[urq] RE : ice blasting + rust proofing

[Louis-Alain Richard]

>first I will get the floorpan dry ice blasted ( this is a very gentle
>way of removing rust, stone chip paint etc.) the good thing is that
>it doesn't remove the original paint and you can also blast all
>rubber parts. After this the choice would be either to have the
>underside painted. Probably with some epoxy paint.

*****Johan, if I'm right, the underside is already coated with a thick
rubber-like product that is very hard to remove. There is no paint
there. You don't have to remove it, just repair where there is rust,
and re-seal with a similar product. There is at least two good reasons
not to remove that stuff: it is very good at protecting the underside
from the road debris, and it has a role as a sound reduction barrier.
Remove it, and you'll regret it as all the stuff projected by the
wheels will hit the floorpan and make an horrible noise.


>The other choice I was thinking of, is to only have the floorpan 
>rustproofed. With some sort of wax, or oil based material.

*****Wax and oil-based rustproofings are good where water can collect,
like inner door panels, door sills, but are no use for the underside
except to pick up dirt. The rubberlike undercoating is what will
protect the floorpan.

Hope this helps,

Louis-Alain