I personally would not use muratic acid. I used it in de-chroming printing cylinders. Its nasty stuff. (can be bought at Lowes etc because its used to etch concrete floors) For the money you spend on the chemicals etc I would suggest taking the parts to someone know for sandblasting and give them 10-15 bucks to clean it up. If anyone is careful it will eat off very little metal unless its really bad rust. I personally put the small stuff in a "screen type" pot/basket and glass bead mine but then I know you do not have a bead cabinet....but do you know anyone who has?? Join a car club etc and you will find many hobbist friends who are willing to help. You may also consider taking the stuff to a grave marker/monument company. If they have been in business a good while you can get a good job done for a very fair price. And finally.....Builder, what a great idea. I'm looking for one now!!! Just turn it on and let it do the work for you.
