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EVERBUILD BLACK JACK 903 BITUMEN TROWEL MASTIC, Fibre-Reinforced Bituminous Trowel Compound, Exterior, Black

EVERBUILD BLACK JACK 903 BITUMEN TROWEL MASTIC, Fibre-Reinforced Bituminous Trowel Compound, Exterior, Black

Adhesives & Sealants
EVERBUILD

Everbuild is a well-established brand under the Sika group, specializing in high-performance sealants, adhesives, fillers, and building chemicals. Known for its reliable and durable products, Everbuild caters to both professional tradespeople and DIY enthusiasts. The product range includes silicone sealants, acrylic fillers, foam sealants, and various specialty construction chemicals designed to meet the demands of modern construction and renovation projects across the UK and beyond.

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General Specifications
Packaging 1 L
Usage Waterproofing And Sealing Roofing Materials And Metals
Usage Area Exterior
Color Black
Chemical Base Bitumen in white spirit, gas oil
Storage Conditions +5 °C to +25 °C - Store in original container in cool, dry conditions. Flammable solvent - fire precautions required.
Density 1.45 g/cm³
Service Temperature -10 >< +50
Application Time 15 - 30 min.
Curing Time 24 - 48 hours
Application Thickness N/A
Application Method Trowel
UV Resistant No
Moisture Resistant Yes
Mold Resistant No
Paintable No
Sealant Yes
Flexible No

Heavily-filled, fibre-reinforced, trowellable bituminous compound

EVERBUILD BLACK JACK 903 BITUMEN TROWEL MASTIC is a trowel-applied, black, heavily-filled bituminous compound with added fibres for reinforcement. The product forms a surface skin, but the mass below remains soft to allow for moderate movement. Suitable for sealing and filling holes in mastic asphalt, roofing felt, corrugated iron, metal guttering and downpipes.

  • Fast drying
  • Fibre-reinforced
  • Suitable for use with all bituminous surface coatings
  • Remains flexible for long periods after application
Usage
Mainly used for:
  • Waterproofing, stopping, bedding, bonding and sealing.
  • Adheres to/fills holes in: mastic asphalt, roofing felt, corrugated iron, cast iron, fibre cement, slates, lead, copper, zinc, concrete and timber.
 
Advantages
  • Fast drying
  • Fibre-reinforced
  • Suitable for use with all bituminous surface coatings
  • Remains flexible for long periods after application
Flexibility Provides a soft resilient coating Flashpoint50°C
Packaging

1ltr, 2.5ltr, 5ltr tins
Colour

Black
Technical Information
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
Application Information
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.