---
product_id: 100223598
title: "Fire Block Sealant FB 136, Gray Color, Single Component, High Temperature and Smoke Passage Resistant, 10.1 fl oz Cartridge"
brand: "3m"
price: "€ 26.97"
currency: EUR
in_stock: true
reviews_count: 8
category: "3 M"
url: https://www.desertcart.nl/products/100223598-fire-block-sealant-fb-136-gray-color-single-component-high
store_origin: NL
region: Netherlands
---

# Water-based for easy cleanup Heat resistance up to 2000°F Bonds to concrete, metal, wood & plastic Fire Block Sealant FB 136, Gray Color, Single Component, High Temperature and Smoke Passage Resistant, 10.1 fl oz Cartridge

**Brand:** 3m
**Price:** € 26.97
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal the deal with fireproof confidence!

## Quick Answers

- **What is this?** Fire Block Sealant FB 136, Gray Color, Single Component, High Temperature and Smoke Passage Resistant, 10.1 fl oz Cartridge by 3m
- **How much does it cost?** € 26.97 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/100223598-fire-block-sealant-fb-136-gray-color-single-component-high)

## 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

- • **Unmatched Heat Defense:** Withstands scorching temperatures up to 2000°F, keeping your projects safe under fire’s fiercest test.
- • **Eco-Smart & Easy Cleanup:** Water-based, halogen-free formula ensures quick installation and hassle-free disposal.
- • **Universal Surface Bonding:** Seamlessly adheres to concrete, metal, wood, plastic, and cable jacketing for versatile application.
- • **Fast Tack, Long-Term Strength:** Tack-free in just 15 minutes with minimal shrinkage for durable, lasting fire protection.
- • **Sag-Free Vertical Performance:** Formulated to stay put—no sagging or running in overhead or vertical installations.

## Overview

3M Fire Block Sealant FB 136 is a high-performance, single-component, cementitious fireblock designed for industrial and commercial use. It resists extreme heat up to 2000°F, bonds to multiple surfaces including concrete and metal, and acts as an effective draftstop to reduce air infiltration. Its water-based, halogen-free formula offers easy cleanup and a sag-resistant application, curing fully in 24 hours. Tested to meet ASTM E 84 standards and compliant with IBC and IRC codes, this sealant delivers reliable fire and smoke passage resistance for non-rated construction gaps and penetrations.

## Description

Reliable and Tough Fireblock. We engineered 3M Fire Block FB 136 as a durable fireblock and draftstop. This product seals, fills, insulates and bonds for non-rated residential and commercial construction. Ready-to-use, this fireblock is intended to resist the free passage of flame and by-products of combustion within a concealed space of a floor, ceiling or wall cavity, restricting the movement of air, fire and smoke. This fireblock is tested as a Type V commercial and residential fireblock to ASTM E 84 (modified) and acts as a draftstop to help reduce air infiltration. This ready-to-use product is heat-resistant (up to 240°F/115°C). Recommended Applications 3M Fire Block FB 136 is used to seal interior construction voids around: Wires Pipes HVAC ducts Penetrations in non-rated wood or steel-framed construction Non-rated framing gaps and voids. Seals and Protects. 3M Fire Block FB 136 has been evaluated by the UL evaluation report ER9700-01 and complies with the International Building Code (IBC) and International Residential Code (IRC). This fireblock is tack-free in approximately 15 minutes and features minimal shrinkage and sag-resistant formulation to help ensure longevity, plus a halogen-free formula. This fireblock also provides excellent adhesion that bonds to concrete, brick, metals, wood, plastic and cable jacketing. Strong Fireblocking Solution 3M Fire Block FB 136 is a tough solution that helps seal, fill, insulate and bond for non-rated residential and commercial construction. Discover the benefits of a fireblock that restricts the movement of air, fire and smoke. Enjoy the peace of mind of that comes from a product designed to meet fireblocking codes and requirements.

Review: Nice product.. even at 800°C.. still hanging on. - Im using this stuff to seal up the flanges of a homemade jet engine. High pressure, high temp, and corrosive environment.. it works great.
Review: My flame burnt out - I can no longer start a fire.

## Features

- LIGHTWEIGHT CEMENTITIOUS SEALANT: Provides excellent adhesion
- HEAT-RESISTANT: Up to 2000°F (1093°C)
- BONDS TO A VARIETY OF SURFACES: Including concrete, metals, wood, plastic and cable jacketing
- EASY CLEAN UP WITH WATER: Water-based for easy installation, cleanup and disposal
- STAYS IN PLACE: Will not sag or run in vertical or overhead applications
- INHIBITS AIR CIRCULATION: Acts as a draftstop to help reduce air infiltration
- For industrial/occupational use only. Not for consumer sale or use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005PYXUEY |
| Best Sellers Rank | #11,174 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #41 in Adhesive Caulk #81 in Industrial Sealants |
| Brand | 3M |
| Brand Name | 3M |
| Color | Gray |
| Customer Reviews | 4.3 out of 5 stars 479 Reviews |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00051115165917 |
| Included Components | 3M Fire Block Sealant FB 136, 1 Each |
| Initial Hardening Time | 15 Minutes |
| Item Form | Paste |
| Item Weight | 1 Pounds |
| Liquid Volume | 10.1 Fluid Ounces |
| Manufacturer | 3M |
| Material Type | Halogen-free, Non-Combustible |
| Surface Recommendation | Pipe |
| Temperature Range | 1.38E+3 Degrees Fahrenheit |
| UPC | 051115165917 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** 3M
- **Color:** Gray
- **Full Cure Time:** 24 Hours
- **Item Weight:** 1 Pounds
- **Liquid Volume:** 10.1 Fluid Ounces

## Images

![Fire Block Sealant FB 136, Gray Color, Single Component, High Temperature and Smoke Passage Resistant, 10.1 fl oz Cartridge - Image 1](https://m.media-amazon.com/images/I/41nN0uMkGoL.jpg)

## Questions & Answers

**Q: Is this paintable?**
A: Yes.

**Q: Would this be good to use around a dry stack fireplace where cold air pours in through the cracks?**
A: That's certainly not it's intended purpose. I'm sure there are products that would work better for what you want that would also be less expensive.

**Q: Is it waterproof. I want use between a Weber grill and granite countertop**
A: No

**Q: What happens if this is used in an exterior application?**
A: I used mine in an unusual circumstance, to bond soft decorative brick faces to a high heat painted stainless steel surface (backing to a bio-ethanol fireplace). Even after following instructions for a controlled curing/heating process, the sealant was bonded to the steel nicely and also the soft brick face, but the brick face shrunk slightly, causing the sealant to separate and the brick fell off. Maybe I did something wrong or not long enough. I'd say it is more for an indoor/dry weather free application. Outside it may not dry completely to rain and high humidity. Once bonded and dried completely though it is pretty strong, great adhesion.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice product.. even at 800°C.. still hanging on.
*by P***L on October 28, 2025*

Im using this stuff to seal up the flanges of a homemade jet engine. High pressure, high temp, and corrosive environment.. it works great.

### ⭐⭐⭐⭐⭐ My flame burnt out
*by J***H on February 5, 2026*

I can no longer start a fire.

### ⭐⭐⭐⭐ Fireproof. Cracks though
*by M***W on December 25, 2025*

It’s okay. Definitely very fire proof. It shrinks as it drys though which introduces cracks so you need to do it in passes

## Frequently Bought Together

- 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 Netherlands*
*Store origin: NL*
*Last updated: 2026-03-09*