WillMag Posted October 22, 2009 Share Posted October 22, 2009 Hi, I am making a gate at the moment which is approx 1.5m square approx half of it is to be filled with a sheet of 4mm plate tennoned into the front, back stiles and bottom rail. There is no top rail. I was going to have it hot dip galvanised as it's going pretty close to the ocean. This is traditionally made gate with no electric welding. I'm a bit worried bout the plate buckling during the gal process. Has anyone done anything similar, will it be alright? Also I need to paint it after, What exactly is 'Tea wash' or equivelant, is it possible to mix it up yourself? Thanks Quote Link to comment Share on other sites More sharing options...
belargehair Posted October 22, 2009 Share Posted October 22, 2009 When I worked at a steel fab shop (mostly bridges) we were required to brace any thin gauge materials before galving. Mostly things like troughs. The fellas would tack weld on a few cross braces, and nip them off later. Other options we tried were spray galv (spray cans) and metalizing (expensive). Metalizing was pretty neat, it was like powder coating but with metal. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted October 22, 2009 Share Posted October 22, 2009 Can you make the plate out of a different rust resistant material and add it in after the galvanization? Quote Link to comment Share on other sites More sharing options...
arftist Posted October 23, 2009 Share Posted October 23, 2009 Even thick metal can be distorted by the hot dip galvanising process. 4 mm is very thin. Take it to the plant and ask them what you should do to prevent distortion. There would still be a chance of your item being ruined though. Sandblast, epoxy primer and arylic enamel topcoat would give a great many years of good service if properly applied. Quote Link to comment Share on other sites More sharing options...
WillMag Posted October 28, 2009 Author Share Posted October 28, 2009 Thanks for that I'll look into metalizing and talk to the galvanisers Cheers Will Quote Link to comment Share on other sites More sharing options...
Jocko 58 Posted October 28, 2009 Share Posted October 28, 2009 Could you get it double powder coated , first coat zinc ( cold gal ) then top coat.that's how i get it done and i'm near the coast 3 kms Cheers John :) Quote Link to comment Share on other sites More sharing options...
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