Elevate Your Stencil Game with the Epic EVOLUTION - Proton Stencil Professional Primer - PRO LINE - 250ml. In search of a primer that truly stands out? Look no further than the Evolution - Proton Stencil Professional Primer, the latest shining star in the Proton product selection. Made with natural, bio-active ingredients and a year of passion and dedication, this formula packs a powerful bonding punch and even has a numbing effect for your client. Get ready for smoother, less painful tattoos when combined with the rest of the Evolution collection! Artists swear by Proton and now it's become the ultimate go-to stencil primer in the world—and it just got even better. This upgraded version holds stencils in place for a whopping 20 hours or more. That's right, read it again! Want to pick up where you left off tomorrow? The stencil will still be there, just as perfect as before. Thanks to its unique buttery texture, this primer spreads easily