---
product_id: 58623340
title: "Armaflex Self Seal Pipe Insulation Lagging Black Nitrile Foam Class O 2m-42mm-13mm-Wall"
brand: "armaflex"
price: "£20.72"
currency: GBP
in_stock: true
reviews_count: 9
category: "Armaflex"
url: https://www.desertcart.co.uk/products/58623340-armaflex-self-seal-pipe-insulation-lagging-black-nitrile-foam-class
store_origin: GB
region: United Kingdom
---

# Class O fire safety rated 30% faster installation 42mm thick premium insulation Armaflex Self Seal Pipe Insulation Lagging Black Nitrile Foam Class O 2m-42mm-13mm-Wall

**Brand:** armaflex
**Price:** £20.72
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay warm, stay safe, install faster — insulation that works as hard as you do!

## Quick Answers

- **What is this?** Armaflex Self Seal Pipe Insulation Lagging Black Nitrile Foam Class O 2m-42mm-13mm-Wall by armaflex
- **How much does it cost?** £20.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/58623340-armaflex-self-seal-pipe-insulation-lagging-black-nitrile-foam-class)

## Best For

- armaflex enthusiasts

## Why This Product

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

## Key Features

- • **Speedy Setup:** Self-seal design slashes installation time by up to 30%, saving you hours
- • **Condensation Blocker:** Built-in vapor barrier prevents costly moisture damage
- • **Fire-Safe Confidence:** Class O rating meets UK Building Regulations for peace of mind
- • **Versatile Application:** Ideal for residential, commercial & industrial heating and cooling systems
- • **Ultimate Thermal Shielding:** 42mm thick nitrile foam locks in temperature, perfect for hot & cold pipes

## Overview

Armaflex Self Seal Pipe Insulation Lagging is a 42mm thick black nitrile foam designed for efficient thermal insulation of hot and cold pipes. It features a Class O fire safety rating compliant with UK regulations and an integrated vapor barrier to prevent condensation. The self-sealing design reduces installation time by up to 30%, making it a top choice for residential, commercial, and industrial heating and cooling systems.

## Description

Free delivery and returns on all eligible orders. Shop Armaflex Self Seal Pipe Insulation Lagging Black Nitrile Foam Class O 2m-42mm-13mm-Wall.

Review: The Best - This is the best insulation for outside pipes in the frosty days
Review: Four Stars - very useful. did the job just great

## Features

- Suitable for cold and hot lines, heating systems and cooling hoses
- For copper tubes not included
- Class oder Feuer as for UK Building Regulations
- Built by vapor barrier prevents condensation
- Simple application reduce design costs and time by up to 30%

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BFCA8EU |
| Best Sellers Rank | 41,924 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 82 in Pipe & Tube Insulations |
| Brand | Armaflex |
| Coverage | 2 meters |
| Customer Reviews | 4.4 out of 5 stars 41 Reviews |
| Item Dimensions L x W | 2L x 0.04W metres |
| Item Thickness | 42 Millimetres |
| Item thickness | 42 Millimetres |
| Manufacturer | Armaflex |
| Material | Armaflex |
| Model Number | C0-13x042-A |
| Part Number | C0-13x042-A |
| Product dimensions | 2L x 0.04W metres |
| Recommended Uses For Product | Pipe insulation and heating and cooling systems in residential, commercial and industrial environments |
| Recommended uses for product | Pipe insulation and heating and cooling systems in residential, commercial and industrial environments Recommended uses for product Pipe insulation and heating and cooling systems in residential, commercial and industrial environments See more |

## Product Details

- **Brand:** Armaflex
- **Item thickness:** 42 Millimetres
- **Material:** Armaflex
- **Product dimensions:** 2L x 0.04W metres

## Images

![Armaflex Self Seal Pipe Insulation Lagging Black Nitrile Foam Class O 2m-42mm-13mm-Wall - Image 1](https://m.media-amazon.com/images/I/41gzhwX0EqL.jpg)

## Questions & Answers

**Q: Is this lagging suitable for exterior use, in this case to go around a pond pump pipe that is situated above ground?**
A: Yes this can be used outside. We use it on the over flow pipe from the boiler as it stopped the boiler working when it froze up. This lagging is super flexible and did the job during the serve weather we had.

**Q: I would like to know if 42mm is the id or od?**
A: If a tube has been listed as 42mm X 13mm that's usually the ID and followed by the thickness. However manufacturers can vary on finish give or take 1mm either side. 

Hope that helps

## Customer Reviews

### ⭐⭐⭐⭐⭐ The Best
*by 2***Y on 3 June 2025*

This is the best insulation for outside pipes in the frosty days

### ⭐⭐⭐⭐ Four Stars
*by M***S on 8 September 2015*

very useful. did the job just great

### ⭐⭐⭐⭐⭐ Perfect for insulating a condensate pipe.
*by S***E on 31 May 2025*

Perfect for insulating a condensate pipe. Good quality, price and fast delivery

## Frequently Bought Together

- Armaflex Self Seal Pipe Insulation Lagging Black Nitrile Foam Class O 2m-42mm-13mm-Wall
- Armaflex Selfseal (13 WALL x35 PIPE) Class O Pipe Insulation, 13mm wall, suits 35mm diameter pipe, 2 metre length

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**Shop now:** [https://www.desertcart.co.uk/products/58623340-armaflex-self-seal-pipe-insulation-lagging-black-nitrile-foam-class](https://www.desertcart.co.uk/products/58623340-armaflex-self-seal-pipe-insulation-lagging-black-nitrile-foam-class)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-08-28*