Mayco 6 Count Multicolor Glaze Set, 1 Pint, Water-based, Arts and Crafts (Ceramics), Glaze

Unfortunately even though I love this type of glaze and use it often, I will not use Amazon to purchase it again. First off the first batch was lost in shipping. That was annoying but can't be helped. My issue was one bottle was opened and leaked all over the other bottles. Also all the glazes have separated with water floating on the top. I've mixed them but after settling they separate again. I've never seen this happen with this type of glaze before. I wonder if the bottles were frozen.