DIY hand sanitiser solution forms spongy substance

I am trying to make my own hand sanitiser since it’s sold out everywhere. The formula I use is 1 part aloe vera gel in 2 parts 100% isopropyl alcohol. The problem is when mixing the two, the solution always forms a small white spongy sticky substance while the rest stays liquid, not gel-like:


[![container holding greenish solution with white substance visible at the bottom](https://i.stack.imgur.com/6MGBi.jpg)](https://i.stack.imgur.com/6MGBi.jpg)


I tried two brands of aloe vera gel and got the same result:


* Palmer Aloe vera gel: Aloe Vera Gel (Aloe Barbadensis), Polyglycerylmethacrylate, Propylene Glycol, Witch Hazel, Algae Extract (Algae), PPG-2-Isodeceth-12, Carbomer, Tocopheryl Acetate, Triethanolamine, Methyl Gluceth-20, DMDM Hydantoin, Tetrasodium EDTA, Quaternium-15, Fragrance (Parfum), Hexyl Cinnamal, Linalool, Geraniol, Limonene, Yellow 5 (CI 19140), Blue 1 (CI 42090).
* Thursday Plantation Aloe Vera Gel: Aloe Vera inner leaf juice equiv. to fresh 974mg/g, Hydroxybenzoates, Diazolidinylurea, Potassium Sorbate and Sodium Benzoate


I am starting to think I got the wrong type of alcohol but the label clearly says pure 100% isopropyl alcohol.


What am I doing wrong?


