TM 1-1520-240-BD Table 2-4.  Adhesive System Criteria ADHESIVE NO. OF POT LIFE SYSTEM COMPO- PHYSICAL AT 21.1 °C FLASH SHELF STORAGE NO. NENTS PROPERTIES (70⁰F) POINT LIFE TEMPERATURE 1 1 A tough, flexible N/A 30°  F 9 months Below 80°  F contact adhesive (-1.2°C) (26.7°C) with good peel strength. Good resistance to fuel, oil, and water 2 1 A flexible water N/A 54°F 9 months 40°  to 80°F resistant contact (12.2oC) (4.5°  to 26.7°C) cement. Poor resistance to fuel and oil 3 2 Cures to a tough 40 to 60 - 12 months 40°  to 80°F flexible rubber; minutes (4.5°  to 26.7°C) resistant to oil 4 2 Cures to a tough 24 hours 50°F 12 months Below 80°F flexible rubber; (10°C) for adhesive (26.7°C) resistant to fuel for 90 days for and oil primer primer 5 4 A rigid epoxy 2 hours Part AB: 2 years Below 80°  F adhesive, high in 395°F (26.7°C) tensile and shear (201.8°C) strength. Resistant Part CD: to fuel and oil; fair 468°F resistance to water (242°  C) 6 1 Cures to a flexible 30 minutes 50°  F 8 months for Below 70°F rubber; resistant to (10°  C) adhesive (21.1 °C) fuel and oil for primer 12 months for primer 7 2 A water resistant 2 to 4 hours 60°  to 6 months for Below 75°F contact adhesive. 90°F adhesive (23.9°C) Cures to a resilient (15.6°  to and catalyst film with very low 32.2°C) 12 months bond strength. for primer Poor resistance to fuel and oil 2-48