|Boo power washing back deck|
|Set for floor, I think|
C wanted to get the paint off the Z. He started with a grinder. That's dirty, but dry. And loud. And slow. Then, he tried Airplane Paint Stripper. Still dirty, but wet. And nasty-stinky. But a little faster. We have watched videos and television shows on Velocity where the project car rolls in, gets taken apart and then "sent off to blasting". After the commercial, the car comes back completely stripped of paint and rust. Sometimes the body is in pretty good shape, but usually the blasting exposes all of the history: old dents which were "cave and paved", rust that ate through and interesting cheap body shop repairs. Seeing that magic, we figured we wanted to get some of that.
|HF Soda Blaster|
When we bought the power washer, it was virtually the same thing as what we would have rented. Clearly, that was a good move. The soda blaster, however, is a little different. The fancy rental was almost 3 times what a Harbor Freight blaster cost ($135US), so we bought one, with a dead-man valve and some extra nozzles. And a 50# bag of large soda.
The nozzle on our blaster is really small, and while it does effectively remove paint or grime from metal, it is much slower than I expected. In doing research, I've learned that these are much slower than sand-blasting, and that's by design: the soda is much less harsh both on the environment and on the target material. We have decided that the soda blaster is probably best suited for sensitive areas where you can't get after the paint with a grinder. We may circle-back and try the power washer too, to see if we get better results in shorter time with that. One last concern is the need to properly treat the metal which was stripped by the soda. The soda changes the surface pH, which helps prevent rust, but also gets in the way of paint or primer adhering to it. There are a few different ways to solve for this, but first pressure wash the soda-blasted areas to get all of the residue off. Then, it is recommended to use something like HoldTight 102 to address the pH shift.
I've mentioned our limited space, and while it's a "first-world problem", it's still a problem. We are now leveraging a small garden shed for storing thing, like the power washer and the soda blaster. I think the acquisition of any new large tools will need to wait at least until we are down to one car in the garage. We may need to consider a larger shop somehow.
That's it for this week. Thanks as always for following along. I think I'll have made sufficient traction on one or more of the projects to be able to get back to posting on them.