J-B Weld 8297 HighHeat 500 Degree Epoxy Putty Stick - 4 oz. - JB Weld

The J-B Weld 8297 HighHeat 500 Degree Epoxy Putty Stick (Model 8298U) provides a professional-grade, hand-mixable solution for permanent repairs on automotive and industrial components exposed to sustained high temperatures. Engineered for continuous service up to 500°F (260°C), this high-heat epoxy putty offers technicians a robust alternative for critical applications where traditional welding may not be feasible, forming a durable bond to both ferrous and non-ferrous metals.

Key Features

• Extreme Temperature Resilience: Maintains structural integrity and performance under continuous exposure up to 500°F (260°C), making it suitable for demanding high-heat environments within vehicle systems and industrial machinery.
• Effortless Hand-Mixable Application: Designed for direct application without specialized tools. Simply cut, knead, and apply the putty, allowing for quick repairs even in confined or tight spaces.
• Machinable, Professional Finish: Once fully cured, the repaired area can be drilled, tapped, sanded, filed, and painted, ensuring seamless integration and a professional, finished result.
• Strong Metal Adhesion: Formulated for reliable and lasting bonds to a variety of metals commonly found in automotive exhaust systems, engine components, and industrial equipment.
• Controlled Putty Format: The non-drip, non-run consistency minimizes waste and enables precise application on cracks, holes, and worn surfaces, with a set time of 1 hour for efficient workflow.

Applications

This J-B Weld HighHeat epoxy putty stick is an essential tool for permanent repairs across a wide range of components. It is commonly used for exhaust system issues such as patching manifolds, tail pipes, and mufflers across domestic and import passenger vehicles, light trucks, and commercial fleets. Additionally, it is well-suited for high-temperature piping on compressors and heaters, sealing hairline cracks in engine blocks and casings where access for welding is restricted, and rebuilding worn areas on industrial housings. Its versatility extends to reinforcing or sealing high-heat brackets, flanges, and fittings in various maintenance, repair, and operations (MRO) environments.

Specifications

• Manufacturer: J-B Weld
• Model Number: 8298U
• Product Name: J-B Weld 8297 HighHeat 500 Degree Epoxy Putty Stick
• Form: Epoxy putty stick
• Size: 4 oz.
• Temperature Resistance: Up to 500°F (260°C) continuous
• Tensile Strength: 4000 PSI