Opening the centre section of the frame
As I said earlier, if you want to
galvanise your car frame properly, you must remove 100% of the paint from it.
Otherwise you are just wasting your time. Don't listen to rumours that paint
will burn off in the galvanising process - you will not get a good galvanised
finish in any areas where there is still paint, and the area will rust again.
That said,
I had to figure out a way to remove all the paint from the center
tunnel of my DeLorean frame. I now had it removed from the front and back
internal sections, so this was the only section remaining with lots of epoxy.
I decided to cut the plate out at
the back of the fuel tank section, to gain access to the inside of this area. I
used a 1mm stainless steel cutting disc on an angle grinder to make as precise
a cut as possible, so that I could later weld back in the original plate of
metal.
The pictures below show the steps
in removing this plate, along with the results of removing some of the epoxy
inside with the heat gun, by heating it from the outside. You can also see in
the first few pictures that I am making good progress removing the epoxy from
the outside of the frame!
The last 2 pictures show how I
also cut open the boxed in section by the rear upper control arm attachment
point, to remove the epoxy in this area. I saved the plates I cut out so that
they could be welded back in later...