---
product_id: 48713368
title: "W4 Mastic Sealing Strip for Caravans & Motorhomesmm – Grey 19mm Weatherproof Sealant for Overlap Joints, Awning Rails, Roof-Lights, Window Surrounds & External Trims, Durable & Easy to Apply"
brand: "w4"
price: "₩59334"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/48713368-w4-mastic-sealing-strip-for-caravans-and-motorhomesmm-grey-19mm
store_origin: KR
region: South Korea
---

# Weather-Resistant Multi-Surface Compatibility Easy to Apply W4 Mastic Sealing Strip for Caravans & Motorhomesmm – Grey 19mm Weatherproof Sealant for Overlap Joints, Awning Rails, Roof-Lights, Window Surrounds & External Trims, Durable & Easy to Apply

**Brand:** w4
**Price:** ₩59334
**Availability:** ✅ In Stock

## Summary

> 🚐 Seal the Deal with W4!

## Quick Answers

- **What is this?** W4 Mastic Sealing Strip for Caravans & Motorhomesmm – Grey 19mm Weatherproof Sealant for Overlap Joints, Awning Rails, Roof-Lights, Window Surrounds & External Trims, Durable & Easy to Apply by w4
- **How much does it cost?** ₩59334 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/48713368-w4-mastic-sealing-strip-for-caravans-and-motorhomesmm-grey-19mm)

## Best For

- w4 enthusiasts

## Why This Product

- Trusted w4 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Owners:** High-quality performance that caravan enthusiasts rely on.
- • **Weatherproof Wonder:** Durable design that stands up to the elements.
- • **Seal with Confidence:** Versatile sealing solution for all your caravan needs.
- • **Long-Lasting Protection:** Secure your fittings with a reliable, strong adhesion.
- • **User-Friendly Application:** No professional help needed—DIY made easy!

## Overview

The W4 Mastic Sealing Strip is a versatile, weatherproof solution designed for caravans and motorhomes. Measuring 19mm in width, it effectively seals overlap joints, awning rails, roof-lights, and more. With its durable formulation, this sealing strip ensures long-lasting protection against leaks and damage, making it a trusted choice for outdoor enthusiasts. Easy to apply and compatible with various surfaces, it empowers users to maintain their vehicles without professional assistance.

## Description

W4 Mastic Sealing Strip for Caravans & Motorhomesmm – Grey 19mm Weatherproof Sealant for Overlap Joints, Awning Rails, Roof-Lights, Window Surrounds & External Trims, Durable & Easy to Apply

## Features

- Versatile Sealing Solution: Ideal for sealing and re-bedding a wide range of caravan and motorhome fittings, including overlap joints, awning rails, roof-lights, vents, and window surrounds.
- Multi-Surface Compatibility: Perfect for use on aluminium mouldings, exterior lights, grab handles, and most external trims, ensuring a secure and long-lasting seal.
- Durable & Weather-Resistant: Formulated to withstand outdoor conditions, this mastic sealing strip provides a reliable, weatherproof seal to protect against leaks and damage.
- Easy to Apply: Convenient and simple to use, this sealing strip makes it easy to maintain and upgrade your caravan or motorhome fittings without the need for professional assistance.
- High-Quality Performance: Trusted by caravan and motorhome owners, the W4 Mastic Sealing Strip delivers strong adhesion and lasting protection for all your external trims and fittings.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | W4 |
| Brand | W4 |
| Model | Narrow Mastic |
| Product Dimensions | 2.6 x 5.75 x 6.38 cm; 222.26 g |
| Item model number | W4 Mastic |
| Manufacturer part number | 00016 |
| Item Weight | 222 g |

## Product Details

- **Brand:** W4
- **Material:** Butyl
- **Colour:** Grey
- **Product dimensions:** 19W millimetres
- **Item thickness:** 19 Millimetres

## Images

![W4 Mastic Sealing Strip for Caravans & Motorhomesmm – Grey 19mm Weatherproof Sealant for Overlap Joints, Awning Rails, Roof-Lights, Window Surrounds & External Trims, Durable & Easy to Apply - Image 1](https://m.media-amazon.com/images/I/719Dp6llWKL.jpg)
![W4 Mastic Sealing Strip for Caravans & Motorhomesmm – Grey 19mm Weatherproof Sealant for Overlap Joints, Awning Rails, Roof-Lights, Window Surrounds & External Trims, Durable & Easy to Apply - Image 2](https://m.media-amazon.com/images/I/81vGN0phFeL.jpg)
![W4 Mastic Sealing Strip for Caravans & Motorhomesmm – Grey 19mm Weatherproof Sealant for Overlap Joints, Awning Rails, Roof-Lights, Window Surrounds & External Trims, Durable & Easy to Apply - Image 3](https://m.media-amazon.com/images/I/71gF0eKeBqL.jpg)
![W4 Mastic Sealing Strip for Caravans & Motorhomesmm – Grey 19mm Weatherproof Sealant for Overlap Joints, Awning Rails, Roof-Lights, Window Surrounds & External Trims, Durable & Easy to Apply - Image 4](https://m.media-amazon.com/images/I/71hwXK2O79L.jpg)
![W4 Mastic Sealing Strip for Caravans & Motorhomesmm – Grey 19mm Weatherproof Sealant for Overlap Joints, Awning Rails, Roof-Lights, Window Surrounds & External Trims, Durable & Easy to Apply - Image 5](https://m.media-amazon.com/images/I/818XQub6uOL.jpg)

## Available Options

This product comes in different **Style Name** options.

## Frequently Bought Together

- W4 Mastic Sealing Strip for Caravans & Motorhomesmm – Grey 19mm Weatherproof Sealant for Overlap Joints, Awning Rails, Roof-Lights, Window Surrounds & External Trims, Durable & Easy to Apply
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**Shop now:** [https://www.desertcart.kr/products/48713368-w4-mastic-sealing-strip-for-caravans-and-motorhomesmm-grey-19mm](https://www.desertcart.kr/products/48713368-w4-mastic-sealing-strip-for-caravans-and-motorhomesmm-grey-19mm)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-27*