Sika Black Jack 902 Bitumen and Flashing Primer 5 Litre 90205

Product Details: Brand: Sika Everbuild | Range: Black Jack | Product Type: Bitumen and Flashing Primer | Size: 5 Litre | Colour: Black | Product Code: 90205 | Model: 90205 | SKU: 486986 | MPN: 90205 | Sika Code: 486986 852671 | Barcode: 5029347009250

Sika Black Jack 902 Bitumen and Flashing Primer 5 litre is a thin black primer used to prepare suitable surfaces before applying bitumen paints, roof coatings and flashing tape systems. It helps create a better key on cleaned and prepared surfaces, making it a useful first stage before follow-on bituminous roof work.

The 5 litre tin is suited to larger priming jobs where a small tin may not be practical, including flat roof preparation, extended flashing runs, roof edge detailing, larger repair zones, felt areas and general surface preparation before compatible Black Jack coatings or tapes are applied.

Best Used For Larger Roof Preparation Jobs

This 5 litre size is a stronger choice when the job involves more than a small patch or isolated detail. It gives extra working volume for wider surface areas, repeated priming around roof details, longer runs of flashing tape preparation and larger sections of felt, asphalt, timber or weathered metal.

• Priming larger suitable roof areas before bitumen coatings.
• Preparing extended flashing tape application areas.
• Using before compatible bitumen paints and roof coatings.
• Priming suitable bitumen felt, asphalt and mastic surfaces.
• Preparing concrete, cementitious screeds and rendered surfaces.
• Priming suitable timber and weathered corrugated iron or steel after cleaning.

Why Choose The 5 Litre Tin

Choose the 5 litre version when the job needs more coverage, fewer tin changes and a more practical quantity for bigger roof preparation work. It is useful for trade users, maintenance teams and larger DIY roof jobs where several details or surface sections need priming before the main coating stage.

This product is not designed to be the final waterproofing coat by itself. It is a preparation primer used before compatible bituminous coatings, roof paints or flashing tape systems are fitted. Its job is to help the next product bond to a cleaner, better-prepared surface.

Suitable Application Areas

Sika Black Jack 902 can be used on suitable surfaces where a bituminous primer is required before the next stage of work.

• Concrete roofs and floors.
• Cementitious screeds and renders.
• Bitumen felt and asphalt.
• Mastic surfaces.
• Wood and timber details.
• Weathered corrugated iron and steel.
• Prepared areas before compatible flashing tape.

Key Performance Benefits

• Thin black bitumen and flashing primer.
• 5 litre tin for larger surface preparation work.
• Helps provide a key before bitumen coatings and flashing tape.
• Suitable for use with compatible bituminous coatings.
• Ready to use and should not be thinned.
• Can be applied by brush or spray, following manufacturer guidance.

How To Use On Larger Areas

Good preparation matters, especially when covering a wider roof area. Before applying primer, make sure the surface is clean, stable and suitable for the coating system being used afterwards.

• Step 1: Remove loose material, dirt, dust, grease, rust, moss and surface contamination.
• Step 2: Check that the area is dry, sound and free from frost, standing water or loose debris.
• Step 3: Repair damaged felt, cracks, gaps or unstable areas before priming where required.
• Step 4: Stir thoroughly before use and continue stirring during application when needed.
• Step 5: Apply a thin, even coat by brush or spray, working methodically across the prepared area.
• Step 6: Avoid heavy pooling, especially around laps, edges, outlets and roof details.
• Step 7: Allow the primer to dry fully before applying compatible bitumen coating, roof paint or flashing tape.

Trade And Maintenance Use

The 5 litre tin is well suited to maintenance work where multiple roof details, edges or surface sections need preparing in one visit. It can be useful for priming around roof penetrations, felt laps, gutters, upstands, wall abutments and other areas where a compatible bitumen-based product will be applied afterwards.

For best results, plan the work area before opening the tin, keep the primer evenly mixed and avoid applying more material than needed. A thin, even primer coat is normally preferable to a heavy coat that may pool or dry unevenly.

Quick Use Guide

• Use only on suitable prepared surfaces.
• Clean the surface thoroughly before application.
• Stir well before and during use.
• Do not thin the product.
• Apply by brush or spray as required.
• Allow to dry before applying the next compatible product.
• Clean tools promptly after use with suitable cleaning wipes or white spirit.

Compatible Products

For larger roof preparation, follow-on bitumen coating, felt adhesive work and clean-up, choose supporting products that match the next stage of the job.

• Sika Black Jack 904 Roof Felt And Chipping Adhesive 5L
• Prodec Churn Brush for Masonry and Brickwork Cleaning
• Sika Everbuild Heavy Duty Textured Wonder Wipes

• Specification

  Weight	7 kg
  Brand	Black jack
  Manufacturer	Everbuild
  Reference Code	90205
  Reference Code sika	486986 852671
  Type	Bitumen Primer and Flashing Tape Primer
  Size	5 litre

• Product FAQs

  Q: What is Sika Black Jack 902 Bitumen and Flashing Primer 5L used for?
  A: It is used to prime suitable surfaces before applying bitumen paints, roof coatings, membranes and flashing tape systems.
  Q: What size is this primer?
  A: This product is supplied in a 5 litre tin.
  Q: When should I choose the 5 litre tin?
  A: Choose the 5 litre tin for larger preparation areas, repeated priming work and roof maintenance jobs where a 1 litre tin may not provide enough coverage.
  Q: How is this bitumen primer applied?
  A: It can be applied by brush or spray to suitable clean, dry and stable surfaces, following the manufacturer’s guidance.
  Q: How long does it take to dry?
  A: On larger prepared areas, drying is normally around 3 to 6 hours, but this can vary with surface porosity, temperature, ventilation and weather conditions.
  Q: Is this the same as bitumen paint?
  A: No. This is a primer used before bitumen coatings, membranes and flashing tapes, while bitumen paint is a protective coating.

• Downloads

  Sika Black Jack 902 Bitumen & Flashing Primer Safety Data Sheet
  Sika Black Jack 902 Bitumen & Flashing Primer Technical Data Sheet