Nox-Rust® AC-523


Possesses a heavy consistency that has been achieved without the incorporation of asbestos fibers. Specifically formulated to pass the requirements of Federal Specification TT-C-520-B.

Key Features

  • A firm film undercoating material
  • Formulated to provide corrosion protection, sound deadening and moisture sealing properties to the underside of highway trailers, bus bodies and automotive vehicles
  • Composed of an abrasive free asphalt based material, dispersed in a petroleum solvent to provide a homogenous mastic type compound
  • Federal Specification TT-C-520-B


This product meets appropriate performance criteria as specified by the organizations listed below.   Information regarding these specifications can be found in the information above, or included in the Product Information Sheet also found above.


Nox-Rust® coatings are used for extended corrosion resistance and sound deadening requirements for transportation, storage containers and other OEM equipment.

Success Story


The global leader in elevator manufacturing was experiencing rusted guide rails before installation, costing valuable time as this situation required the removal of corrosion before installation.

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