Effects of UV Curable Resin on the Performance of Rust Preventing Coatings for Steel Tubes

Abstract

In order to prevent temporarily the rust of steel pipe or tube, conventional rust-preventing oil such as linseed oil or synthetic alkyd resin oil diluted with appropriate organic solvents has been applied in the pipe manufacturing coating lines for many years. Because these conventional oil usually takes so long time for curing, the steel pipes and tubes coated with the oil have to be handled and transported under the uncured film conditions and easily takes damage. Because of such damage, the red rust easily comes up on the surface of steel pipe during transportation and stock in the customer's yard.
Furthermore, oil-coating line gives rise to unpleasant and unhygienic smell for evaporated solvents in the pipe coating factory.
Standing on this background, Ultra-violet (UV) ray curable resin coating system has been recently developed of which curing speed was under 1 or 2 s.
In this paper, the effects of physical properties of resin polymers on the performance of UV curable coatings used in the rust preventing of the steel pipe and tube were discussed.