EVALUATION OF MIN-KLAD INTERLOCK FOR USE AS AN EXTERNAL BODY INSULATION.
MCDONNELL AIRCRAFT CORP ST LOUIS MO
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Data received from Johns-Mansville on the properties of Min-Klad Interlock indicates that it would be a useful insulation to use on flight vehicles. The purpose of this test, therefore, was to verify the vendor data. Six Min-Klad Interlock panels, bonded to stainless steel plates, were subjected to a high temperature up to 930F air stream at an impingement angle of 10 degrees for 6 minutes each. Min-Klad was applied to the surface of an actual flight vehicle body section and a Min-Klad panel was subjected to JP-4 fuel, hydraulic fluid, and tap water for 16 hours. The Min-Klad specimens subjected to the hot air stream at mach numbers up to 0.98 incurred only slight charring and erosion of their surfaces. There were no apparent adverse effects on Min-Klad due to 16 hour exposure to the above liquids nor was the MinKlad insulated body section susceptible to damage by storage and handling. The main difficulty in applying Min-Klad was due to the poor working characteristics of the bonding agent, Epoxylite 5403. Author