4oz size (2oz Resin + 2oz Hardener) 30 MINUTE Z-POXY is a premium high strength two part epoxy adhesive. The 30 minute cure time allows a greater working time and increased pot life. Vibration resistant and fuel proof, this epoxy is perfect for all types of hobbies and crafts. Use it on all fire wall and engine mount installations, its perfect for attaching bulkheads and formers in epoxy glass fuselages and boat hulls. It does not get brittle with age and its easy to mix, just combine equal parts by volume 30 MINUTE CURE CLEAR FORMULA EXTRA STRENGTH, PERMANENT BOND SHOCK AND VIBRATION RESISTANT FILLER COMPATIBLE