Mastinox D40 Yellow Jointing Compound BMS 3-27A
Mastinox 6856H (1914/3600) - resists temperatures up to 115-120C. Mastinox 6856K (1913/3600) use in preference to Mastinox 6856H where temperatures are likely to exceed 150-160C Mastinox D40 (1640/3600) use where temperatures are likely to reach 200C. Mastinox is not affected by most hydrocarbons or greases. It is recommended however, that wherever Mastinox will come in contact with aggressive hydraulic fluids, for example "Skydrol" it is protected using a conventional polyurethane paint system. Direct contact between different alloys can lead to galvanic corrosion at the joint. In assemblies which are subject to shock and vibration, this corrosion is exacerbated by the presence of humidity. Jointing compounds are therefore required which both inhibit corrosion and at the same time, are effective insulators. Their remarkable flexibility minimizes any risk of cracking or separation resulting from ageing.
MIL-P-8116
