---
product_id: 316542158
title: "Flashband Self-Adhesive Anti Leak Flashing Tape – 50mm x 10m (Grey) Instant Watertight Seal for Roofing and Drainage Repairs"
brand: "bostik"
price: "$35.70"
currency: USD
in_stock: true
reviews_count: 5
category: "Bostik"
url: https://www.desertcart.us/products/316542158-flashband-self-adhesive-anti-leak-flashing-tape-50mm-x-10m
store_origin: US
region: United States of America
---

# Instant watertight seal Temperature resistant -10°C to +100°C Self-adhesive, no tools needed Flashband Self-Adhesive Anti Leak Flashing Tape – 50mm x 10m (Grey) Instant Watertight Seal for Roofing and Drainage Repairs

**Brand:** bostik
**Price:** $35.70
**Availability:** ✅ In Stock

## Summary

> 💪 Seal it. Fix it. Forget it. The ultimate roofing sidekick.

## Quick Answers

- **What is this?** Flashband Self-Adhesive Anti Leak Flashing Tape – 50mm x 10m (Grey) Instant Watertight Seal for Roofing and Drainage Repairs by bostik
- **How much does it cost?** $35.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/316542158-flashband-self-adhesive-anti-leak-flashing-tape-50mm-x-10m)

## Best For

- bostik enthusiasts

## Why This Product

- Trusted bostik brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built tough for all climates:** Four-layer durable construction resists tears, impacts, and extreme temperatures from freezing to scorching heat.
- • **Apply with ease, no toolbox required:** Self-adhesive design means no messy glues or special tools—just press and roll for professional results.
- • **Trusted by thousands, rated 4.3 stars:** Join a community of savvy pros and homeowners who rely on Bostik Flashband for flawless, long-lasting repairs.
- • **Seal leaks instantly, stay dry forever:** Achieve a permanent watertight barrier on any roofing or drainage surface with zero wait time.
- • **Versatile fix for every roofing emergency:** Perfect for lead flashing replacement, gutter repairs, roof capping, and more—your all-in-one roofing lifesaver.

## Overview

Bostik Flashband is a premium self-adhesive flashing tape (50mm x 10m) engineered for instant, permanent watertight seals on roofing and drainage repairs. Featuring a robust four-layer laminate construction, it withstands extreme temperatures (-10°C to +100°C) and bonds securely to diverse materials including metal, glass, wood, and masonry. Easy to apply without special tools, it’s ideal for lead flashing replacement, gutter sealing, and flat roof repairs, making it a versatile, durable solution trusted by professionals and DIYers alike.

## Description

Bostik Flashband Self Adhesive Flashing Tape for Roofs is a self-adhesive bitumen strip which bonds instantly to provide a permanent watertight seal in all climates. Bostik Flashband Self Adhesive Flashing Tape for Roofs is easily applied using hand pressure and a seam roller, with no requirement for special equipment for cutting, forming or fixing. It bonds to most building materials including brick, masonry, slate, concrete roof tiles, wood, metal, concrete, terracotta tiles, glass, roofing felt, and rigid plastics. Applications include a large variety of construction and maintenance situations, such as repairing lead flashing, sealing valley gutters, mending leaks in drain pipes and guttering, greenhouse repairs, protecting glazing bars, protecting insulation for pipes and tanks, and repairing roofing felt joints on flat roofs.

Review: Buon prodotto, utile per impermeabilizzare una veranda.
Review: Good product-does the job

## Features

- Instant Watertight Seal Provides a permanent, watertight seal upon application, ideal for preventing leaks in roofing and drainage systems.
- Self-Adhesive Application Easily applied using hand pressure and a seam roller; no special tools or adhesives required.
- Durable Construction Comprises four protective layers—lacquer coating, heavy-duty aluminum foil, tear-resistant polyester membrane, and polymer-enhanced bitumen adhesive—ensuring tear and impact resistance.
- Temperature Resistant Performs reliably in extreme temperatures ranging from -10°C to +100°C.
- Versatile Use Suitable for various applications including replacing damaged lead flashing, sealing upstands and eave pieces, roof capping, edge flashing on roofing felt, and repairing joints on flat roofs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0001P03QA |
| Best Sellers Rank | #3,427 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #14 in Sealing Tape |
| Brand Name | Bostik |
| Color | Grey |
| Compatible Material | Glass |
| Customer Reviews | 4.3 4.3 out of 5 stars (2,808) |
| Global Trade Identification Number | 05010591998407 |
| Included Components | 1x Bostik Flashband Self Adhesive Flashing Tape for Roofs |
| Item Thickness | Not applicable Millimeters |
| Item Type Name | Flashband Original Finish |
| Manufacturer | Bostik |
| Material Type | Lamination |
| Number of Items | 1 |
| Other Special Features of the Product | Self-Adhering |
| Recommended Uses For Product | Metal |
| Size Name | 50mm x 10m |
| Surface Recommendation | Multi Surface |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Bostik
- **Colour:** Grey
- **Material:** Lamination
- **Number of Items:** 1
- **Recommended uses for product:** Metal

## Images

![Flashband Self-Adhesive Anti Leak Flashing Tape – 50mm x 10m (Grey) Instant Watertight Seal for Roofing and Drainage Repairs - Image 1](https://m.media-amazon.com/images/I/819z0kZxXnL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by E***O on 27 July 2019*

Buon prodotto, utile per impermeabilizzare una veranda.

### ⭐⭐⭐⭐⭐ Review
*by L***A on 7 March 2026*

Good product-does the job

### ⭐⭐⭐⭐⭐ Review
*by S***R on 18 July 2025*

Does what it says.na

## Frequently Bought Together

- Bostik Flashband Self Adhesive Flashing Tape for Roofs, Provides an Instant Watertight Seal, Colour: Grey, 50mm x 10m
- Rubber Roller, Ideal for Anti Skid Tape Construction Tools, Print, Ink and Stamping Tools (Black, 6.5CM)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-19*