LPG Cylinder Surface Coating Requirements
The use of a zinc metallised based corrosion protective finish prior to the final painting of the cylinder is good practice but is not applied in every country surveyed. There is strong evidence linking the use of a zinc based corrosion protective base with a prolonged cylinder life.
China has very prescriptive advice. The application of a 37 micron (minimum) zinc coating should be followed by a coat of zinc chromate primer and another coat of super synthetic enamel paint. The total thickness of primer and enamel paint to be a minimum 30 microns. The total combined thickness should be minimum 67 microns. The colour and finish of the paint coating of steel cylinders is often linked to the brand in the country and synthetic enamel and powder coating are both commonly used.
Spray booths with water arresters were common ways to apply the finished coat.
LPG Cylinder propane butane cooking gas energy
