---
product_id: 691747276
title: "3M FB-Foam Fire Block Sealant,12 oz.,Orange,Aerosol"
brand: "3m"
price: "R1974"
currency: ZAR
in_stock: true
reviews_count: 5
category: "3 M"
url: https://www.desertcart.co.za/products/691747276-3m-fb-foam-fire-block-sealant-12-oz-orange-aerosol
store_origin: ZA
region: South Africa
---

# Up to 240°F heat resistance Adheres to concrete, brick, metal & wood Cures in 5 minutes, expands 200% 3M FB-Foam Fire Block Sealant,12 oz.,Orange,Aerosol

**Brand:** 3m
**Price:** R1974
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal the deal on safety — don’t let fire catch you off guard!

## Quick Answers

- **What is this?** 3M FB-Foam Fire Block Sealant,12 oz.,Orange,Aerosol by 3m
- **How much does it cost?** R1974 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/691747276-3m-fb-foam-fire-block-sealant-12-oz-orange-aerosol)

## Best For

- 3m enthusiasts

## Why This Product

- Trusted 3m brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Universal Adhesion:** Bonds seamlessly to concrete, metal, wood, plastic & more
- • **Fire-Resistant Shield:** Blocks heat and flames up to 240°F for ultimate safety
- • **Rapid Expansion & Cure:** Seals gaps quickly with 200% volume expansion in just 5 minutes
- • **Code-Approved Confidence:** Meets IBC & IRC fire protection standards for peace of mind
- • **Durable & Shrink-Resistant:** Long-lasting foam with minimal shrinkage ensures lasting protection

## Overview

3M FB-Foam Fire Block Sealant is a high-performance, code-compliant fire-blocking aerosol foam designed to seal penetrations in walls, floors, and ceilings. It adheres to multiple surfaces, expands rapidly to fill gaps, resists heat up to 240°F, and cures in 5 minutes with minimal shrinkage, providing durable fire and smoke protection for residential and commercial buildings.

## Description

3M fire block foam is used to seal empty trees in the interior design, pipes, cables, unacceptable frame columns and hollow wood or steel frame structures in penetrations. Tested as a brand block type for residential building according to ASTM E 84 (Modifiation); Excellent adhesion to concrete, brick, metal, wood, plastic and cable covers. Minimal shrinkage; Durable foam consumes heat (up to 240F/115C); Acts as a windshield to reduce air penetration; Wärmdämf foam offers a typical R rating of 4 to 5 / inches (25.4mm) Fireblock foam is ready to use (no mixing required); Free fantasy within 5 minutes; Seals up to 200% of its volume quickly and effectively. Research fire protection requirements of the International Building Code (IBC) and International Life Code (IRC); with Minimum Shrinkage and Dependent Formulation, it has a long service life.

Review: Fire resistant peace of mind. - I have a wood stove in my shop. I use this where the chimney goes through the side wall. I spray it heavy to ensure no sparks escape. Easy to use and lasts longer than the sheet metal chimney pipes. Peace of mind when I have the stove fired up for long periods.
Review: Worked perfectly for what I needed it for. - I used this for the area that my copper pipes came through the floor near my washer. There was also a draft coming in from there. No longer os there a draft, or ants coming in as I have a dirt basement being in an older home in northeast pa, this is ant season here in the spring. They will still find a way up I'm sure. It just won't be there lol. Great product. Easy to clean when still wet. So if you make a mess or put it somewhere you didn't want it, simply wipe it up quick and it will all come up easily.

## Features

- Research fire protection requirements of International Building Code (IBC) and International Life Code (IRC); Long life with minimum shrinkage and dependent formulation.
- 3M US

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008KNP928 |
| Best Sellers Rank | #70,063 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #306 in Hardware Sealers |
| Brand | 3M |
| Brand Name | 3M |
| Country of Publication | USA |
| Customer Reviews | 4.4 out of 5 stars 469 Reviews |
| Global Trade Identification Number | 00051115549076 |
| Item Weight | 14.4 Ounces |
| Manufacturer | 3M |
| Manufacturer Part Number | 00051115549076 |
| Material | Foam |
| Material Type | Foam |
| Model Number | 98040056149 |
| Number of Packs | 1 |
| Recommended Uses For Product | Fire blocking and sealing penetrations in walls, floors, and ceilings to prevent the spread of fire and smoke Recommended Uses For Product Fire blocking and sealing penetrations in walls, floors, and ceilings to prevent the spread of fire and smoke See more |
| UPC | 051115549076 |

## Product Details

- **Colour:** Orange
- **Brand:** 3M
- **Item Weight:** 14.4 Ounces
- **Liquid Volume:** 12 Fluid Ounces
- **Item Form:** Foam

## Images

![3M FB-Foam Fire Block Sealant,12 oz.,Orange,Aerosol - Image 1](https://m.media-amazon.com/images/I/616-nQx2VmL.jpg)
![3M FB-Foam Fire Block Sealant,12 oz.,Orange,Aerosol - Image 2](https://m.media-amazon.com/images/I/71PxTxJeGcL.jpg)
![3M FB-Foam Fire Block Sealant,12 oz.,Orange,Aerosol - Image 3](https://m.media-amazon.com/images/I/7131-Vvx-9L.jpg)
![3M FB-Foam Fire Block Sealant,12 oz.,Orange,Aerosol - Image 4](https://m.media-amazon.com/images/I/81O1YLfigmL.jpg)

## Questions & Answers

**Q: Will this hold up to tempetatures up to 320 degrees??**
A: No it is only rated to 240 degrees Fahrenheit

**Q: Can this be painted. If so, what kind of paint?**
A: Yes any

**Q: can this be painted over?**
A: This is not a product that should be exposed such that they finish paint coat would be necessary. It should be used in the rafters and in areas you’re trying to fire block to prevent the spread of flames in an emergency situation. I have no idea if you can paint this, because I don’t think you should ever need to.

**Q: Closed cell or open cell?**
A: Should be on the label imo because of its density I would say closed I've seen open cell nowhere near as thick as this you would have to cut this stuff off open cell I can rip w my hands

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fire resistant peace of mind.
*by R***1 on 2 June 2026*

I have a wood stove in my shop. I use this where the chimney goes through the side wall. I spray it heavy to ensure no sparks escape. Easy to use and lasts longer than the sheet metal chimney pipes. Peace of mind when I have the stove fired up for long periods.

### ⭐⭐⭐⭐⭐ Worked perfectly for what I needed it for.
*by T***M on 22 March 2023*

I used this for the area that my copper pipes came through the floor near my washer. There was also a draft coming in from there. No longer os there a draft, or ants coming in as I have a dirt basement being in an older home in northeast pa, this is ant season here in the spring. They will still find a way up I'm sure. It just won't be there lol. Great product. Easy to clean when still wet. So if you make a mess or put it somewhere you didn't want it, simply wipe it up quick and it will all come up easily.

### ⭐⭐⭐⭐ Foam works but not fire proof
*by J***K on 18 August 2024*

Product worked but label did say fire retardant. Fills cracks though

## Frequently Bought Together

- 3M Fire Block Foam FB-Foam, Orange Color, Ready-To-Use, In-Place, 12 fl oz Can
- 3M Fire Barrier Sealant CP 25WB+, Red Color, One-Component, Gun-Grade, Latex-Based, Intumescent Material, 10.1 fl oz Cartridge
- 3M Fire Block Sealant FB 136, Gray Color, Single Component, High Temperature and Smoke Passage Resistant, 10.1 fl oz Cartridge

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-08-17*