Which description best defines multi-coat failure in painted surfaces?

Which description best defines multi-coat failure in painted surfaces?

• A. Several of the top layers of paint or other coatings are delaminating from layers below
• B. Paint is rubbing because of mechanical friction
• C. Pieces of paint are loosened or broken because of impact
• D. Ghost Wipes

Answer: (A)

Multi-coat failure is when multiple paint coats lose adhesion and separate from the coats beneath them, so several top layers delaminate from the layers below. This specifically describes the situation where several layers peel away together, rather than just one coat flaking off. It’s different from wear due to friction, which would show as paint rubbing away from rubbing contact, or from impact damage, which would cause chips or breaks from a hit. Ghost Wipes are a sampling product and don’t describe a failure mode of the paint itself.

Multi-coat failure is when multiple paint coats lose adhesion and separate from the coats beneath them, so several top layers delaminate from the layers below. This specifically describes the situation where several layers peel away together, rather than just one coat flaking off. It’s different from wear due to friction, which would show as paint rubbing away from rubbing contact, or from impact damage, which would cause chips or breaks from a hit. Ghost Wipes are a sampling product and don’t describe a failure mode of the paint itself.