This is my go to for bead mosaics, because it works in various climates, drys clear and doesn't yellow over time.  One of the most trusted all-purpose adhesives you can find, is available in an 8 fl. oz. and 16oz size! Aleene’s Original Tacky Glue works on just about every surface. Its thick, tacky formula grabs items on contact and dries super strong and permanent, making it great for crafts, hobbies, DIYs and household repairs. Even better, it’s nontoxic, so no fumes while your working.