Usually after I clean the coroplast with vinegar I dry it off completely and by the time I add the bedding over it there is no noticeable smell. Vinegar is the best cleaner for things having to do with animals. It kills as many germs as bleach and is nontoxic. It also dissolves urine stains great since it's so acidic. You can even use it on fish tanks without worry about left over residue killing your fish.