Post Number: 1
|Posted on Tuesday, December 24, 2002 - 03:14 pm: |
I would like to use a finish for a steel fence, which has a rusted metal appearance. I understand that this can be accomplished by ; watering the metal, drying it then coating it with a material that stops the oxidaization process. Can you give me some advise on what to specify.
|William C. Pegues, FCSI, CCS
Post Number: 47
|Posted on Tuesday, December 24, 2002 - 10:53 pm: |
I am sure there is something like this out there, but I would like to offer some cautions.
If this is going to have a gate or railing where it can come into hand contact or other wear contact, it will wear away the protective coating a lot faster than just weathering. Then you have the problem of recoating it again probably a lot faster than the actual life of the coating.
If this is not the situation, the other thing to make sure of is that this coating is suitable for exterior exposure if this is an exterior situation. There are a number of different treatments that can provide this kind of an appearance - but are suitable only for interior use.
Finally - think of who is going to be doing the recoating - at some point, it will need to be redone. And the coating may have been let go to the point that rust has started to work again. This may become a problem because to do the system again may be beyond the expertise of those tasked with maintaining it - then they default to 'brown paint' after say, 5 years.
I mention this because I went out to your ci.glendale.ca.us web site and its likely the municipality itself would attempt any upkeep where perhaps a contractor would be hired to do the initial work.
On the other hand, if the city is planning to do the initial coating system themselves, then that would be a better situation. It might be difficult to perform, but it would build in the experience - and it would also mean that the information about the coating and its application were actually recorded and stored in the city maintenance records so the likelyhood of future upkeep of the coating would be maintained. If a contractor is used, then make sure that you get a good submittal regarding the specifics of maintenance of the coating including touchups and reapplication.
The only other caution that I would think of is that be very cautious if you have any 'moving' parts such as at a gate where the material would be subject to wear. You might consider using gate hardware of a different base metal that does not need weathering protection or that is galvanized and has a different coating that is durable to wear. The same concern would apply to any 'flexible' area of the fence - say if it was a woven wire fabric/mesh as opposed to metal pickets/bars, the flexible areas will wear with wind movement which could be very rapid.
Post Number: 2
|Posted on Monday, December 30, 2002 - 02:55 pm: |
Thank you for the thorough advise, and all the thought you put into it. I will surly take it.
I will paint the fence...