Please note that you do NOT need to seal prior to applying the waterslide. Once applied, I recommend sealing the waterslide with epoxy resin OR baking the waterslide onto the coffee cup to ensure it will stay on. This is not a sticker. If you have any questions, feel free to send me a message. :) I'd love to help answer any questions.Clear Waterslide as pictured above. Clear waterslide is good for light colored and white bases. Laser Printed and Ready to Ship! These are perfect size for a t