Crystal Art Sealer enables you to seal your Crystal Art and card kits once you have completed them for added protection. Simply apply a coat of this sealant over your kit and keep the gems permanently stuck to your canvas even in heavy-use situations. What is Crystal Art sealer? Crystal art sealer is a transparent elastic glossy adhesive which is good for all your crystal art projects or creating a gloss coating on any finished project. How to use: Take a thin brush and paint lightly over your finished crystal art project, ensure you only do a thin layer and make sure the sealer goes around the bottom edge of the crystal. Leave to dry for at least 6 hours, dries completely crystal clear. Contents: 1 x 150 ml Crystal Art sealer.