for emergency leak repairs and long-term weatherproofing applications.
C20 cartridge rubberised bitumen roof and gutter sealant
Provides a durable, flexible, weather-resistant waterproof seal
Suitable for roofing sheets, gutters, flashing, and lap joints
Excellent adhesion to most building materials including bitumen and asphalt
Remains permanently flexible to accommodate movement
Ideal for emergency leak repairs and maintenance work
Designed for external use in exposed weather conditions