Corrosion Protection for Submerged and Exposed Structures
Corrosion Protection for Submerged and Exposed Structures
(OP)
Hi everyone,
I've been looking at installing a steel set of steps that will be bolted to a concrete wall. These steps will be exposed or submerged depending on the tide.
With regard to the corrosion protection of the steps I've been receiving conflicting information from several sources. One group believe hot dipped galvanising will do the trick, the other group believe zinc primer with coats of two pack epoxy and two pack polyurathane is more suitable.
Wondering if there were any thoughts on this?
Cheers,
Tim.
I've been looking at installing a steel set of steps that will be bolted to a concrete wall. These steps will be exposed or submerged depending on the tide.
With regard to the corrosion protection of the steps I've been receiving conflicting information from several sources. One group believe hot dipped galvanising will do the trick, the other group believe zinc primer with coats of two pack epoxy and two pack polyurathane is more suitable.
Wondering if there were any thoughts on this?
Cheers,
Tim.





RE: Corrosion Protection for Submerged and Exposed Structures
RE: Corrosion Protection for Submerged and Exposed Structures
Steve Jones
Corrosion Management Consultant
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.
RE: Corrosion Protection for Submerged and Exposed Structures
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Corrosion Protection for Submerged and Exposed Structures
One thing you have to consider is traffic up and down these steps. The hot dipped galvanizing will work at first, but being a sacrificial coating will eventually erode away exposing the base metal. Foot traffic tends to erode a small area on each step which can be touched up by a maintenance crew using cold galvanizing paint.
The biggest problem with these types of structures, is that in most places they never get maintained.
Which brings you to your next question, how long do they have to last?
If that answer is more than a few years , look at Steve Jones's solution.
B.E.
You are judged not by what you know, but by what you can do.
RE: Corrosion Protection for Submerged and Exposed Structures
thanks for the advice, really appreciate it.
RE: Corrosion Protection for Submerged and Exposed Structures
RE: Corrosion Protection for Submerged and Exposed Structures
RE: Corrosion Protection for Submerged and Exposed Structures
RE: Corrosion Protection for Submerged and Exposed Structures