Suitable product (100 yen shop or homecenter) for mold on MDF corkboard frame?

In our rented apartment, we have this corkboard noticeboard in the hallway near our front door and it’s been getting caked in mold on the sides (the sides are probably more like thin MDF) super quickly, the corkboard bit (where you attach notes with pins etc) seems to be totally immune to the mold so it’s something about the MDF.

It’s physically attached to the wall so we cannot remove it. We asked the management company and they weren’t interested in helping. *There’s no mold anywhere else in the house*. We routinely keep the windows open (front and back) to get good air flow so it shouldn’t be an airflow issue.

I’ve tried wiping it with alcohol wipes (to remove the surface-level mold) and then spraying with カビキラー in a way that it sort of soaks in (to hopefully kill the “root”). Just *a week* later and somehow it’s caked in mold *again*. It’s so quick you’d almost not believe it.

Is there something else I should be doing?

2 comments
  1. Perhaps applying some kind of water repelling solution after cleaning?? Silicon caulking might work??

  2. try wiping with vinegar and then using a steam cleaner. Kabi killer doesnt actually kill kabi, it just bleaches the colour out so it appears to be gone and in wood and other porous surfaces it is impossible to get right into the wood. The high heat and pressure of a steam cleaner will do a much better job.

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