PRODUCT LINK BELOW. Product review and demonstration for Rustoleum Painters Touch 2x Clear Matte Spray to seal chalkpaint. This is a cheap wax alternative hack for sealing chalkpaint! This video shows how to use the spray and product results. This spray sealer cost a little more at Amazon but it may be worth it to not make a trip out in search of it. Here is the Amazon link: https://amzn.to/2QIx2pO