Media Blasting Questions

I have used several types of blasting , from Soda , sand and garnet . Most important is that the company doing the job is competent . Blasting creates heat, heat creates metal distortion especially on large flat panels , like hoods roofs etc .My 68 Dart hood was destroyed by an incompetent company. Soda is least aggressive but wont remove rust or filler and is a ***** to get rid of .Best results i have found was garnet and a good operator .Have a look at other jobs this shop has done .8)