As much as I know, you should treat it like usual paint. You can use the ceramic coating on the door jams and it's not necessary to keep the door open or to reapply paint after it dries. I worked with some guys that do ceramic coatings Jacksonville, and I learned this from them. I was truly impressed with the finished result because I didn't know that ceramic coating can make everything look so good. I would totally use this after for other projects, so if you have any to share, feel free to do so.