Tectyl 437D is a hot application corrosion
preventive compound which provides an effective
barrier against atmospheric corrosion. The film is
semi-firm, tan in color, and opaque. Tectyl 437D is covered under Military Specification MIL-C11796C,
Class 3, QPL Reference Number M6154.
Surface Preparation :
The maximum performance of TECTYL
437D can be achieved only when the metal
surfaces to be protected are clean, dry, and
free of rust, oil, and mill scale. Daubert
Chemical Company recommends that the
metal substrate temperature be 50 - 95 F
(10 - 35 C) at the time of product application.
Application :
TECTYL 437D should be applied to clean,
dry metal surfaces in the hot (molten) state
by hot airless spray or dip. (See application
temperatures under Lab Data.) TECTYL
437D can be applied at warm, ambient
temperatures by brush or swab.
