Q1: What is the best marker to use for dark, opaque lettering on cardboard?
A1: Industrial oil-based paint markers or broad 15mm chisel-tip acrylic markers are ideal. Standard household permanent markers contain thin, dye-based ink that sinks into unbleached cardboard, leaving a faded brown hue that disappears from a distance. Opaque acrylic paint pens sit on top of the fibers, keeping lines deep and sharp.
Q2: How can I display my message on both sides without doubling the weight?
A2: Rather than taping two heavy boards together, use a single sheet of 4mm Coroplast or 3/16-inch foam core and paint your slogans directly on both the front and back. Put a short, punchy 3-word slogan on the front for broadcast cameras and a clever or humorous phrase on the back so the crowds walking behind you can read it easily.
Q3: Are there legal restrictions on what materials can be used for protest signs?
A3: Yes. Municipal codes and federal park rules frequently prohibit wooden slats thicker than 1/4 inch, metal poles, PVC pipes, and sharp fasteners like protruding staples or nails. Check the specific demonstration guidelines for your local city council or park authority beforehand, or opt for hollow cardboard handles to avoid issues at checkpoints.