---
product_id: 20016780
title: "3M(TM) Fire Barrier Sealant CP 25WB+, 20 fl. oz., Sausage, 10/case"
brand: "3m"
price: "¥71271"
currency: JPY
in_stock: true
reviews_count: 2
category: "3 M"
url: https://www.desertcart.jp/products/20016780-3m-tm-fire-barrier-sealant-cp-25wb-20-fl-oz
store_origin: JP
region: Japan
---

# Expands 3x volume at 1000°F+ Up to 4-hour UL firestop rating No mixing, sag-resistant easy apply 3M(TM) Fire Barrier Sealant CP 25WB+, 20 fl. oz., Sausage, 10/case

**Brand:** 3m
**Price:** ¥71271
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal the deal, stop the spread — fireproof your space like a pro!

## Quick Answers

- **What is this?** 3M(TM) Fire Barrier Sealant CP 25WB+, 20 fl. oz., Sausage, 10/case by 3m
- **How much does it cost?** ¥71271 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/20016780-3m-tm-fire-barrier-sealant-cp-25wb-20-fl-oz)

## 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

- • **Mess-Free Efficiency:** Latex-based, no mixing required, and sag-resistant formula means fast, clean application every time.
- • **Code-Ready Compliance:** Meets building codes for mechanical service penetrations, keeping your projects inspection-ready and on schedule.
- • **Versatile Application:** Perfect for HVAC ducts, pipes, cables, and more—one sealant to cover all your firestop needs.
- • **Fire-Resistant Expansion:** Seals and expands to block flames, tripling volume above 1000°F for ultimate fire barrier protection.
- • **Certified 4-Hour Firestop:** Trusted in hundreds of UL systems, ensuring compliance and peace of mind for critical safety standards.

## Overview

3M Fire Barrier Sealant CP 25WB+ is a high-performance, latex-based intumescent sealant designed to expand up to three times its dried volume at temperatures above 1000°F. It offers up to 4-hour UL firestop ratings across hundreds of certified systems, making it ideal for sealing HVAC ducts, pipes, cables, and other penetrations in rated walls and floors. With a sag-resistant, no-mix formula, it ensures quick, clean application while meeting stringent building code requirements.

## Description

High-performance latex-based intumescent firestop sealant.

Review: Very good - Very good
Review: Huge Mess - One of them had exploded in the case. Huge mess.

## Features

- BUILDING CODE COMPLIANCE – seals openings through fire barriers where mechanical services pass through
- HELPS PREVENT FIRE SPREAD - capable of expanding a minimum of 3 times its dried volume when exposed to temperatures above 1000°F (538°C)
- ONE PRODUCT, MANY USES – listed in hundreds of UL Firestop systems with up to 4-hour ratings
- VARIETY OF APPLICATIONS - HVAC ducts and vents, pipes, blank openings, cables, through-penetrations, busways, combos, rated wall, floor and floor-ceiling assemblies and more
- EASY AND CLEAN APPLICATION – with no mixing required and sag-resistant properties, it is simple to apply and doesn’t make a mess

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00MJ9GDZG |
| Best Sellers Rank | #114,278 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #500 in Industrial Sealants |
| Brand | 3M |
| Color | Sausage |
| Date First Available | August 8, 2014 |
| Item Form | Fl |
| Item Weight | 18 pounds |
| Item dimensions L x W x H | 14.29 x 9.88 x 4.29 inches |
| Item model number | CP-25WB+20oz |
| Manufacturer | 3M |
| Material | Rubber |
| Number of Items | 10 |
| Product Dimensions | 14.29 x 9.88 x 4.29 inches |
| Style | Mechanical |
| Surface Recommendation | Pipe |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** 3M
- **Item Weight:** 18 Pounds
- **Item dimensions L x W x H:** 14.29 x 9.88 x 4.29 inches
- **Material:** Rubber
- **Style:** Mechanical

## Images

![3M(TM) Fire Barrier Sealant CP 25WB+, 20 fl. oz., Sausage, 10/case - Image 1](https://m.media-amazon.com/images/I/81HPQtdG3FL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very good
*by J***. on March 30, 2021*

Very good

### ⭐⭐ Huge Mess
*by B***. on April 15, 2025*

One of them had exploded in the case. Huge mess.

## Frequently Bought Together

- 3M(TM) Fire Barrier Sealant CP 25WB+, 20 fl. oz., Sausage, 10/case
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**Shop now:** [https://www.desertcart.jp/products/20016780-3m-tm-fire-barrier-sealant-cp-25wb-20-fl-oz](https://www.desertcart.jp/products/20016780-3m-tm-fire-barrier-sealant-cp-25wb-20-fl-oz)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-24*