Everbuild 903 Black Jack Bitumen Trowel Mastic 2.5 Litre - 90302

Brand: Everbuild
 QR23712 |  In Stock

  • RRP£22.96 Inc. VAT
  • OUR PRICE £12.42

    £14.90   Inc. VAT
  • Product Code: 90302
  • SKU: 486989
  • EAN: 5029347009328
  • MPN: 

Everbuild 903 Black Jack Multi Use Trowel Mastic 2.5 Litre Tin 90302

Barcode: 5029347009328

MPN: 90302

Sika Code: 486989

Size: 2.5 Litre

Colour: Black


The Everbuild 903 Black Jack Bitumen Trowel Mastic in a 2.5-litre size is a premium, heavy-duty solution for waterproofing and sealing a wide range of surfaces. Specifically formulated for professional and demanding applications, its thick, trowel-grade consistency is ideal for repairing larger gaps, cracks, and joints in roofing, guttering, and structural features.

This bitumen-based mastic provides long-lasting protection against water ingress and environmental damage. Designed for convenience, it’s easy to apply directly with a trowel, making it perfect for use in challenging conditions and large-scale repairs.


Key Features and Benefits:

  • Generous Size: The 2.5-litre container ensures you have ample product for larger jobs or repeated use.
  • Weatherproof Seal: Creates a robust, watertight barrier that resists harsh weather conditions.
  • Thick Trowel Consistency: Specially designed to fill and seal wide joints, deep cracks, and voids.
  • Durable and Flexible: Stays resilient over time, accommodating minor movements without cracking.
  • Versatile Application: Suitable for roofs, gutters, pipe joints, chimneys, flashings, and more.


What Makes It Stand Out?

  • Excellent Bonding: Adheres securely to multiple surfaces, including concrete, metal, asphalt, and roofing felt.
  • UV and Weather Resistance: Protects against the damaging effects of sunlight, rain, and extreme temperatures.
  • Easy to Use: Ready-to-apply formula requires no mixing—simply trowel it into place.
  • Professional Finish: Levels easily for a smooth, seamless seal that looks as good as it performs.


How to Apply:

  1. Begin by cleaning the target area, ensuring it is dry and free from debris or loose material.
  2. Using a trowel or spatula, scoop the mastic and apply it to the required area.
  3. Spread the mastic evenly, pressing it into cracks, gaps, or joints to ensure a full seal.
  4. Smooth and level the surface for a neat finish. Allow the mastic to cure before exposure to water or heavy use.


Technical Details:

  • Container Size: 2.5 litres
  • Coverage: Approximately 2 Litres per meter square at 2mm, usage will depend on the thickness of the application.
  • Drying Time: Touch dry in 6-8 hours; fully cured within 24-48 hours, depending on environmental conditions.


FAQs About Everbuild 903 Black Jack Bitumen Trowel Mastic 2.5 Litre

  1. What types of projects is this product best suited for?
    It’s ideal for sealing large cracks, wide gaps, and joints in roofs, gutters, chimneys, and more.

  2. Can it be applied to wet or damp surfaces?
    No, for optimal performance, ensure surfaces are clean and completely dry.

  3. Does it require special tools?
    No, a standard trowel or spatula is all you need for application.

  4. Is this mastic suitable for heavy-duty use?
    Yes, its thick consistency and high durability make it perfect for demanding repairs.

  5. Can it be used on vertical surfaces?
    Yes, its trowel-grade formula clings well to vertical surfaces without sagging.

  6. Is it UV resistant?
    Yes, it is designed to withstand prolonged exposure to sunlight without degrading.

  7. Can it handle movement in the substrate?
    Absolutely. The mastic remains flexible after curing, accommodating minor movements.

  8. How many coats are needed?
    Typically, one thick application is sufficient, but additional layers can be applied if required.

  9. Is it compatible with other coatings or paints?
    It is not recommended to apply other coatings over bitumen products, as they may not adhere properly.

  10. How long does it last once applied?
    With proper application, it provides durable, long-term waterproofing and sealing.


Ideal for Professionals and DIYers:

The Everbuild 903 Black Jack Trowel Mastic is designed for anyone tackling demanding repairs, from seasoned contractors to keen DIY enthusiasts.

Its versatile formula and durable finish ensure reliable results, no matter the project size.

Corrugated Iron and Fibre Cement Roofing Sheets If a roof sheet is cracked, clean and prime with Bitumen Flashing Primer


Always Read the Official Technical Data sheet prior to use to make sure you have all the details are correct and that there have not been any changes to instructions.


(Please note that tins will get dented in transit and this is not a reason for return please do not purchase tined products if this is an issue for yourself.)

Data
Brand Black Jack
Manufacturer Everbuild
Reference Code 90302
Reference Code sika 486989
Type Bitumen Repair Trowel Mastic
Size 2.5 litre
Colour Black
Name Link
Everbuild 903 Fiber Reinforced Trowel Mastic Safety Data Sheet Download Attachment
Everbuild 903 Trowel Mastic Instructions Technical Data Sheet Download Attachment

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