Everbuild Black Jack 10m 300mm Flashing Tape 482962 FLAS300

Everbuild Black Jack Lead Grey Colour Self Adhesive Flashing Tape 10 meters Long x 300mm Extra Wide 482962 FLAS300

Barcode: 5029347099053

MPN: FLAS300

Sika Code: 482962

Colour: Lead Grey

Size: 10m x 300mm

Product Overview:

The Everbuild Black Jack Self-Adhesive Flashing Tape 10m x 300mm is a professional-grade, extra-wide waterproofing and sealing solution designed for the toughest and most demanding applications. With its 300mm width and 10m length, it provides exceptional coverage for large-scale roofing, structural, and industrial projects where reliability and performance are essential.

This heavy-duty lead-grey tape combines a flexible aluminium foil surface with a high-tack bitumen adhesive, creating a long-lasting, weatherproof seal that resists water ingress, UV damage, and temperature extremes. Easy to apply with no need for additional tools or adhesives, it’s the perfect choice for sealing large roof joints, gutters, parapets, or structural gaps — delivering professional results for both trade users and DIY projects.

Key Features and Benefits

• Extra-Wide Coverage: 300mm width provides maximum protection for wide joints, large seams, and expansive surfaces.

• Professional Grade: Designed for industrial, commercial, and heavy-duty residential applications.

• Self-Adhesive Design: No need for separate adhesives — simply peel, position, and press into place.

• Durable Aluminium Finish: Reinforced foil surface ensures strength, flexibility, and a lead-look finish.

• Weatherproof Performance: Resists rain, frost, UV rays, and temperature fluctuations for long-term sealing.

• Flexible and Conformable: Adapts easily to curved, uneven, or textured surfaces for a tight, seamless bond.

• Waterproof and Long-Lasting: Creates a tough watertight seal for permanent protection.

• Lead Alternative: Achieves the look and performance of lead flashing at a fraction of the cost.

Applications and Typical Uses

• General repair or replacement of existing flashing.

• Sealing wide roof joints, seams, and parapet walls.

• Flashing for bituminous felt and similar roof types.

• Waterproofing around roof glazing, skylights, and chimneys.

• Sealing roof ridges, capping bolts, and industrial sheet joints.

• Repairs to concrete cracks, gutters, and roofing details.

• Flashing between brickwork, timber, or blockwork cavities.

• Suitable for commercial buildings, workshops, and large roofing areas.

How to Apply

1. Ensure the surface is clean, dry, and free of grease, dust, or debris.

2. For porous surfaces (brick or concrete), apply Everbuild Flashing Tape Primer and allow to dry fully.

3. Measure and cut the tape to the required length with scissors or a utility knife.

4. Peel back approximately 5cm of the release paper and position the tape.

5. Gradually remove the backing while pressing the tape firmly into place.

6. Smooth out any creases or trapped air using a seam roller or cloth.

7. Overlap adjoining edges by at least 25mm for a watertight finish.

8. Apply firm pressure across the surface to ensure full adhesion.

Product Specifications

• Material: Aluminium foil with bitumen rubber adhesive backing

• Colour: Lead Grey

• Size: 10m roll x 300mm width

• Application Temperature: +5°C to +30°C

• Storage Conditions: Store in a cool, dry place out of direct sunlight

• Shelf Life: Up to 24 months when stored correctly

• Finish: Lead-look metallic surface

Usage Tips and Surface Preparation

• In cold weather, gently warm the adhesive surface with a hot air gun to improve flexibility and adhesion.

• Do not apply to damp or wet surfaces.

• Always ensure surfaces are sound and free from oil, grease, or dust.

• For difficult areas or complex joints, use Everbuild Lead Mate Sealant to complement the tape.

• For extra durability on large flat areas, overcoat with Everbuild Evercryl Fibre Reinforced Roof Coating.

FAQs – Everbuild Black Jack Flashing Tape 10m x 300mm (Lead Grey)

• Why choose the 300mm width?
  The 300mm width offers maximum coverage for wide joints and large areas, reducing overlap and installation time.

• Is it suitable for industrial projects?
  Yes, this extra-wide version is ideal for commercial, industrial, and large-scale roofing applications.

• Does it require heating or extra adhesive?
  No, it’s fully self-adhesive, but warming the tape can improve flexibility in cold weather.

• What materials does it adhere to?
  It bonds securely to concrete, metal, timber, brick, and roofing felt.

• Can it be used vertically?
  Yes, the strong adhesive backing ensures a reliable bond on vertical and horizontal surfaces.

• Is it suitable for outdoor use?
  Yes, it’s fully weatherproof and UV-resistant, making it ideal for all outdoor conditions.

• Can it be painted?
  Yes, it can be overpainted with suitable paints or coatings if required.

• Is it a permanent solution?
  When correctly applied, it provides long-term waterproofing and sealing for many years.

• How should porous surfaces be prepared?
  Prime them with Everbuild Flashing Tape Primer to improve adhesion and durability.

• Can it replace traditional lead flashing?
  Yes, it delivers the same watertight performance and appearance at a lower cost and weight.

Why Choose Everbuild Black Jack Flashing Tape 10m x 300mm?
This 300mm extra-wide flashing tape is the go-to solution for large-scale waterproofing and sealing projects. Offering superior adhesion, flexibility, and durability, it’s ideal for professionals seeking a high-performance, easy-to-use alternative to lead flashing. From roofing to industrial repairs, it provides unbeatable protection, reliability, and coverage.

Important Product Notes:

Prime porous surfaces with Everbuild flashing primer Do not apply to damp surfaces

In cold weather adhesion may be reduced Bring up to temperature or heat bitumen adhesive layer with a hot air gun to improve adhesion and pliability

Awkward areas and tops of existing lead flashing can be pointed using Everbuild Lead mate

Preparation of Surfaces and Application:

Surfaces must be dry,

Sound free from oil, grease and dust Remove all loose material by scraper or wire brush

Porous surfaces, such as concrete or brick, should be primed using Everbuild flashing primer

Cut to the required length peel beck approximately 5cm of release carrier and place the tape into position Continue removing the release carrier whilst firmly placing the tape and avoid unnecessary creasing, ensure intimate contact and ensure no air is trapped, using a small roller ensure that all edges and overlaps are sealed properly, overlaps should be at least 25mm.

"Always read the Technical Datasheet prior to first use to ensure you have the correct information and  product for your application"

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