At first to release a sealant, dismantling in need of a body detail. Then remove a sealant of a doorway from a flange. A new sealant fill on edges of radius of an aperture so that between radiuses there was small on length a surplus of a sealant after that fill a sealant on sites between radiuses. Sealant stuffing make a rubber hammer or a hand, without applying strong blows. After installation to establish on a body removed before a detail.