Outside plastic tubs.

Try cleaning it with Simple Green.

Is this similar to a deck box, outside?

You could scrub with cleanser and a scrub brush, that should take off the dirt and weathered in grime.

Also try Awesome from the dollar store, that works well.

What is the question? We'd love to help!

here is info on cleaning and since it is outside you will have scratches because of sitting items on top etc

https://www.suncast.com/blog/how-to-clean-outdoor-furniture#:~:text=Get%20yourself%20an%20all%2Dpurpose,problem%20areas%20with%20the%20brush.

https://ezinearticles.com/?Taking-Good-Care-of-Your-Deck-Box---Making-it-Look-Good-All-Year-Round&id=2400896

Don't understand what your question is sorry.

Hello. You may want to call the manufacturer for best advice. I would suggest cleaning it with an all purpose cleaner and then potentially consider sealing it with some armor all for protection and restoration. That might give it some protection from dirt and mold and mildew collecting.

https://www.armorall.com/products/trim-plastic-restoration/outlast-trim-plastic-restorer

I would use young living’s thieves cleaner

I would use either Krud Kutter, Zep or Purple Power. First two you can get in Home Depot, Purple Power you can purchase in Walmart.

Microfiber cloth and soapy water to clean.

Preventing scratches is so difficult because it is outdoor and subject to elements.

Not sure what you are asking??

Keter never claims that their package delivery box is waterproof. What they claim is that it is weather resistant, not waterproof. It is constructed from all-weather polypropylene resin plastic that will never chip, rust, rot or peel. Dish detergent should be find. Use a soft brush and hose it off.

If you have had the box for sometime, the surface of the plastic would have degraded a bit. you could scrub it clean, and if that doesn't work, paint it with a Satin paint for plastic. (ask at your DIY store)