


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

| 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 |
W**E
Great
Great
Y**.
Dura muy poco, se agrietado y se cae rápido
B**T
Does the job very well as advertised. Easy to use & very reliable. Good price
P**E
Très bon produit qui a rebouché mon pot d’échappement troué, top je suis désormais conforme au CT
M**C
This stuff worked great! If you have the luxury of a little extra time or a heated garage or heat gun I’d take advantage of it because it does take more time than one might think for it to cure. I pretty much used a whole tube (smaller size order option) but I also laid it on thick around the collar area where the muffler meets the exhaust. I live in the northeast so it’s been cold and I wanted the extra strength for the long winter complete with caustic road salts, moisture and frost heaves. It was a great fix to get me over the hump until spring! J-B Weld is a great company with great products!
L**N
Alors oui ca coute un bras mais c'est vraiment efficace pour le coup. Utilisé pour colmater un trou dans mon silencieux intermédiaire sur une Golf, juste frotté un peu avec une brosse sur la visseuse et soudé une plaque vite fait avec un mig et j'ai tout rebouché au JB Weld. Il faut juste attendre un peu que ca prenne et laisser chauffer pour que ca se solidifie. on peut aider avec un décapeur thermique mais si le temps est sec on peut juste le laisser quelques heures voire la nuit et le lendemain ca aura pris et ce sera étanche, j'ai économisé 400 balles
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