Qs before I acid etch

[kamesama980]

I was thinking a while ago (dangerous, I know). What I was thinking about was that the lowest boards in my pole barn garage are going to very likely be exposed to the acid etch solution used on the concrete. The slab doesn't have any raised edging to hold liquids in (see pic below) so the acid solution either by splash or flow will probably hit the boards. Will this be a problem? what to do to prevent/reduce damage?

http://s29.photobucket.com/user/kamesama980/media/House on Spring Hill/Garage/DSC02734.jpg.html

 

[LegacyIndustrial]

Tape plastic sheeting along the bottom and use a pump-up sprayer.