10 Best Mastic Tape Black in the UK 2025
Updated on 22/07/2025
#1
Recommended
25% Off
Free Shipping
- Forms a waterproof and airtight seal, ideal for repairing holes, cracks, and gaps.
- Designed to withstand various environmental conditions including wet, dry, hot, and cold.
- Resistant to UV damage, ensuring longevity even in direct sunlight.
- Flexibility allows adaptation to uneven surfaces during application.
- Not suitable for seams or high-pressure applications, and not recommended for automotive engine use.
Read More
- Forms a waterproof and airtight seal, ideal for repairing holes, cracks, and gaps.
- Designed to withstand various environmental conditions including wet, dry, hot, and cold.
- Resistant to UV damage, ensuring longevity even in direct sunlight.
- Flexibility allows adaptation to uneven surfaces during application.
- Not suitable for seams or high-pressure applications, and not recommended for automotive engine use.
#2
Value for Money
10% Off
Free Shipping
- Commonly used for waterproof reinforcement and airtight sealing on windows, doors, RVs, and roofs.
- Compatible with diverse materials including glass, fiberglass, wood, metals, plastics, and rubber; effectively prevents wind, water, and chemical leaks.
- Made from synthetic rubber, this 3.5mm thick butyl putty tape remains non-drying and flexible, allowing for easy application and excellent sealing properties.
- Designed for simple application; ensure surfaces are clean for optimal adhesion, with ideal usage temperatures around 10°C for best results.
- Available in multiple types and sizes to meet various industrial and commercial needs.
Read More
- Commonly used for waterproof reinforcement and airtight sealing on windows, doors, RVs, and roofs.
- Compatible with diverse materials including glass, fiberglass, wood, metals, plastics, and rubber; effectively prevents wind, water, and chemical leaks.
- Made from synthetic rubber, this 3.5mm thick butyl putty tape remains non-drying and flexible, allowing for easy application and excellent sealing properties.
Read More
#3
Free Shipping
- Effective for sealing RVs and patching various surfaces like plastic, metal, or glass.
- Prevents leaks from vapor, water, or moisture with a smooth finish, avoiding gaps or bubbles.
- Suitable for a wide temperature range, ensuring long-lasting performance regardless of conditions.
- Compatible with multiple materials including metal, wood, glass, and textiles for versatile use in homes, boats, or vehicles.
Read More
- Effective for sealing RVs and patching various surfaces like plastic, metal, or glass.
- Prevents leaks from vapor, water, or moisture with a smooth finish, avoiding gaps or bubbles.
- Suitable for a wide temperature range, ensuring long-lasting performance regardless of conditions.
- Compatible with multiple materials including metal, wood, glass, and textiles for versatile use in homes, boats, or vehicles.
#4
Free Shipping
- Self-amalgamating tape bonds to itself without adhesive, creating a seamless, durable seal upon application.
- Suitable for a variety of applications including waterproofing, corrosion protection, and electrical insulation, effectively safeguarding connections from moisture.
- Resistant to UV, moisture, and chemicals, this tape can perform well in diverse and challenging environments while easily conforming to various shapes.
- The absence of adhesive allows for long-lasting use, making it a must-have in any DIY toolkit.
- Comes in a 19mm x 5m roll with a thickness of 0.5mm, made from ethylene and rated for temperatures up to 90°C, featuring an impressive elongation of 685%.
Read More
- Self-amalgamating tape bonds to itself without adhesive, creating a seamless, durable seal upon application.
- Suitable for a variety of applications including waterproofing, corrosion protection, and electrical insulation, effectively safeguarding connections from moisture.
- Resistant to UV, moisture, and chemicals, this tape can perform well in diverse and challenging environments while easily conforming to various shapes.
Read More
#5
9% Off
Free Shipping
- This product is designed, manufactured, labeled, and packaged for sale to industrial and professional customers for workplace use; it is not intended for consumer sale or use
- Highly conformable with non-corrosive mastic adhesive
- Suitable for insulating irregular surfaces like fittings and valves
- Tape measures 1-1/2 in x 60 in x 125 mil
- Made of black tacky mastic
- Withstands a wide temperature range of 32 to 176 degrees F (0 to 80 degrees C)
Read More
- This product is designed, manufactured, labeled, and packaged for sale to industrial and professional customers for workplace use; it is not intended for consumer sale or use
- Highly conformable with non-corrosive mastic adhesive
- Suitable for insulating irregular surfaces like fittings and valves
- Tape measures 1-1/2 in x 60 in x 125 mil
- Made of black tacky mastic
- Withstands a wide temperature range of 32 to 176 degrees F (0 to 80 degrees C)
#6
Free Shipping
- Strong adhesive ensures long-lasting hold, even in wet conditions.
- Effectively seals gaps and cracks, preventing moisture, air, and dust infiltration, thereby reducing the risk of leaks and mould.
- Enhances aesthetic appeal by filling gaps in tiles and glass, creating clean and refined lines in decor.
- Constructed from durable rubber material, resistant to ageing for prolonged use.
- Self-adhesive design allows for easy installation without the need for special tools.
Read More
- Strong adhesive ensures long-lasting hold, even in wet conditions.
- Effectively seals gaps and cracks, preventing moisture, air, and dust infiltration, thereby reducing the risk of leaks and mould.
- Enhances aesthetic appeal by filling gaps in tiles and glass, creating clean and refined lines in decor.
- Constructed from durable rubber material, resistant to ageing for prolonged use.
Read More
#7
Free Shipping
- Approx. 13 feet (4 m) of butyl sealing rope, 3/8 inch (9.5 mm) thick, suitable for resealing up to 3 headlight assemblies.
- Designed for automotive applications including headlights, windshields, door waterproofing, and electronic equipment sealing.
- User-friendly: Simply tear and press the sealant around seams after ensuring a clean, dry surface.
- Offers strong adhesion, good ductility, and flexibility over its lifespan.
- Includes a smooth return policy within a month for customer satisfaction.
Read More
- Approx. 13 feet (4 m) of butyl sealing rope, 3/8 inch (9.5 mm) thick, suitable for resealing up to 3 headlight assemblies.
- Designed for automotive applications including headlights, windshields, door waterproofing, and electronic equipment sealing.
- User-friendly: Simply tear and press the sealant around seams after ensuring a clean, dry surface.
- Offers strong adhesion, good ductility, and flexibility over its lifespan.
Read More
#8
Free Shipping
- Dimensions: 19mm width, 5m length, black color.
- Heavy-duty rubber self-amalgamating tape suitable for electrical and plumbing repairs.
- Bonds to itself under tension for a secure, airtight seal without adhesives.
- Effective for leak repairs on hoses and pipes, offering professional-grade reliability.
- Provides corrosion protection and electrical insulation for automotive and household applications.
Read More
- Dimensions: 19mm width, 5m length, black color.
- Heavy-duty rubber self-amalgamating tape suitable for electrical and plumbing repairs.
- Bonds to itself under tension for a secure, airtight seal without adhesives.
- Effective for leak repairs on hoses and pipes, offering professional-grade reliability.
Read More
#9
Free Shipping
- Cost-effective alternative to lead flashing, minimizing theft risk due to non-lead material.
- Self-adhesive design allows for easy application without additional glue.
- Quickly bonds to roof ridges and insulation; ideal for repairing lead gutters and sealing concrete cracks.
- Offers a strong and durable waterproof seal for long-lasting performance.
- Available in various widths (100mm to 450mm) to accommodate different applications.
- Offered in multiple lengths, including 10 metres and shorter 3-metre options, though availability may vary by width.
Read More
- Cost-effective alternative to lead flashing, minimizing theft risk due to non-lead material.
- Self-adhesive design allows for easy application without additional glue.
- Quickly bonds to roof ridges and insulation; ideal for repairing lead gutters and sealing concrete cracks.
- Offers a strong and durable waterproof seal for long-lasting performance.
- Available in various widths (100mm to 450mm) to accommodate different applications.
Read More
#10
Free Shipping
- Butyl sealing tape is made from synthetic rubber, offering non-toxic, odorless, and waterproof properties. It is flexible, durable, and resistant to various chemicals.
- Operates effectively in temperature ranges from -20°C to 100°C, maintaining its adhesive qualities across various surfaces including metal, concrete, glass, and wood, effectively blocking leaks from a range of substances.
- Designed for user-friendly application; simply clean the surface, peel off the backing, and press into place. Requires no special tools, and can be easily shaped or cut for precise application.
- Versatile sealing solution suitable for a wide range of applications including vehicle lights, windows, door seals, electrical panels, and household repairs.
- Product includes one roll of butyl sealing tape, with customer support available for any satisfaction concerns.
Read More
- Butyl sealing tape is made from synthetic rubber, offering non-toxic, odorless, and waterproof properties. It is flexible, durable, and resistant to various chemicals.
- Operates effectively in temperature ranges from -20°C to 100°C, maintaining its adhesive qualities across various surfaces including metal, concrete, glass, and wood, effectively blocking leaks from a range of substances.
Read More
Similar Products
Caravan Mastic Sealant Tape
See All
Mastic Tape Caravan
See All
Joist Tape For Decking
See All
