This is a screen-printable, water-soluble sandblast resist for producing high-resolution, repeatable imagery on glass — and it's at its best on antique flashed glass. If your work involves halftones, dot patterns, fine line work or complex photographic detail, this medium will reproduce it quickly, cleanly and consistently, print after print. It's designed to do what cut vinyl can't: organic, high-detail imagery at a level of fineness that hand-cutting simply can't match, and at a fraction of the time and cost per repeat.

It performs particularly well on French flash and thinner Lambert's flash, holding crisp detail while you blast through the flash layer. What it isn't is a deep-carving resist — it will take some depth, but if you need to dig into thick glass or heavy, dark flash, this isn't the right tool for that job. A 250ml pot covers roughly 1 m² of printed stencil (a litre covers a conservative 3–4 m²), so a single pot goes a long way on detailed panel work. It's non-toxic, cleans up with nothing more than water, and keeps for two years unopened. As with any resist, we'd always recommend sampling on your own glass before committing to a full sheet — every flash is different, and the guide included with the product walks you through getting the best from it. After purchase and on request I can email you detailed user information.