EVERBUILD 903 BLACK JACK BITUMEN TROWEL MASTIC

Everbuild 903 Black Jack Bitumen Fibre Reinforced Trowel Mastic – Heavy-Duty Waterproofing Solution a multi use product for roof and gutter repairs, used primarily for patching holes in roofs and bituminous coatings, this multi purpose product forms a surface skin, but the mass below remains non setting stays soft to allow for reasonable movement, Its even been known to be used in boat building for gap filling in hulls of timber boats, it is a professional-grade, high-performance sealing compound designed to tackle heavy-duty waterproofing and sealing applications. With a thick, trowel-grade consistency, this bitumen-based mastic offers superior adhesion and durability, making it ideal for sealing joints, cracks, and gaps in roofing, guttering, pipework, and other external structures. Its weather-resistant formula ensures long-lasting protection against water ingress and harsh environmental conditions.

This is perfect for medium to large-scale projects and delivers exceptional results for both professional contractors and DIY enthusiasts. Its flexible, durable nature allows it to adapt to surface movements, providing a reliable seal that stands the test of time. Everbuild Black Jack Trowel Mastic is a trusted solution for demanding external waterproofing tasks. Unlike standard sealants, this trowel-grade mastic offers superior thickness, allowing it to easily fill larger gaps and cracks while adhering strongly to various substrates, including concrete, metal, brick, and wood. It’s the ultimate choice for robust, long-lasting waterproofing solutions.

Key Features and Benefits

• Thick Trowel-Grade Formula: Designed for easy application, this mastic spreads smoothly and effectively fills larger voids and cracks.
• Outstanding Waterproofing: Creates a watertight barrier to protect surfaces from moisture, rain, and snow.
• Exceptional Adhesion: Bonds powerfully to diverse materials, including concrete, metal, brick, and timber.
• Durable and Flexible: Adapts to movement in substrates, preventing cracks and ensuring long-term performance.
• Weather and UV Resistant: Withstands the harshest outdoor conditions without degrading or losing effectiveness.
• Versatile Applications: Ideal for roofing, guttering, pipe sealing, and external masonry repairs.
• Cost-Effective 5-Litre Pack: Perfect for both professionals and homeowners handling larger projects.
• Everbuild Trowel Mastic Benefits and Uses
  • Fast drying.
  • Suitable for use with all bituminous surface coatings
  • Remains flexible for long periods after application.
  • Waterproofing, stopping, bedding, bonding and sealing.
  • Adheres to and fills holes in mastic asphalt, roofing felt, corrugated iron, cast iron,
  • fibre cement, slates, lead, copper, zinc, concrete, timber.