Paint laid over rust does not hold
A coat bonds to what is under it, not to what you wish was under it. Rust, mill scale on new steel, chalking on old paint and a failing earlier coat are all weak layers. Paint over them and the new coat lets go early, taking the weak layer with it.
Harry Joles Maintain Painting & Sandblasting puts it in one line: "Top-tier surface prep is the key to our success." It is why sandblasting and pressure washing sit ahead of every painting job from the shop at 1004 East Street in Boyceville.


