J-B Weld 8281 10oz Twin Tube Pro-Size Steel Reinforced Epoxy

J-B Weld 8281 2PC 10oz Twin Tube Professional Size Steel Reinforced Epoxy – World’s Strongest Bond

J-B Weld 8281 is the professional-size version of the brand’s Original Cold-Weld two-part epoxy, packaged in large twin tubes for shop, fleet, and maintenance use. Mix resin and hardener at a 1:1 ratio to create a durable, gap-filling bond that can be shaped during assembly and then finished like metal after cure. From the packaging: set time is 4–6 hours and full cure is 15–24 hours, producing a dark gray repair rated at 5,020 PSI. Once cured, the epoxy is sandable, drillable, tappable, and paintable, so brackets, housings, and hardware can be restored to final fit and finish. It withstands temperatures up to 550°F (fully cured) and resists water, oil, fuel, and common shop chemicals—useful across metal, most plastics/PVC, wood, ceramic/tile, concrete/brick, and fiberglass.

The pro-size tubes (5 oz each) deliver five times more material than standard packs, ideal for repeated jobs or larger builds where consistent mixing and predictable cure matter.

J-B Weld 10oz Twin Tube Pro-Size Steel Reinforced Epoxy At a Glance

• Original Cold-Weld Formula: Two-part, steel-reinforced epoxy for permanent repairs.
• High Strength (5,020 PSI): Reliable hold on metal and mixed materials.
• Set/Cure Profile: Sets 4–6 hrs; full cure 15–24 hrs; dark gray finish.
• High-Temp Performance: Withstands up to 550°F after full cure.
• Machineable Finish: Sand, drill, tap, and paint once cured.
• Fluid & Chemical Resistance: Stands up to water, oil, fuel, and common solvents.
• Multi-Surface Use: Bonds metal, most plastics/PVC, wood, ceramic & tile, concrete/brick, and fiberglass.
• Pro-Size Capacity: Large (2) 5 oz tubes for shop and fleet maintenance.

Markets

• Automotive & Powersports: Engine brackets, housings, hardware, and general shop repairs.
• Industrial Maintenance (MRO): Equipment guards, fixtures, and mixed-material assemblies.
• Construction & Renovation: Bonding and rebuilds on metal hardware, tile, and concrete.
• Marine & Trailer: Moisture-exposed repairs on metal and fiberglass components.
• Agriculture & Heavy Equipment: Field fixes on castings and frames.
• Municipal & Facility Maintenance: Doors, railings, carts, and utility fixtures.
• Trade Schools & Training Labs: Demonstrates proper mixing and finishing of a two-part epoxy.

Professionals value this steel-reinforced two-part epoxy because it pairs high strength with a workable schedule. The 4–6 hour set gives time to position and build up material; by the next day, parts reach full strength and can be tapped, drilled, and painted for clean reassembly. In auto, marine, and facility environments, resistance to water, oil, and fuel keeps repairs intact, while the 550°F rating covers many hot-zone tasks. The pro-size twin tubes reduce changeouts during larger projects and ensure consistent 1:1 mixes across multiple tickets. Whether bonding metal to metal, filling worn keyways, or rebuilding chipped concrete and ceramic, J-B Weld 8281 delivers dependable, cold-weld performance without bringing in a torch.

J-B Weld 8281 10oz Twin Tube Pro-Size Steel Reinforced Epoxy Features

• Steel-Reinforced Composition: Added durability for metal repair and fabrication.
• Cold-Weld System: Permanent bond without heat; gap-filling for irregular joints.
• Finish-Ready: Machine, sand, drill, tap, and paint after full cure.
• High-Temperature & Chemical Resistant: Suitable for engines, plumbing, and shop floors.
• Broad Material Compatibility: Metal; most plastics & PVC; wood; ceramic & tile; concrete & brick; fiberglass.
• Professional Output: Large tubes support repeated use and larger patches.

J-B Weld 8281 10oz Twin Tube Pro-Size Steel Reinforced Epoxy Includes

• (1) 5 oz Steel (Resin) Tube
• (1) 5 oz Hardener Tube

J-B Weld 8281 10oz Twin Tube Pro-Size Steel Reinforced Epoxy Specifications

• Type: Two-part steel-reinforced epoxy (cold-weld)
• Mix Ratio: 1:1 (resin:hardener)
• Total Volume: 10 oz (2 × 5 oz tubes)
• Tensile Strength: 5,020 PSI
• Set Time: 4–6 hours
• Full Cure: 15–24 hours
• Dry Color: Dark gray
• Max Temperature: Up to 550°F (fully cured)
• Resistances: Water, oil, fuel, common chemicals
• Compatible Materials: (6+) Metal; Plastic/Composite/PVC; Wood; Ceramic/Tile; Concrete/Brick; Fiberglass
• UPC: 043425082817
• Country of Origin: USA

Why Customers Select the J-B Weld 10oz Twin Tube Pro-Size Steel Reinforced Epoxy

Crews choose this steel-reinforced epoxy when a tough, permanent cold-weld epoxy is the practical answer. The predictable 4–6 hour set allows careful alignment and buildup on castings and brackets, and the machineable cure means holes can be tapped, edges sanded, and parts painted for a professional finish. With 5,020 PSI strength, 550°F temperature tolerance, and resistance to water, oil, and fuel, the adhesive performs in engine bays, pump rooms, and shop floors. The pro-size twin tubes cut down on changeovers during large or repeated repairs while keeping the simple 1:1 mix. For metal, PVC, concrete, ceramic, and fiberglass tasks across automotive, industrial, and facility maintenance, J-B Weld 8281 is a dependable, everyday solution.