---
product_id: 537677417
title: "3M Dual Lock SJ3550 1\"×4ft Black 1 Pack Reclosable Fastener Mounting Tape Interlocking Mushroom Shaped Strong Adhesive Hook Lock Sticy Tape for Indoor and Outdoor(DB25120)"
brand: "bulina"
price: "$48"
currency: NZD
in_stock: true
reviews_count: 8
url: https://www.desertcart.nz/products/537677417-3m-dual-lock-sj3550-1-4ft-black-1-pack-reclosable
store_origin: NZ
region: New Zealand
---

# Reclosable design 200°F temp resistance Strong adhesive bond 3M Dual Lock SJ3550 1"×4ft Black 1 Pack Reclosable Fastener Mounting Tape Interlocking Mushroom Shaped Strong Adhesive Hook Lock Sticy Tape for Indoor and Outdoor(DB25120)

**Brand:** bulina
**Price:** $48
**Availability:** ✅ In Stock

## Summary

> 🔧 Fasten with confidence, unfasten with ease!

## Quick Answers

- **What is this?** 3M Dual Lock SJ3550 1"×4ft Black 1 Pack Reclosable Fastener Mounting Tape Interlocking Mushroom Shaped Strong Adhesive Hook Lock Sticy Tape for Indoor and Outdoor(DB25120) by bulina
- **How much does it cost?** $48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/537677417-3m-dual-lock-sj3550-1-4ft-black-1-pack-reclosable)

## Best For

- bulina enthusiasts

## Why This Product

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

## Key Features

- • **🕒 Quick Installation:** Achieve 50% strength in just 20 minutes!
- • **🔗 Versatile Fastening:** Say goodbye to screws and bolts!
- • **🌍 Indoor & Outdoor Use:** Perfect for any environment!
- • **🔊 Audible Snap Closure:** Hear the reliability in every click!
- • **🧼 Residue-Free Removal:** Clean removal without a trace!

## Overview

The 3M Dual Lock SJ3550 is a high-performance reclosable fastener tape designed for both indoor and outdoor applications. Featuring interlocking mushroom-shaped heads, it provides a strong, durable bond to various substrates, including metals and plastics. With a temperature resistance of up to 200°F and a quick installation process, this tape is perfect for those seeking a reliable fastening solution without the hassle of traditional methods.

## Description

Full description not available

## Features

- FEATURE: Dual Lock Reclosable Fastener SJ3550 is the convenient alternative to traditional fastening methods, such as screws, nuts or bolts. It is designed to deliver a durable, reclosable fastening solution (which can be opened and closed multiple times) which bonds to a variety of substrates including metals and plastics such as acrylics, polycarbonate and ABS.
- HIGH QUALITY: Black, interlocking mushroom-shaped heads (250 stem density per square inch) provide strong, reliable and durable fastening that can be opened and closed multiple times. White, acrylic, conformable foam tape bonds well to a variety of substrates including metals and plastics such as acrylics, polycarbonate and ABS. Strong fastener secures with an audible snap, verifying closure. Features good temperature resistance of 200°F (93°C).
- APPLICATION: This SJ3550 dual lock mushroom clasp uses an acrylic adhesive to bond to a range of high surface energy materials, including some plastics, metals, glass and lacquered surfaces. It enables quick and easy installation without the need for mechanical mounting. After bonding, the interlocked mushroom stems can be fixed, spiral and rivet, but they can be easily separated and accessible to the fixed objects.
- INSTALLATION AND REMOVAL: At room temperature, approximately 50% of the ultimate strength will be achieved after 20 minutes, 90% after 24 hours and 100% after 72 hours. Spraying alcohol on the tape then it is easy to peel off. Please clean the bonding surface and do not touch the stick layer before using, if anything touched the stick layer. It will peel away.
- BOND SMOOTH SURFACE: Bonds most painted metal and plastic without surface residue or abrading. Specially formulated synthetic adhesive bonds most paints and powder coats, as well as window materials such as glass, acrylic, and polycarbonate, stone and wood.

## Product Details

- **Brand:** Bulina
- **Color:** Black
- **Material:** Acrylic
- **Size:** 1"×4ft
- **Style:** 1 Pack

## Images

![3M Dual Lock SJ3550 1"×4ft Black 1 Pack Reclosable Fastener Mounting Tape Interlocking Mushroom Shaped Strong Adhesive Hook Lock Sticy Tape for Indoor and Outdoor(DB25120) - Image 1](https://m.media-amazon.com/images/I/71UdL7Q4xTL.jpg)

## Available Options

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

## Questions & Answers

**Q: Because it's mated, is the actual usable length 1/2 of the length listed?**
A: Yes.  This product is all I use on my pedalboards.

**Q: is the length described refering to the actual mounting length? or in reality one gets half because you need to use two pieces of the tape?**
A: It is the actual length of the roll. There are different types of Dual Lock, allowing a person to mix and match types allowing for different amounts of adhesion between two devices.

As an example, you may want less adhesion for a removable TV remote control mounted to a wall, vs mounting a IP-TV permanently to a surface behind the display. This is doble by mixing and matching Dual Lock products.

**Q: Does the adhesive get soft when it warms? I want to use in a window to hang foil/foam insulation. Hook/loop adhesives tend to let go when sun hits it.**
A: It will if exposed to direct sunlight.

**Q: is thisw waterproof?**
A: Hard to say without knowing the intended application. The construction of the hook and loop is entirely plastic so yes there. The adhesive is very strong however I doubt it would withstand constant submersion. If were talking a bit of rain here or there. I'd bet it would last through a season, depending on the application surface. Make sure its clean and dry and kept dry for a few days until it is "set". Hope that helps

## Customer Reviews

### ⭐⭐⭐⭐⭐ Painted brick
*by T***D on May 23, 2025*

Best solution I've found for hanging framed pictures on a painted brick wall. I've bought these multiple times from different vendors. Great product.

### ⭐⭐⭐⭐⭐ Excellent and Useful Product
*by C***C on April 16, 2025*

This is not the first time I am buying this product. It is very useful and well made. It has a very strong hold. It isn't a hook and loop (velcro) which wears out every time one peels them apart. This is called a dual lock, and there are no loops to wear out. I've been shopping at TEMU almost everyday for months now and this is one of the very few items Amazon sells for less than TEMU. I was actually surprised.

### ⭐⭐⭐⭐⭐ 3M dual lock reusable stick on tape
*by D***N on May 2, 2025*

My home will never be without this 3M dual lock reclosable stick on tape. It is sturdy and the adhesive on it is amazing. I usually keep a roll of black and a roll of clear in my cabinet at all times.

## Frequently Bought Together

- 3M Dual Lock SJ3550 1"×4ft Black 1 Pack Reclosable Fastener Mounting Tape Interlocking Mushroom Shaped Strong Adhesive Hook Lock Sticy Tape for Indoor and Outdoor(DB25120)
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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-24*