The purpose of this recommended practice is to inform industry of considerations in the selection and performance criteria of interim petroleum-based coatings. Quality control criteria are listed to enable the manufacturer and user to select appropriate test procedures to maintain prescribed standards.

   Interim petroleum-based coatings, formulated specifically for temporary corrosion prevention, have been used for more than 50 years to prevent a wide variety of corrosion problems. The type of coating selected depends on performance requirements; traditionally, that the coating can: (1) be easily applied, (2) provide corrosion prevention for the exposure and handling parameters outlined, and (3) be removed more readily than conventional coatings.

   Interim petroleum-based coatings are used throughout the world to protect ferrous and nonferrous parts, assemblies, components, etc., for a few days up to even a year or more. Because they are designed for temporary use, interim petroleum-based coatings can be used to protect metal between manufacturing processes and/or during storage and shipping, and then are normally removed prior to final painting, plating, fabrication, or construction. They are widely used on finished machine tools, boilers, turbines, diesel engines, transportation equipment, earth moving equipment, and other machinery during shipment and storage.

   This NACE standard recommended practice was prepared by NACE Task Group T-6H-42, a component of Unit Committee T-6H on Coating Materials for Atmospheric Service, and is issued by NACE under the auspices of Group Committee T-6 on Protective Coatings and Linings.

Historical Document 1987