You've got a good idea, but you might want to use a blowdryer instead of the iron to heat up the board. If all you have is the iron I'd get the board a bit wet then iron it or use the steam on the iron if it has it so it's harder to accidentally melt the plastic. Wipe dry then wax. You can also wax like normal but keep the iron a bit low on the temp and do it longer, let it cool for ~10mins then iron at normal temp, this should get teh base to absorb all the wax it can.
The last couple times I waxed I touched it to the iron then smeared it on, went faster(2mins vs 10-15) than rubbing cold but used a bit more wax, still not enough to bother scraping.
Last edited by honeycomb; 01-24-2012 at 10:14 AM.