Sealer or primer is is primarily used when you are living in a new home (meaning you are the first owner), or when you have a wall that is prone to moisture, will you need sealer or primer for wall or ceiling painting services.
From our painting experiences, most of the Singapore homes will not really require sealer, but we do have some customers insisting on using sealant for their walls. Here are our advise when you need to use sealant…