Chalkboard Sealer amazon Painting Paint Primers SealersI used this to seal a chalkboard prior to using my Crafy Croc chalk markers to reduce ghosting when I erase I tested this on a smaller chalkboard first with my chalk markers and the chalk maker came off easily with no ghosting Chalkboard Sealer amazon Painting PaintsMake sure this fits by entering your model number Chalkboard effect black china paint with an opaque matt finish Write or draw on Chalkboard Paint surface with chalk once surface has been baked Oleum Specialty 11 oz Chalkboard The Rust Oleum Specialty 11 oz Chalkboard Flat Black Spray Paint can covert most surfaces into a usable chalkboard Apply to wood plastic hardboard glass or paperboard and let dry for 24 hours for best results Price 3 67Availability In stock Chalkboard Sealer use chalkboard and magnetic paint Most of us have seen those painted chalkboard and magnetic walls and thought maybe I should do that Well here s the lowdown on