There are many numbers and colors but what you see most often is Blue(#242) or Red (#271/292) Blue is removable with tools while Red requires quite a bit of heat (toasted paint) They are both sealers so it could be no matter what penetrant you use it will be all for nothing. I would try the hair dryer in combination with tools first , then move on to the items that will damage and mar
BOB FREITAS
MILL VALLEY, CA USA