MAC Glue: Multi-purpose Waterproof Adhesive for Arts, Crafts, Mosaic, and Stained Glass Multi-purpose, Quick drying, Dries clear, Flexible, Waterproof ***NOTE-Due to the extreme weather conditions around the country, shipping may take a little longer. As you know, MAC Glue is permanently ruined once it freezes, so I will be paying close attention to your location and will only ship if you can confirm a warm delivery without it sitting in a mailbox in the bitter cold. I primarily use USPS two-day shipping.