3MDP420 active use: 60 (min) Effective substances ≥50% Operating temperature:? 24 ℃ Shelf life: 15 months 3M DP420 is divided into two colors, black and white, moderate operating time of tenacity, 1 to 2 hours to reach operating strength AB epoxy type glue, 37 ml of a package [Features]: High-performance mixing ratio (volume) B: A 2:? operating time 1 24 ℃ when approximation: 20 minutes to act on many surfaces, such as metals, ceramics , wood and some plastics