Quote:
Originally Posted by Jaroslav
Sand can only be used with little pressure. Here it happened that parts from car returned puffy. I saw a bloated whole car. Just what the man without the brain was sandblasting was destroyed. Large areas inflate. If bad use sand.
Water is very clean procedure. This procedure use for prototypes and new cars for control.
Just information that this path exists.
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I agree totally on not blasting sheet metal. I use molasses or citric acid, neutralizing with baking soda and preserving with metal prep-n-etch.