First of all, the head of the collodion mop needs to be kept moist frequently. If you don't use it for a while, it will harden. When you use it again, you must refer to the first use method and do it again.
Some people mop the floor. After washing mop head, they like to put it on the balcony to bask in the sun. Do not use a collodion mop, because it will promote the aging of the collodion head. Remember not to expose it to the sun.