Hello
Can anyone help I cut the skim and undercoat plaster back on my walls expecting block work but the walls are covered with strange stuff it is stone's solid not lose covered with some sort of paint coating only on external walls the building is a 1970s ex council massionett any idea's? Thanks
Can anyone help I cut the skim and undercoat plaster back on my walls expecting block work but the walls are covered with strange stuff it is stone's solid not lose covered with some sort of paint coating only on external walls the building is a 1970s ex council massionett any idea's? Thanks