--- product_id: 408862331 title: "MufflerSeal Muffler Cement Plastic Tube 12 oz., Model Number: 37912" brand: "j-b weld" price: "$54.44" currency: USD in_stock: true reviews_count: 6 category: "J B Weld" url: https://www.desertcart.us/products/408862331-mufflerseal-muffler-cement-plastic-tube-12-oz-model-number-37912 store_origin: US region: United States of America --- # Cures fully in 24 hours Resists up to 700°F Iron reinforced paste MufflerSeal Muffler Cement Plastic Tube 12 oz., Model Number: 37912 **Brand:** j-b weld **Price:** $54.44 **Availability:** ✅ In Stock ## Summary > 🔥 Seal the deal on your exhaust – no leaks, no limits! ## Quick Answers - **What is this?** MufflerSeal Muffler Cement Plastic Tube 12 oz., Model Number: 37912 by j-b weld - **How much does it cost?** $54.44 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-mufflerseal-muffler-cement-plastic-tube-12-oz-model-number-37912) ## 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 - • **Heatproof Hero:** Withstands extreme exhaust temps up to 700°F for lasting durability. - • **Pro-Grade Putty:** Medium-high viscosity ensures easy application and strong adhesion on metal surfaces. - • **Rust-Busting Seal:** Iron-reinforced formula fills cracks and holes, restoring muffler integrity instantly. - • **Trusted by Thousands:** 4.3-star rating from 1,600+ users proves it’s the go-to fix for exhaust repairs. - • **Dual Cure Flexibility:** Choose between natural 24-hour curing or rapid heat activation to fit your schedule. ## Overview J-B Weld MufflerSeal is a 12 oz iron-reinforced putty designed to seal mufflers, pipe joints, and exhaust systems. It resists temperatures up to 700°F and cures either naturally in 24 hours or quickly with heat. Ideal for professional-grade auto repairs, it offers a durable, rust-filling solution trusted by thousands of users. ## Description MufflerSeal Muffler Cement Plastic Tube 12 oz. Review: Great - Great Review: Excellent - Good product. I fixed my car silencer sound by filling the compund to the cracks and holes formed due to rust ## 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 | | Best Sellers Rank | #164,497 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #110 in Contact Cements | | Brand | J-B Weld | | Brand Name | J-B Weld | | Color | black | | Colour | black | | Compatible Material | Metal | | Container Type | Tube | | Customer Reviews | 4.3 out of 5 stars 1,629 Reviews | | Full Cure Time | 24 Hours | | Included Components | Muffler Cement | | Item Form | Putty | | Item Package Quantity | 1 | | Item Type Name | Muffler Sealer | | Item Weight | 12 Ounces | | Item form | Putty | | Manufacturer | J-B Weld | | Material | Iron Reinforced Paste | | Material Type | Iron Reinforced Paste | | Model | 37912 | | Other Special Features of the Product | Iron reinforced paste for high-temperature sealing | | Part Number | 37912 | | Special features | Iron reinforced paste for high-temperature sealing | | Specific Uses For Product | Auto, Repair | | Specific uses for product | Auto, Repair | | UPC | 043425379122 | | Unit Count | 12 Grams | | Viscosity Level | Medium to High | | Volume | 354.88 Milliliters | | Water Resistance Level | Not Water Resistant | ## 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 ![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 ### ⭐⭐⭐⭐⭐ Excellent *by T***M on 23 June 2026* Good product. I fixed my car silencer sound by filling the compund to the cracks and holes formed due to rust ### ⭐⭐⭐ No resiste la vibración *by C***S on 10 August 2023* Se abre muy fácil la ranura si hay vibración ## 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-mufflerseal-muffler-cement-plastic-tube-12-oz-model-number-37912](https://www.desertcart.us/products/408862331-mufflerseal-muffler-cement-plastic-tube-12-oz-model-number-37912) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-30*