---
product_id: 58623362
title: "Armaflex Self Seal Pipe Insulation Lagging Black Nitrile Foam Class O 2m-35mm-25mm-Wall"
brand: "armacell"
price: "£37.83"
currency: GBP
in_stock: true
reviews_count: 3
category: "Armacell"
url: https://www.desertcart.co.uk/products/58623362-armaflex-self-seal-pipe-insulation-lagging-black-nitrile-foam-class
store_origin: GB
region: United Kingdom
---

# Armaflex Self Seal Pipe Insulation Lagging Black Nitrile Foam Class O 2m-35mm-25mm-Wall

**Brand:** armacell
**Price:** £37.83
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Armaflex Self Seal Pipe Insulation Lagging Black Nitrile Foam Class O 2m-35mm-25mm-Wall by armacell
- **How much does it cost?** £37.83 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/58623362-armaflex-self-seal-pipe-insulation-lagging-black-nitrile-foam-class)

## Best For

- armacell enthusiasts

## Why This Product

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

## Description

Insulation Material: Nitrile Foam RubberInsulation Thickness: 25mmSuitable for Pipe Size: 35mm DiameterLength: 2 metresSelf Seal - Yes

Review: Reliable frost protection. Worked perfectly - Did the job perfectly with no issues. I wanted the reassurance of frost protection when running a 32 mm condensate pipe through the loft.
Review: It Moulded Tidily, Even in Difficult Places - It made a tidy and well protected installation, even on a long-established pipe run, where clearances were not ideal.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BFCA8A4 |
| Best Sellers Rank | 147,224 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 253 in Pipe & Tube Insulations |
| Brand | Armacell |
| Country of Origin | United Kingdom |
| Coverage | 0.226 square meters (without R-value or STC rating) |
| Customer Reviews | 4.2 out of 5 stars 12 Reviews |
| Item Thickness | 25 Millimetres |
| Item thickness | 25 Millimetres |
| Manufacturer | Armacell |
| Material | Foam |
| Part Number | AF-CO-25X035-A |
| Recommended Uses For Product | Pipe insulation for 35mm diameter pipes |
| Recommended uses for product | Pipe insulation for 35mm diameter pipes |

## Product Details

- **Brand:** Armacell
- **Item thickness:** 25 Millimetres
- **Manufacturer:** Armacell
- **Material:** Foam
- **Recommended uses for product:** Pipe insulation for 35mm diameter pipes

## Images

![Armaflex Self Seal Pipe Insulation Lagging Black Nitrile Foam Class O 2m-35mm-25mm-Wall - Image 1](https://m.media-amazon.com/images/I/31dK+eBwGLL.jpg)
![Armaflex Self Seal Pipe Insulation Lagging Black Nitrile Foam Class O 2m-35mm-25mm-Wall - Image 2](https://m.media-amazon.com/images/I/61KizW+RmmL.jpg)
![Armaflex Self Seal Pipe Insulation Lagging Black Nitrile Foam Class O 2m-35mm-25mm-Wall - Image 3](https://m.media-amazon.com/images/I/518Tweg4wHL.jpg)

## Questions & Answers

**Q: sorry to be dim, but I don't understand the dimensions in product descriptions. I'm looking for suitable for 25mm dia pipe**
A: Hi
This particular listing has a 35mm bore (for your pipe) and then 25mm thick insulation on either side

**Q: Is this suitable for lagging an external condensation pipe?**
A: its what im using it for

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable frost protection. Worked perfectly
*by A***N on 10 January 2026*

Did the job perfectly with no issues. I wanted the reassurance of frost protection when running a 32 mm condensate pipe through the loft.

### ⭐⭐⭐⭐⭐ It Moulded Tidily, Even in Difficult Places
*by R***S on 31 October 2022*

It made a tidy and well protected installation, even on a long-established pipe run, where clearances were not ideal.

### ⭐⭐ Poor adhesive causes gaps in the seal, allowing frost to enter,
*by M***E on 24 September 2019*

Despite carefully aligning the adhesive areas and firmly pressing together, large area became unstuck. There was plenty of room for the pipe, wrapping was fairly easy. This means I will have to secure using tape. This is a thick insulation, badly let down by poor design or quality control of the adhesive. It is cheap, but expensive to purchase. I would remove & return, but more inconvenience than the money is worth. The third photo shows the degraded insulation I replaced, it was over 3 years old.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.co.uk/products/58623362-armaflex-self-seal-pipe-insulation-lagging-black-nitrile-foam-class](https://www.desertcart.co.uk/products/58623362-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: 2026-05-31*