dag019
Well-Known Member
I have bought what was advertised as a good 300tdi galvanisd bulkhead. Bought blind off ebay and picked up by friend who was local for what seemed to be a very good price. Now that I have it in my posession I am unconvinced that it is galvanized, I think it has been elcetro plated. It is definitely plated but still has the rough finish from shot blasting and is not the shiny smooth "rippled/marbled" appearance finish I expect from hot dip products. There are also not the tell tale drip marks/runoff and there is no evidence of finishing/re-drilling/tapping but the threads are all present.
On closer inspection there are also some areas that need repair as far as I am concerned. The top rail below the vents has a thin section which has been cut out and welded back, but no new metal let in, and the vent mesh has been welded on rather than the riveted frames( also not filled with zinc as I would expect form hot dip).
Based on this it seems that rather than being a very good price, what I paid is an ok-high price for a mostly good bulkhead.
My question is can you hot dip over electro plate?
Once I have carried out the minor repairs mentioned above there will be a need to re-treat, and ideally I would like hot dip as it gives a thicker coating more suited to outside use.
On closer inspection there are also some areas that need repair as far as I am concerned. The top rail below the vents has a thin section which has been cut out and welded back, but no new metal let in, and the vent mesh has been welded on rather than the riveted frames( also not filled with zinc as I would expect form hot dip).
Based on this it seems that rather than being a very good price, what I paid is an ok-high price for a mostly good bulkhead.
My question is can you hot dip over electro plate?
Once I have carried out the minor repairs mentioned above there will be a need to re-treat, and ideally I would like hot dip as it gives a thicker coating more suited to outside use.
