Byute Flash 100 mm × 10 m – Heavy‑Duty Weatherproof Flashing Tape

Byute Flash is a top-tier self-adhesive flashing tape featuring a paintable aluminium-foil facing backed with thick, high-tack butyl rubber. Designed for robust weatherproof sealing, this 100 mm × 10 m roll is ideal for comprehensive roofing and building applications that require durable, long-lasting protection.

Product Features & Uses

Aluminium facing provides excellent UV resistance and can be overpainted to blend seamlessly with roofing or cladding surfaces.
Butyl backed adhesive forms a high-strength, flexible seal on a variety of substrates such as metal, PVC, brick, glass, fibre cement, timber, and concrete
Application versatility makes this tape suitable for sealing gutter laps, downpipes, pipe penetrations, skylights, cartop seams, caravan repairs, water tanks, doors, windows, and more

Size & Variation

Width	Length	Approx. Weight	Ideal Uses
100 mm	10 m	~0.9 kg	Gutter laps, box gutters, valley flashings
50 mm	10 m	~0.5 kg	Narrow seams, flashings
75 mm	10 m	~0.7 kg	Mid-width coverage
150, 200, 300 mm	10 m	Varies	Larger seams and wholesale coverage

Also available in handy 3 m packs (50 mm and 75 mm). Available in both silver and grey finishes

Performance Highlights

Instant adhesion—forms a permanent seal without heat, mastics, or primers. Simply peel and apply onto clean, dry surfaces
Flexible and conformable—easily moulds to contours, corners, pipe bases, and irregular profiles.
Overlap recommendation—use at least 25 mm overlap to maintain continuous protection
Weather resistant—resilient against UV exposure, moisture, and temperature fluctuations, ensuring durable, watertight joints.

Installation Guide

Clean and fully dry the surface.
Cut to length using scissors or a utility knife.
Remove the release liner to expose the adhesive.
Firmly press the tape onto the surface, smoothing out air pockets.
Overlap adjacent strips by at least 25 mm for seamless sealing.

No special tools, heat guns, or curing time are required—making installation fast, clean, and efficient.

Why Choose Byute Flash 100 mm × 10 m?

Broad coverage—the 100 mm width suits medium-scale gutters, valleys, and box gutters.
Cross-substrate compatibility—effective on most building materials and surfaces.
Paintable face—aluminium facing can be overpainted to match roofing or wall finishes.
Professional-grade quality—makes useful performance when compared with wider industry sizes

Byute Flash 100 mm × 10 m is a highly reliable, easy-to-use flashing tape that delivers a weatherproof, flexible seal across roofing and building projects. With its substantial width, strong adhesion, and broad substrate application, it is the go-to solution for sealing box gutters, pipe penetrations, skylights, and more. The aluminium membrane can be painted for aesthetic integration, while the butyl backing ensures enduring adhesion and protection. For narrower or wider coverage, explore our 50 mm, 75 mm, 150 mm, 200 mm, and 300 mm rolls—or handy 3 m packs for smaller tasks.