Abstract: A substrate for use with alcohol inks has a vinyl coating on one side of a stiff board, and optionally on both sides. The vinyl surface is ideal for painting with alcohol inks to achieve effects preferred by many artists.

Abstract: A carrier for artists' painting panels or stretched canvases allows wet paintings to be transported in a protected way, important for use by plein air painters and also for protecting finished paintings. A series of frame bars can easily be assembled by their corners in the field to form a frame that can carry at least two painted panels or stretched canvases. The frame bars are universal in that each can be used with another of any length, so that one can select from among a collection of bars of various lengths to assembly a frame of a needed size. The frame holds at least two painted canvases arranged face-to-face. Corners can be secured together by different means. The canvases are held securely in place in the frame.

Abstract: A keyable brace system for stretched canvases provides for keying-out the stretcher bars of a stretcher frame when needed, using interchangeable brace components that can be used face-up or face-down. The braces are of low profile, suitable even for stretcher frames of nominal ¾ inch depth, about ½ inch at inner side of the stretcher bar. Instead of relying on a tongue at the end of each brace to extend into a groove in the side of the frame's stretcher bar, the brace end and the side of the stretcher bar are both grooved and a tapered key is relied on to engage with both the brace and bar grooves to hold the brace in place.