whiteboard eraser spray
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Search results show common spray bottle volumes around 16.9 fl oz (about 17 oz). Listings reference that size for ready-to-use spray bottles.
They’re available as ready-to-use liquid spray bottles and as refillable starter kits that use dry sachets you mix with water to refill a reusable spray bottle.
Product descriptions list compatibility with plastic, magnetic and MDF dry-erase boards, porcelain, melamine and glass marker boards, and note recommended use on surfaces such as aluminum, ceramic, and fiberglass.
Recommendations vary: one listing suggests cleaning every two weeks to maintain board performance, while others simply advise regular use to help resist ghosting and staining without specifying an exact interval.
Recommended steps: erase the board first, spray the cleaner directly on the surface, then wipe with a soft cloth. Listings also note the convenience of a spray‑bottle applicator for quick cleaning.