What is shown here are mica powders, which you won't want to use with a spray bottle. You can ADD a little of this to a spray for a shimmer, but this product is designed to be applied with a brush. It has a resin in the product which activates with water and then you apply it to your project. I love these on chipboard!
Don't wet the whole product at once. Put a little on your craft surface with a craft stick and then just add a touch of water to it to activate it. They're really easy to use - first time, you'll be hooked!