---
product_id: 408862331
title: "J-B Weld MufflerSeal Muffler Cement Plastic Tube 12 oz., Model Number: 37912"
brand: "j-b weld"
price: "$62.30"
currency: USD
in_stock: true
reviews_count: 6
category: "J B Weld"
url: https://www.desertcart.us/products/408862331-j-b-weld-mufflerseal-muffler-cement-plastic-tube-12-oz
store_origin: US
region: United States of America
---

# Cures fully in 24 hours or faster with heat Resists up to 700°F Iron reinforced for durable sealing J-B Weld MufflerSeal Muffler Cement Plastic Tube 12 oz., Model Number: 37912

**Brand:** j-b weld
**Price:** $62.30
**Availability:** ✅ In Stock

## Summary

> 🔥 Seal the deal with iron-strong heat resistance!

## Quick Answers

- **What is this?** J-B Weld MufflerSeal Muffler Cement Plastic Tube 12 oz., Model Number: 37912 by j-b weld
- **How much does it cost?** $62.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/408862331-j-b-weld-mufflerseal-muffler-cement-plastic-tube-12-oz)

## Best For

- j-b weld enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Ready:** 12 oz tube fits easily in your toolkit for on-the-go repairs and maintenance.
- • **Trusted by Pros:** J-B Weld quality with 4.3-star rating from over 1,400 users—join the community of confident fixers.
- • **Heat-Defying Seal:** Withstands extreme exhaust temperatures up to 700°F for long-lasting performance.
- • **Iron-Clad Strength:** Reinforced paste formula ensures a tough, crack-resistant bond on mufflers and pipe joints.
- • **Dual Cure Flexibility:** Choose slow cure for precision or fast heat cure to get back on the road quicker.

## Overview

J-B Weld MufflerSeal is a 12 oz iron-reinforced paste designed to seal mufflers, pipe joints, and exhaust systems. It resists temperatures up to 700°F and cures either naturally within 24 hours or rapidly with heat application, providing a durable, crack-resistant bond trusted by professionals and DIYers alike.

## Description

MufflerSeal Muffler Cement Plastic Tube 12 oz.

Review: Great - Great
Review: Dura muy poco, se agrietado y se cae rápido

## Features

- J-B Weld Muffler Seal: MufflerSeal is an iron reinforced paste designed to seal mufflers, pipe joints and exhaust systems. MufflerSeal can resists up to 700 F.
- Cure Process: MufflerSeal can cure in two ways: By allowing the product to fully harden after it has been applied which can take up to 24 hours (time may vary based on cold or humid work environments) or MufflerSeal can be cured through heat application. You will be able to tell when the product is cured once it is hard.
- Projects: Mufflers, Pipe Joints and Exhaust Systems.
- Package Weight: 12.5 ounces

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B084T8BW18 |
| ASIN  | B084T8BW18 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #126,639 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #93 in Contact Cements |
| Color | Dark Gray |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,445) |
| Customer reviews | 4.3 4.3 out of 5 stars (1,445) |
| Date First Available | 1 January 2024 |
| Date First Available  | 1 January 2024 |
| Department  | unisex-adult |
| Included components | Muffler Cement |
| Item Package Quantity | 1 |
| Item Weight | 340 g |
| Item model number | 37912 |
| Item model number  | 37912 |
| Manufacturer | J-B Weld |
| Manufacturer  | J-B Weld |
| Material | Iron Reinforced Paste |
| Part number | 37912 |
| Product Dimensions | 19.05 x 14.94 x 13.97 cm; 340.19 g |
| Product Dimensions  | 19.05 x 14.94 x 13.97 cm; 340.19 g |
| Size | 12 OUNCES |
| Special Features | Iron reinforced paste for high-temperature sealing |
| Specific uses | Auto, Repair |
| Style | Compact |

## Product Details

- **Brand:** J-B Weld
- **Item form:** Putty
- **Material:** Iron Reinforced Paste
- **Special features:** Iron reinforced paste for high-temperature sealing
- **Specific uses for product:** Auto, Repair

## Images

![J-B Weld MufflerSeal Muffler Cement Plastic Tube 12 oz., Model Number: 37912 - Image 1](https://m.media-amazon.com/images/I/61YGmR+28FL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great
*by W***E on 15 July 2025*

Great

### ⭐ Review
*by Y***. on 17 December 2024*

Dura muy poco, se agrietado y se cae rápido

### ⭐⭐⭐⭐⭐ Review
*by B***T on 11 January 2026*

Does the job very well as advertised. Easy to use & very reliable. Good price

## Frequently Bought Together

- J-B Weld MufflerSeal Muffler Cement Plastic Tube 12 oz., Model Number: 37912
- J-B Weld ExhaustWeld 2" x 72" Repair Wrap, White
- J-B Weld 37901 ExtremeHeat High Temperature Resistant Metallic Paste - 3 oz

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/408862331-j-b-weld-mufflerseal-muffler-cement-plastic-tube-12-oz](https://www.desertcart.us/products/408862331-j-b-weld-mufflerseal-muffler-cement-plastic-tube-12-oz)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-08*