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The Pressure of Sandcarving Glassware

With over 35 years in the glass business, Ruth Dobbins offers experience in fused and cast glass, as well as in glass-etching techniques. Ruth holds a Master's Degree in Printmaking and Art History and has been a partner in a stained and fused glass wholesale supply company in Europe, which also placed great emphasis on a training program. For the past 20 years, she collaborated with her husband Norm Dobbins in commission work, writing books and creating videotapes on how-to techniques for glass etching. Ruth taught these techniques for 30 years in the U.S. and other countries. Ruth continues these venues by offering a complete training program at Aliento School in Santa Fe, New Mexico, and by teaching at various trade shows, including The Awards & Engraving Show. One-on-one training and consulting services are also offered. You can reach Ruth by email at, by phone at 505-473-9203 and by fax at 505-473-9218. Check out the website at

As you think about how deep you want to blast, keep in mind what you are blasting on: glassware requires less blasting than you could do on an award blank that is at least 1/4" thick or as much as 3/4" thick. When it comes to blasting either object, you also have to choose your pressure settings on your blaster. For glassware, in general you should set your blasting pressure on your pressure pot to about 20-25 pounds of pressure. 

—Ruth Dobbins, Professional Glass Consultant