Are you using it with L&P? And do you want to enlay it or just use it for impressions?
To embed it, lay down a thin layer of product press a piece into the product still wet, let set and cap with more product.
To use for impressions (works better with a larger type tulle) lay down product let it lose its' sheen and press firmly and evenly into the product and lift straight out. Let product finish setting and then you can fill the impressions.
HTH!