J-B Weld 8297 2oz HighHeat Epoxy Putty Stick

J-B Weld 8297 2oz HighHeat Epoxy Putty Stick – World’s Strongest Bond

J-B Weld HighHeat (8297) is a hand-mixable, two-part epoxy putty stick designed for repairs that see sustained heat in automotive, industrial, and shop environments. Kneaded to a uniform color, it forms a tough, permanent bond with little to no shrinkage and a machine-gray finish. HighHeat sets in 1 hour at room temperature and reaches a functional cure in 8 hours, allowing parts to be drilled, tapped, machined, ground, filed, and painted once cured. Rated at 4,000 PSI, this epoxy putty withstands continuous heat to 450°F and intermittent heat to 500°F, making it a practical choice for exhaust components, engine blocks, duct work, and high-temperature machinery.

Compared with conventional epoxy putties, HighHeat maintains strength at elevated temperatures and resists water and oil after cure. The stick format is easy to carry and dose—cut what you need, knead, and press into place for fast, controlled repairs on metal parts including aluminum and steel. For service trucks, fab shops, and maintenance teams, this temperature-resistant epoxy putty provides dependable bonding where standard adhesives fall short.

J-B Weld 2oz HighHeat Epoxy Putty Stick At a Glance

• High-Temperature Rating: Handles 450°F continuous / 500°F intermittent for exhaust and engine repairs.
• 1-Hour Set Time: Allows placement and shaping before the material hardens.
• Functional in 8 Hours: Parts can be drilled, tapped, machined, and painted the same day.
• 4,000 PSI Strength: Permanent bond for demanding shop and field repairs.
• Hand-Mixable Putty Stick: Cut, knead, and apply—no measuring tools required.
• Minimal Shrinkage: Helps maintain seal and fit on precision repairs.
• Water & Oil Resistant: Stands up to shop fluids after cure.
• Machine-Gray Finish: Blends well with common automotive and industrial components.

Markets

• Automotive Repair & Performance: Exhaust and engine block repairs where a high temperature epoxy putty is required.
• Industrial Maintenance (MRO): Quick fixes on hot machinery, housings, and ducts.
• HVAC & Sheet Metal Shops: Seals and rebuilds on high-temp duct work and fittings.
• Agriculture & Heavy Equipment: Heat-exposed brackets and castings on engines and headers.
• Municipal & Fleet Maintenance: On-vehicle tailpipe and muffler repairs to keep equipment in service.
• Trade Schools & Technical Programs: Demonstrates proper use of a hand-mix epoxy stick for high-heat applications.

Technicians and maintenance crews benefit most when a repair holds in the heat. HighHeat’s 1-hour set gives time to position and form the patch, and the 8-hour functional cure means parts can be machined and returned to use within a shift. Exhaust shops appreciate the 450°F/500°F temperature capability for exhaust repair and muffler work, while MRO teams rely on the 4,000 PSI bond for engine housings and hot process equipment. The hand-mix epoxy stick format simplifies dosing on the truck or at the bench, and its resistance to water and oil keeps repairs intact around engines and shop environments.

J-B Weld 8297 2oz HighHeat Epoxy Putty Stick Features

• Temperature-Resistant Epoxy Putty: Formulated for continuous heat up to 450°F; intermittent to 500°F.
• Strong, Permanent Bond: Rated 4,000 PSI with little to no shrinkage.
• Machinable After Cure: Drill, tap, grind, file, sand, and paint after ~8 hours.
• Outperforms Conventional Putties at Heat: Maintains strength where standard putties soften.
• Water & Oil Resistant: Suitable for engine bays, exhaust paths, and machinery.
• Use On Metals Including Aluminum: Bonds steel, iron, and aluminum components.

J-B Weld 8297 2oz HighHeat Epoxy Putty Stick Includes

• (1) 2 oz (57 g) HighHeat Temperature-Resistant Epoxy Putty Stick

J-B Weld 8297 2oz HighHeat Epoxy Putty Stick Specifications

• Type: Hand-mixable two-part epoxy putty
• Strength: 4,000 PSI
• Set Time: 1 hour
• Functional Cure: 8 hours
• Continuous Service Temperature: 450°F
• Intermittent Service Temperature: 500°F
• Dry Color: Machine gray
• Resistances: Water, oil
• Recommended Substrates: (3) Metal/steel, aluminum, select automotive components
• Typical Uses: (6) Tail pipes, mufflers, engine blocks, duct work, machinery, high-temperature projects
• Net Weight: 2 oz (57 g)
• Country of Origin: USA
• UPC: 043425082978

Why Customers Select the J-B Weld 2oz HighHeat Epoxy Putty Stick

Installers choose this epoxy putty when a high temperature epoxy is needed for exhaust repair, engine block patching, and other hot-zone fixes. The hand-mix epoxy stick is simple to portion and shape, so patches conform to pipes, housings, and castings without special tools. After a short 1-hour set, parts can stay clamped while the putty reaches a functional cure in about 8 hours, then be drilled or tapped for hardware. With 4,000 PSI strength and resistance to water and oil, the repair holds up in real shop conditions. For tailpipes, mufflers, and heat-exposed machinery, HighHeat provides a clean, durable solution that keeps equipment running.