I want to make something like blue bonded filter pads. Or really anything similar to what a dry sponge feels like, you know? Dont worry what it will be used for yet. First pic is blue bonded filter pad. When it gets wet is it just like a sponge or does it remain kind of rigid as it seen in the picture? What is the best alternative? What I am looking for is something similar to that rough side of the sponge but only thicker in quantity


