Mould prevention on Ply

[CountryFan]

I made a little carry tote for some soldering gear, which I was a little proud of. It’s made mainly from ply, possibly OSB I think or board up ply. Anyway, I store it in my van which has ventilation in it, but for some reason I got some green mould growth on it recently. I cleaned most of it off, but it’s coming back. Is there anything I can use to prevent this mould from returning, like a paint or lacquer or something?

I also want to make other things, but don’t see the point if they’re just going to end up mouldy.

Thanks

 

[Wayners]

Zinsser all coat black paint

 

[CountryFan]

Seems a bit expensive. It would be cheaper for me to buy a plastic one or even remake a new one (wood was free from a skip - I work in social housing). Thanks for the advice though.