What is Efflorescence? “Efflorescence” is the term most commonly used to describe the deposit of crusty white mineral salts that appear on a masonry surface (concrete, render, brick or mortar) that have leached out from within the substrate when moisture migrates through it. Any efflorescence on the surface must be removed prior to painting as...Continue Reading

What is Burnishing or Marring? “Marring” is the term commonly used to describe shiny patches or polished areas that become evident when painted surfaces have been subjected to abrasion, possibly caused by cleaning or scrubbing to remove dirt or stains. Another term used to describe this same effect is “Burnishing“. The definitions provided by AS/NZS...Continue Reading