My garage door frame and rear door frame edge sealant/mastic, after 20yrs has cracked or loosened from the upvc frame or the brickwork on the exterior. The main door faces south, so it see's alot of sun.
What would be the best to use to replace this and hoping to have another 20yrs. before replacement.
What would be the best to use to replace this and hoping to have another 20yrs. before replacement.