---
product_id: 75656784
title: "1000NS-CART 10.1 Oz. Fire Barrier Water Tight Sealant (Pack of 1) by 3M"
brand: "3m"
price: "€ 121.98"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/75656784-1000ns-cart-10-1-oz-fire-barrier-water-tight-sealant
store_origin: FI
region: Finland
---

# water-tight seal 3-hour fire protection high-strength bond 1000NS-CART 10.1 Oz. Fire Barrier Water Tight Sealant (Pack of 1) by 3M

**Brand:** 3m
**Price:** € 121.98
**Availability:** ✅ In Stock

## Summary

> Seal the Deal with Safety! 🔒

## Quick Answers

- **What is this?** 1000NS-CART 10.1 Oz. Fire Barrier Water Tight Sealant (Pack of 1) by 3M by 3m
- **How much does it cost?** € 121.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/75656784-1000ns-cart-10-1-oz-fire-barrier-water-tight-sealant)

## 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

- • **🔧 Easy Application:** Non-slump, ready-to-use formula for hassle-free application.
- • **🔥 Unmatched Fire Safety:** Provides up to 3-hour fire protection, ensuring peace of mind.
- • **🛠️ Versatile Adhesion:** Bonds effectively with plastics, metals, fiberglass, and wood.
- • **💧 Superior Water Resistance:** Creates a water-tight seal to prevent leaks and moisture damage.
- • **🌦️ Extreme Environment Ready:** Withstands UV exposure and extreme service conditions.

## Overview

The 3M1000NS-CART Fire Barrier Water Tight Sealant is a high-performance, single-component polyurethane adhesive designed to create robust, water-tight seals while providing up to 3-hour fire protection. Ideal for various materials, it excels in extreme environments, making it a must-have for professionals seeking reliability and safety.

## Description

1000NS-CART 10.1 Oz. Fire Barrier Water Tight Sealant (Pack of 1) by 3M

## Features

- 3M Fire Barrier Sealant is a high-strength, single-component, moisture-curing, gap-filling polyurethane adhesive that creates high strength bonds on a wide variety of materials including plastics, metals, fiberglass and wood. It exhibits high tensile strength, good UV resistance, mid-range Shore A Hardness and high modulus in a wide variety of extreme service environments. Available in cartridge, sausage pack and drum volumes to meet your application needs.
- Purchase Option #1 - Fire Barrier Water Tight Sealant 1000 NS: Is a non-slump, ready-to-use, single component, neutral cure, silicone sealant that cures upon exposure to atmospheric humidity to form a flexible firestop seal. Our water tight sealants help control the spread of fire, smoke and noxious gases before, during and after exposure to fire.
- Purchase Option #2 - Fire Barrier Water Tight Sealant 3000 WT: provides up to 4-hour fire protection in tested and listed systems. It is a gun-grade, intumescent, silicone, elastomeric sealant that cures upon exposure to the atmosphere to form a monolithic flexible firestop seal. Properly installed, this sealant helps control the spread of fire, smoke and noxious gasses before, during and after exposure to fire and exhibits good adhesion to a full range of construction substrates.
- Purchase Option #3 - Fire Barrier Sealant CP 25WB+: Is a red, one-component, gun-grade, latex-based, intumescent firestop sealant. This fire barrier sealant helps control the spread of fire, smoke and noxious gases before, during and after exposure to a fire.
- Purchase Option #4 - Fire Barrier Sealant IC 15WB+: Is a yellow, one-part, gun-grade, intumescent firestop sealant that provides up to 3-hour fire protection in tested and listed systems. This helps prevent the spread of fire, smoke and noxious gas, while also acting as an acoustic barrier to help minimize noise transfer.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | 3M |
| Part number | 051115115356 |
| Item Weight | 204 g |
| Product Dimensions | 20.32 x 5.08 x 30.48 cm; 204.11 g |
| Item model number | 1000-N/S-10.1OZ |
| Size | 10.1 fl. oz. cartridge / Water Tight / 3 hour |
| Colour | Grey |
| Style | Compact |
| Material | Polyurethane |
| Item Package Quantity | 1 |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Color:** Gray
- **Brand:** 3M
- **Item Weight:** 204.11 Grams
- **Liquid Volume:** 10.1 Fluid Ounces
- **Full Cure Time:** 2 Hours

## Images

![1000NS-CART 10.1 Oz. Fire Barrier Water Tight Sealant (Pack of 1) by 3M - Image 1](https://m.media-amazon.com/images/I/41tSuPZ09UL.jpg)

## Questions & Answers

**Q: i need fire resistant whit caulk to caulk fireplace**
A: It’s more of a light gray than white

**Q: does it stay pliable after it dries or does it get hard like mortar?**
A: Stays pliable.  This can be used like a silicone caulking but with fire rating.

**Q: Thinking of using this to fill in holes in my truck's firewall. Any cons?**
A: I would contact 3M customer support

**Q: is this usable for exterior applications?**
A: 3M 1000NS-CART 10.1 Oz. Fire Barrier Water Tight Sealant helps prevent further damage during new construction. It is best for wall or vertical applications. Dynamic and static construction joints.

## Frequently Bought Together

- 3M Fire Barrier Water Tight Sealant 1000 NS, Gray Color, Non-Slump, Ready-To-Use, Single Component, Neutral Cure, 10.1 fl oz Cartridge
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- Bolt Dropper 5/8" Stainless Flat Washer (100 Pack), 1-1/2" OD 18-8 (304) Stainless Steel, Suitable for Factories Repair, Kitchens, Shops, and Outdoor Construction by Bolt Dropper

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**Shop now:** [https://www.desertcart.fi/products/75656784-1000ns-cart-10-1-oz-fire-barrier-water-tight-sealant](https://www.desertcart.fi/products/75656784-1000ns-cart-10-1-oz-fire-barrier-water-tight-sealant)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-19*