J-B WELD MUFFLERSEAL MUFFLER CEMENT - 6 OZIron-reinforced muffler cement that withstands exhaust system temperatures up to 850 deg F when fully cured. Seals and repairs cracks, gaps, joints, and seams on mufflers, exhaust pipes, and other high-temperature automotive and machine parts.
- Temperature rating: up to 850 deg F (when fully cured)
- Iron-reinforced, metal-containing paste
- Set time: 2-4 hours
- Full cure: 24 hours
- Cures to a dark gray, cement-like hardness
- 6 oz plastic tube
- For mufflers, exhaust pipes, joints, seams, and cracks