Liquid Starch Ingredients. Mix the glue, baking soda, water, shaving foam, and food colouring in a bowl. In fact, commercial starches contain a host of dicey chemicals.
Because it contains a special ingredient (sodium borate or sodium tetraborate), liquid starch also make a perfect slime activator! Mix 4 ounces of glue, 3 ounces of water, and food coloring in a container. Although these ingredients are not overly dangerous, they can be harsh and can cause skin reactions for some children, so try using cornstarch instead.
