| AC-632 Class B, is a two-part, manganese cured, polysulfide sealing compound, for aerodynamic smoothing. The mixture of base and catalyst is a thixotropic paste which can be applied with a spatula, extrusion gun, or injection gun. The cured AC-632 sealant is a firm, flexible rubber, aluminum in color, resistant to fuel and other chemicals and lubricants common to the aircraft industry. AC-632 maintains its flexibility and bond strength on most metal substrates under extremes of temperature, weathering and stress. |