Perfect for crafting pieces of armor for cosplay. Our foam is extremely easy to shape and mold, making it possible to make cosplay pieces with incredible detail. Once dried our foam clay remains flexible, but sturdy, ensuring a comfortable fit while also maintaining stability. Smooth out your work. Our foam clay is the perfect option for you. Coat and Paint. Our product is paint-ready as soon as it dries, though if you want the absolute best-looking paint job, we recommend sealing your piece before painting it.