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Everbuild Black Jack 903 Bitumen Trowel Mastic – 2.5 Litre

Home Shop Roofing Accessories Bitumen Paint Everbuild Black Jack 903 Bitumen Trowel Mastic – 2.5 Litre
Product SKU: 90302
£22.83incl VAT.
£19.03excl VAT.
In Stock

The Everbuild Black Jack 903 Trowel Mastic is a high-quality, heavily-filled, fibre-reinforced, trowelable bituminous compound ideal for application to various roofing substrates.

  • Fast-drying, fibre-reinforced formula
  • Suitable for use in conjunction with all bituminous surface coatings
  • Remains flexible for a long-lasting time even after application
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Total Price
£22.83 Incl VAT
£19.03 Excl VAT

Uses

The Black Jack 903 Trowel Mastic by Everbuild is the ultimate, trowelable bituminous compound perfect for waterproofing, stopping, bedding, sealing and bonding applications. It's a high-performance composite that is compatible with adhering/filling holes in roofing felt, mastic asphalt, cast iron, corrugated iron, fibre cement, lead, slates, copper, concrete, zinc and timber. It is formulated to form a surface skin, but the mass belo retains a soft, flexible compound to accommodate moderate movement.

Preparation

Ensure that you prepare the surface to achieve optimal results. Start by checking the surface, ensuring it is sound and stable and then remove all contaminants that can interfere with the adhesion, then ensure it's completely dry. Metal must be wire brushed to remove the dust, and any rust must be treated with a rust-inhibitive product. Any loose or blistered paint should be removed and if the surface is newly galvanised, it needs to be roughened with a wire brush or treated with a proprietary etch primer.

Application

This product is ready to use and should not be thinned. Apply it by using a steel trowel or putty knife. You can use this product for filling cracks and holes or apply it to corrugated iron/fibre cement sheeting, tiles, lead and zinc, and felt. Please thoroughly read the technical data sheet to understand how to complete the application correctly.

Limitations and Notes

  • Do not use in areas subsequent to contact with solvents
  • Avoid inhaling the vapours of this product in confined areas
  • Allow sufficient drying times before overcoating
  • Only apply black bituminous products, and this is due to the mastic bleeding through other coatings.

Additional information

Product Type

Roof Paint

Colour

Black

Density

ca. 1.45 g/cm³

Chemical Resistance

Resistant to: most salt solutions, dilute acids and alkalis, water and alcohol.
Not resistant to: oils, solvents and some detergent solutions.

Thermal Resistance

Will not flow or sag within service temperature limits

Service Temperature

-10°C to +50°C

Yield

2 litres per m² (giving 2mm wet thickness)

Ambient Air Temperature

5°C to 40°C. Surfaces must be free from ice and water

Drying time

24 hours to develop a surface skin, the mass below remaining plastic for many months.

Flexibility

Provides a soft resilient coating

Flashpoint

50°C

Brand

Everbuild

Everbuild is the UK's leading sealant, adhesive and building chemicals brand that has a trusted name amongst the trade and DIY enthusiasts. From simple house fixes to more complex projects, Everbuild's range will be there for your needs.

Range of Everbuild Products

Everbuild have a phenomenal range of products, and we at ERoofing are proud to stock them. We have the popular 905 all-weather coatings, a full-bodied black brushable bitumen compound with added fibres for reinforcement among the vast range. Further, we have 901 Black Bitumen Paint to the 908 DPM, an odourless rubber enriched bitumen emulsion. Moreover, we stock a range of quality sealants for any DIY house project, including Everflex, Bath & Kitchen sealant, and external frame sealant.

Free Delivery on Everbuild Products

If you spend more than £10 on your order, you'll automatically qualify for free shipping on Everbuild products. This offer includes sealants, paints, glue adhesives, and others.

Technical Data Sheet

Safety Data Sheet

Product Information

Product Type

Roof Paint

Colour

Black

Density

ca. 1.45 g/cm³

Chemical Resistance

Resistant to: most salt solutions, dilute acids and alkalis, water and alcohol.
Not resistant to: oils, solvents and some detergent solutions.

Thermal Resistance

Will not flow or sag within service temperature limits

Service Temperature

-10°C to +50°C

Yield

2 litres per m² (giving 2mm wet thickness)

Ambient Air Temperature

5°C to 40°C. Surfaces must be free from ice and water

Drying time

24 hours to develop a surface skin, the mass below remaining plastic for many months.

Flexibility

Provides a soft resilient coating

Flashpoint

50°C

Technical Data Sheet

Safety Data Sheet

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