---
product_id: 534250147
title: "Dual Lock SJ3550, Heavy Duty Reclosable Fastener Tape, Waterproof (5X Stronger Than Classic Hook & Loop Tape) (25.4mm x 2.5 Meter)"
brand: "roomwatchman secure your room home & office"
price: "€ 66.34"
currency: EUR
in_stock: true
reviews_count: 8
category: "Roomwatchman Secure Your Room Home & Office"
url: https://www.desertcart.gr/products/534250147-dual-lock-sj3550-heavy-duty-reclosable-fastener-tape-waterproof-5x
store_origin: GR
region: Greece
---

# Waterproof & weather-resistant 5X stronger than classic hook & loop 250 mushroom stems/in² for secure snap Dual Lock SJ3550, Heavy Duty Reclosable Fastener Tape, Waterproof (5X Stronger Than Classic Hook & Loop Tape) (25.4mm x 2.5 Meter)

**Brand:** roomwatchman secure your room home & office
**Price:** € 66.34
**Availability:** ✅ In Stock

## Summary

> 🔗 Lock it down with 3M Dual Lock — the fastener that means business!

## Quick Answers

- **What is this?** Dual Lock SJ3550, Heavy Duty Reclosable Fastener Tape, Waterproof (5X Stronger Than Classic Hook & Loop Tape) (25.4mm x 2.5 Meter) by roomwatchman secure your room home & office
- **How much does it cost?** € 66.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/534250147-dual-lock-sj3550-heavy-duty-reclosable-fastener-tape-waterproof-5x)

## Best For

- roomwatchman secure your room home & office enthusiasts

## Why This Product

- Trusted roomwatchman secure your room home & office brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Strength:** 5X stronger than traditional hook & loop tapes for industrial-grade hold
- • **Versatile & Invisible:** Perfect for indoor/outdoor use on metal, glass, plastic with a sleek, hidden finish
- • **Snap-Verified Security:** Audible snap confirms a secure, vibration-resistant closure every time
- • **Tool-Free Installation:** No drilling or screws needed—install in seconds with clean adhesive foam
- • **Weatherproof Durability:** Waterproof design ensures reliable fastening rain or shine

## Overview

3M Dual Lock SJ3550 is a heavy-duty, waterproof reclosable fastener tape featuring 250 mushroom-shaped stems per square inch that snap together to create a fastening 5 times stronger than classic hook & loop tape. Measuring 25.4mm wide and 2.5 meters long, it bonds securely to metals, glass, plastics, and painted surfaces with a strong acrylic foam adhesive. Designed for quick, tool-free installation, it offers durable, vibration-resistant fastening ideal for both indoor and outdoor applications where a clean, professional look is essential.

## Description

3M Dual Lock SJ3550, Heavy Duty Reclosable Fastener Tape, Waterproof (5X Stronger Than Classic Hook & Loop Tape) (25.4mm x 2.5 meter) : desertcart.co.uk: DIY & Tools

Review: STRONG adhesive. STRONG interlocking. STRONG, STRONG, STRONG. - This tape is superb as it sticks like the preverbal to a blanket. We used the tape around the beginning of October to fix plastic sheeting to our metal gazebo. This was to make the gazebo usable in winter. But to also make it usable in the summer, the sheeting had to be removable. Thus the use of this tape. And to say I am impressed is an understatement. At 4m long by 2.5 m high thses sheets are quite large. Yet having gone through 4 storms with winds gusting to 60mph, not only has the tape not pulled apart, it hasn't unstuck from the sheeting or gazebo either. This stuff HOLDS!!! Do NOT confuse this product with Velco. This is WAY stronger at sticking and holding together. If you want a fixing that will not let go but which you will need to take apart at some point then I can highly recommend this product. A few hints/tips...... Make sure the surface you are going to glue onto is dust and grease free. Ethyl alcohol is great for this. Make sure you are CAREFUL when mounting as you will find it almost impossible to adjust the position should you place it in the wrong location.
Review: Stronger and harder than Liam Gallagher!! - This stuff is unbelievably strong. The glue on the back of the tape will melt before anything. I use it to stick my guitar effects pedals to my pedalboard and they’re as good as welded to it.

## Features

- Package includes 1 roll of 3M Dual Lock SJ3550 self-mating reclosable fastener, 25.4 mm wide, 2.5 meter long, with ONE CLEANING WIPE BY ROOMWATCHMAN(R).
- A total of 0.5 meters can be used when two pieces of equal length are mated
- A white, acrylic adhesive foam (protected by a removable, film liner) that bonds strongly to metals, paint, glass, and plastic surfaces on one side.From the other side, there are black, interlocking stems shaped like mushrooms that snap together with another piece to form a strong fastening that can be opened and closed multiple times.
- Black, interlocking mushroom-shaped heads (250 stem density per square inch) provide strong, reliable, and durable fastenings that are 5X stronger than most hook-and-loop products.
- Mushroom head closure also reduces vibration. Strong fastener secures with an audible snap, verifying closure.
- The 3M Dual Lock Reclosable Fastener SJ3550 does not require drilling, screwing, or sewing tools, making installation quick and easy. The snap-in-place installation replaces screws, nails, snaps, and rivets.
- Multi-purpose for the ultimate convenience where a high strength and versatile reclosable fastening system is required.
- These hidden fasteners can be used indoors or outdoors for attaching doors, access panels, cushions, headliners, signs, and display components. A great alternative to screws and bolts, they provide a snug fit and smooth aesthetic appearance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C2FRFNQ2 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 99,177 in DIY & Tools ( See Top 100 in DIY & Tools ) 729 in Mounting Tape |
| Colour | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (72) |
| Date First Available | 13 April 2023 |
| Included components | non |
| Item Weight | 100 g |
| Manufacturer | TEEDEE365 LTD |
| Manufacturer reference | TD_3m_12_pads |
| Material | Acrylic Foam and Plastic (Mushroom-shaped heads) |
| Package Dimensions | 10 x 10 x 2 cm; 100 g |
| Part number | TD_3m_12_pads |
| Plug profile | Sewing |
| Size | 25.4 mm x 2500 mm (1 Roll) |
| Style | Industrial |

## Product Details

- **Brand:** roomwatchman secure your room home & office
- **Colour:** Black
- **Material:** Acrylic Foam and Plastic (Mushroom-shaped heads)
- **Size:** 25.4 mm x 2500 mm (1 Roll)
- **Style:** Industrial

## Images

![Dual Lock SJ3550, Heavy Duty Reclosable Fastener Tape, Waterproof (5X Stronger Than Classic Hook & Loop Tape) (25.4mm x 2.5 Meter) - Image 1](https://m.media-amazon.com/images/I/61hVExP0-3L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ STRONG adhesive. STRONG interlocking. STRONG, STRONG, STRONG.
*by L***N on 2 January 2025*

This tape is superb as it sticks like the preverbal to a blanket. We used the tape around the beginning of October to fix plastic sheeting to our metal gazebo. This was to make the gazebo usable in winter. But to also make it usable in the summer, the sheeting had to be removable. Thus the use of this tape. And to say I am impressed is an understatement. At 4m long by 2.5 m high thses sheets are quite large. Yet having gone through 4 storms with winds gusting to 60mph, not only has the tape not pulled apart, it hasn't unstuck from the sheeting or gazebo either. This stuff HOLDS!!! Do NOT confuse this product with Velco. This is WAY stronger at sticking and holding together. If you want a fixing that will not let go but which you will need to take apart at some point then I can highly recommend this product. A few hints/tips...... Make sure the surface you are going to glue onto is dust and grease free. Ethyl alcohol is great for this. Make sure you are CAREFUL when mounting as you will find it almost impossible to adjust the position should you place it in the wrong location.

### ⭐⭐⭐⭐⭐ Stronger and harder than Liam Gallagher!!
*by J***Y on 11 August 2025*

This stuff is unbelievably strong. The glue on the back of the tape will melt before anything. I use it to stick my guitar effects pedals to my pedalboard and they’re as good as welded to it.

### ⭐⭐⭐⭐ 3M dual lock
*by A***9 on 30 March 2024*

Super tough locking tape that I use sparingly to attach guitar pedals to a pedalboard. Use too much and you ain’t getting it free without a struggle. Good stuff.

## Frequently Bought Together

- 3M Dual Lock SJ3550, Heavy Duty Reclosable Fastener Tape, Waterproof (5X Stronger Than Classic Hook & Loop Tape) (25.4mm x 2.5 meter)
- VELCRO Brand Heavy Duty Stick On Tape Cut-to-Length Industrial Extra Strong Double Sided Hook & Loop Self Adhesive Tape Perfect for Room Décor & Home, Office, Garage Use Black 50mm x 1m
- 3M Dual Lock SJ3550, Heavy Duty Reclosable Fastener Tape, Waterproof (5X Stronger Than Classic Hook & Loop Tape), Black [ROOMWATCHMAN (R)] (25.4mm x 1 Meter)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-13*