1. METAL & ALUMINUM REPAIR — AOJEL S300 is a 2 part structural metal epoxy built for rigid repairs on brackets, housings, frames, engine block cracks, radiator tanks, and rigid pipe joints where ordinary glue is not enough. 2. METAL REPAIR GLUE THAT HOLDS — Not a surface patch. S300 is a metal repair glue designed for rigid repairs under load, heat, water, oil, vibration, and daily stress when the part still has to work after cure. 3. 3–4 HOURS TO ALIGN IT RIGHT — The controlled working time gives you room to clean, position, clamp, and correct the repair before cure instead of rushing through a fast-setting patch that is hard to place properly. 4. HIGH TEMP EPOXY PERFORMANCE — This high temp epoxy withstands heat up to 392°F after full cure and forms a waterproof bond with resistance to oil and vibration in real repair conditions. 5. DRILLABLE EPOXY AFTER FULL CURE — Once cured, the repair can be drilled, sanded, filed, and painted for a cleaner finish, better follow-up work, and a result that feels more like part of the structure. 6. COLD-WELD-STYLE CONTROL WITHOUT FLAME — When welding is messy, risky, or impractical, S300 gives you a more controlled repair path with no sparks, no open flame, and no special welding setup. 7. STAYS WHERE YOU PUT IT — The medium-viscosity no-sag formula helps on vertical and overhead repairs, so you waste less material and keep the bond where it belongs. 8. FULL CURE BUILDS REAL STRENGTH — After 8–12 hours at room temperature, S300 cures to a hard Shore D 85–90 repair body that feels rigid, stable, and ready for real follow-up use. 9. ALUMINUM EPOXY FOR RIGID REPAIRS — Bonds aluminum, steel, iron, cast metal, ceramic, fiberglass, and other rigid materials. Not recommended for PE, PP, PTFE, silicone, soft plastics, or joints that must stay flexible. 10. FIX WHAT MATTERS. MOVE ON. — S300 is built for the repair you do not want to do twice: one controlled repair that helps put the part back to work and get the problem out of your day. AOJEL S300 is a 2 part structural metal repair epoxy built for rigid repairs that still need to hold after the job is done. When a bracket cracks, a housing breaks, or a rigid pipe joint starts leaking, you do not need another surface patch. You need one repair that can go back to work under real stress. The 1:1 system gives you 3–4 hours of working time to clean, align, clamp, and shape the repair before cure, then reaches full cure in 8–12 hours at room temperature. Once cured, S300 forms a hard Shore D 85–90 repair body that can be drilled, sanded, filed, and painted for a cleaner finished result. Built for steel, aluminum, iron, cast metal, ceramic, fiberglass, and other rigid materials, S300 withstands heat up to 392°F and forms a waterproof bond with resistance to oil and vibration after full cure. It gives you a more controlled, cold-weld-style repair path when welding is messy, risky, or impractical. Best for brackets, housings, frames, engine block cracks, radiator tanks, rigid pipe joints, and other high-value metal repairs where ordinary glue is not enough. Not recommended for PE, PP, PTFE, silicone, soft plastics, or joints that must remain flexible.