Maintenance
Why a White Board Starts Ghosting, and How to Stop It
A board that still shows last week's diagram after wiping has a residue problem, not an age problem. Ink that is not fully removed each time builds a film, and once the film is there, wiping spreads it instead of lifting it.
Two things fix it: how the board is cleaned daily, and which surface was bought for the room.
What actually causes ghosting
Left ink film. Three habits build it: leaving writing on the board overnight, wiping with a cloth that already carries solvent and ink, and using a rough cloth or sponge that micro-scratches the surface so ink sits inside the scratches.
Daily routine that keeps a board clean
Nothing here needs a special product; it needs consistency.
- Erase the board at the end of every session, not at the end of the day or week
- Use a clean, soft cloth or a proper board eraser, and wash or replace it regularly — a dirty eraser is the main reason a board looks smudged after cleaning
- Wipe in one direction with light pressure rather than scrubbing in circles
- For a deeper clean, dampen a soft cloth with water or a mild board cleaner, then dry the surface before anyone writes on it
- Never use abrasive pads, scouring powder, or strong solvents on any board surface
- Do not leave permanent marker on a board assuming it will wipe off
Recovering a board that has already ghosted
Cover the old ghosted writing with fresh dry-erase ink and erase it immediately while wet — the solvents in the new ink lift the dried film underneath. Then clean the whole surface with a damp soft cloth and dry it.
Repeat across small sections rather than attempting the whole board at once. If the board has been scrubbed with abrasives for a long period, the film has gone into the scratches and no cleaning routine will fully recover it; that board needs replacing.
Specifying boards that resist it
Ghosting resistance is decided at purchase. Marker Grade HPL is high-gloss and made for easy erasing. Ceramic — porcelain enamel steel — is hard and non-porous, and built for continuous writing and frequent cleaning, which is why it is specified for high-traffic institutions that clean their boards daily.
High Gloss Melamine on the Eco Regular range is meant for light use. Put it in a busy lecture hall and it will ghost within a term, which is a specification error, not a quality complaint.
The other variable is chalk. Where a room writes with chalk, a Chalk Grade HPL surface is the correct one; using a marker surface for chalk is a fast route to a permanently marked board.
Who cleans it matters more than what cleans it
Institutions that put board cleaning on a fixed schedule — class monitor, housekeeping staff, or a daily end-of-day wipe — keep boards readable for years. Boards cleaned only when they look bad are the ones that reach the point where cleaning no longer works.
Questions on this topic
- How often should a white board be deep cleaned?
- Daily erasing after every session, with a damp soft cloth and a dry wipe when the surface starts to look smudged even after erasing. Rooms that run all day usually need a full clean once or twice a week.
- Which board surface is easiest to keep clean?
- Ceramic. Porcelain enamel steel is hard and non-porous, so it tolerates frequent cleaning, which is why it is specified for high-traffic institutions.
Boards mentioned in this guide
Sizes, surfaces and frame variants listed here are made to order. Send Plusmark your room details and quantity and the team will confirm what is available in that series.
