Thought I would comment on how great sandblasting is! I wish i owned a sandblaster after watching Tim at Tim's Sandblasting and Welding clean up my trailer in about 30 minutes. After i spent two full days sanding my previous trailer, i was fed up with changing sand paper and my arms were sore.

I was going to rent one, but then you need to rent a huge air compressor too, so for a few more bucks, and a whole lot less time, i had it done. 

The sandblaster took all of the paint off and the rust down to the bare metal! Sweet. Now it is time to weld a kayak rack to go on top of it. That will be the fun part.