Formlabs standard Grey Resin is an opaque, matte, dark grey resin. Its smooth surface and crisp detail are perfect for general purpose applications from prototyping to capturing small details. Supports print resolutions: 100, 50 and 25 Microns.  The standard resins are formulated to deliver the highest-quality output, and captures astonishing detail without sacrificing durability and toughness.

Your Resin Tank should be replaced for every two-to-three liters of resin used. If you're planning on working with multiple colors, extra resin tanks allow you to switch quickly and easily between them. You can safely store your other tanks for as many as two months, which means you won't have any wasted material.