Awards & Engraving

February '19

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A&E FEBRUARY 2019 • 47 Other considerations when sandcarving glass include blasting pressure, typically 25-35 psi, and blasting distance within a 4-6 inch range." —Michael Sullivan, IKONICS Imaging What do I need to c o n s i d e r w h e n s a n d - carving stone? " C o n s i d e r u s i n g a thicker photoresist film for blasting stone. A thicker film provides greater sand resis- tance for blasting depth into stone materials. We recommend a 5 mil for a moderate depth (paint-fill etch), and 6 mil for greater depth on stone surfaces. For larger quantities, consider using a coarser grit such as 120 grit for 5 mil or 100 grit for 6 mil for faster etching. For porous surfaces or odd-shaped rocks, heat the stone surface with a heat gun or mini torch until hot to the touch. The heat causes the photoresist stencil to adhere to the surface. We recommend brushing on a layer of adhesive on the photoresist film for deep blasting on porous surfaces." —Liz Haas, Rayzist "I like to use a heavier mask for stone. This allows for higher blasting pressures and faster engraving times. When blasting stones, make sure your dust collection system is working properly to help ensure you're not breathing in anything harmful. Settings for stone are a little higher blasting pressure, and make sure your stone is warm so your masking adheres properly." —Braden Todd, Glassmith2 What are the common issues faced when sandcarving? "Using too much pressure and blasting at the wrong angle. Both could easily cost you a product and all of the time spent prepping it. Use a moderate pace, the right Using a thicker film when blasting stone helps ensure better results. IMAGE COURTESY IKONICS IMAGING

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