Thread: sand blasting cost.

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We sent a '58 buick for dipping and coating. It looked like a fairly rustfree body, when it came back and put up on the rotiseree the floor pan looked like a planitarium and has to be replaced. I don't know if it was left in there too long or we did a poor evaluation of the metal. Just something to remember in your calculations. Whatever method you chose, i'd want to be there when they did it.

No, what probably happened was that you just had more rust than you thought and when the process removed all of it the holes showed up. I've read articles on having one dipped, and they said sometimes customers are surprised to see that the car they thought was so rustfree really wasn't when they go back to pick it up. Sometimes rusty metal looks nice and thick but the good metal can be pretty thin once it is removed.

Don

Touchy subject..Everyone has their favorite method of paint removal..I had a truck cab sand blasted once..never again..While the guy was experienced,he made such a mess,did a bit of damage[warping],but in the three years I owned that truck,I was constantly cleaning sand out of it..Depending on the article,whether it be double skinned or not,I would get it dipped,or garnet blasted,or,as I did to a friends 69 Mustang recently,,got a good quality chemical paint stripper,and stripped the paint back with that..It took me about a week,part time..Washed it off with a wax and grease remover,then sanded the body smooth,and epoxy primed it..

As far as sandblasting goes it does not cause heat, think of all the air tools you use and the pressure drop as the air escapes, it get cold, similar to the way an air conditioner works. the reason the warpage happens when sandblasting is due to displacement , think of a hammer and dolly, the tiny sand particles push the metal around and if the gun is left to long in one spot it will displace the metal causing warpage and eventually holes. If you set your pressure low, keep moving the gun and always keep an angle on it, it should be fine, the one's that end up botched are guys used to doing frames and heavy metal then think they can use the same technique on sheetmetal. for a $1000 you could purchase an 80 gal compressor and a pressure pot sandblaster, or build your own. then charge $1000 to do someone else s.