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Protective coating for steel piles

Protective coating for steel piles

Protective coating for steel piles

(OP)
Can anyone help with some kinds of protective coating required for steel piles. The piles (open steel pipes API 5L X-52) 25m depth with 2m above ground are for a platform in a swampy terrain. Is the coating required for the entire pile length or just the 2m section above the ground. Thanks.

RE: Protective coating for steel piles

Much cheaper method of extended life is to get a thicker wall with a (+/-) 1/8" corrosion allowance.  Epoxy paint system applied above grade is cosmetically superior.

RE: Protective coating for steel piles

I used to work offshore. Most offshore platforms have paint in the splash zone down to say 10 feet and unpainted thereafter.  Use of cathodic protection with sacrificial anodes was done below the waterline.  Also a corrsion allowance as recommended by Civil person was used.

One problem though. If driving resistance was meet before the pile got to design depth, the painted section of the pile did not make it to the water line.

Carboline used to the be leading paint supplier for splash zone paint, as I recall.

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