Evaluation of the Epoxy System for the Repair of Fuel Tank M109.
ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MA
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The repair time to completely process and repair the fuel tank NSN 2910-00-937-9539, M109, has been found to take approximately 36 hours. production engineering requires a more productive method of repair, especially the time factor. Infrared analysis was utilized to optimize the repair time to yield a well-cured epoxy repair system. It was found that room temperature curing takes an indefinite time to cure. A temperature of 83C is the minimum temperature required for a reasonably cured system and 121C is the temperature required for complete cure. Author