Byute Flash 50 mm × 3 m – All-Purpose Weatherproof Tape

Byute Flash is a premium self-adhesive flashing tape combining an aluminium-foil facing with a robust butyl-rubber adhesive. Designed for both temporary and permanent weatherproofing, this 50 mm × 3 m roll offers exceptional versatility and durability for a wide range of building and roofing applications.

Key Features

Aluminium-faced surface: Reflects UV and can be painted to match roof or cladding colours.
High-tack butyl backing: Provides a strong, waterproof seal on diverse materials—metal, PVC, brick, fibreglass, concrete, glass, timber and more
Self-adhesive and tool-free: Install simply by pressing—no heat, mastics or special tools required.
Flexible and conformable: Easily adapts to irregular profiles, corners and penetrations.
Suitable for interior/exterior use: Ideal for gutter repairs, downpipe sealing, flashings under sills, repairs to tanks and general weatherproofing.

Size & Variations

Roll width: 50 mm
Length: 3 metres
Other available widths:
- 75 mm × 3 m
- 50, 75, 100, 150, 200, 300 mm × 10 m

Applications

Perfect for:

Waterproof sealing around skylights, windows, doors, pipe penetrations
Repairing gutters, downpipes, water tanks
Sealing overlaps and joints in roofing and cladding systems
Weatherproofing under floors, deck bearers, sills

Technical Summary

Attribute	Specification
Size	50 mm × 3 m roll
Adhesive	Thick butyl rubber
Facing	Aluminium foil (paintable)
Substrate Suitability	Metal, PVC, brick, fibreglass, timber, glass
Variations	Wider widths available in 10 m lengths

Installation Tips

Ensure surfaces are clean, dry and free from dust or grease.
Cut tape to required length and remove backing liner.
Firmly press onto surface, smoothing out air pockets.
Overlap adjacent pieces by at least 50 mm for continuous sealing.
Ideal for both quick repairs and permanent weatherproofing solutions.

Why Choose Byute Flash?

Byute Flash 50 mm × 3 m delivers a cost-effective and efficient solution where a narrow strip is all that’s needed. With strong adhesion, UV resistance, and easy installation, it’s a trusted choice for builders, roofers, and DIY users alike. The aluminium surface can accept paint, blending seamlessly with existing finishes. For larger areas, explore wider rolls in the Byute range.

Byute Flash is your go-to weatherproofing tape—whether you’re fixing leaks, sealing joints, or securing penetrations, it offers reliable, clean results every time.