STYNYLREZ water based acrylic polyurethane easy app surface primer by Badger Airbrush Co Badger Air-Brush SNR-322 Stynylrez Gray Water Based Acrylic Primer 32oz.Best-in-class primers assist artists in accentuating the finest of details in the finished piece. Likewise, it ensures the overall longevity of the work. The application ease, extraordinary adhesion, durability, and thin coat coverage make STYNYLREZ primers the ultimate choice for smart artists. When you choose STYNYLREZ, you’re choosing the best.Non-toxic. No thinning necessary.Best applied with 0.5mm or larger nozzle airbrush at 20-30 PSI.