Cleaning sand off aluminum walls

[LolaT]

Not really a restoration question but wondering if I could get some experienced advise on the best way to clean sand off the inside aluminum walls.
We had a window break in Lake Powell and a bunch of dry and moist sand blew inside. Everything was covered. I’ve cleaned most of it. Vacuumed the walls with a soft brush but there’s still sand on them.

When I tried wiping it down with a cotton rag and small amount of cleaning spray, it scratched the aluminum like sand paper.

Any advise? My only idea right now is to wipe down with a soaked micro fiber cloth. But I’d also like to know what cleaner if any is best for that. (Usually I use Lysol multi purpose surface cleaner).

[rowiebowie]

Your problem is perplexing. I would have thought the light vacuuming with a soft brush to have done the trick. But when you said that failed, I suspected some kind of static charge was holding the grains of sand to the walls. But when you used a wet spray, I'd have thought that would have released the static bond. Sorry, I've got nothing.

[rocco52]

Originally Posted by rowiebowie

Your problem is perplexing. I would have thought the light vacuuming with a soft brush to have done the trick. But when you said that failed, I suspected some kind of static charge was holding the grains of sand to the walls. But when you used a wet spray, I'd have thought that would have released the static bond. Sorry, I've got nothing.

This is going to be time consuming but I think I would roll up a towel at the base and then spray clean water on it starting at the top to loosen the sand. The aluminum is actually coated with a thin clear plastic like material which could be gently buffed if needed.

[LiLNomad]

What about one of those super soft feather duster things to kinda sweep the sand down then vacuum up?
LilNomad

[Bmccorm]

Sticky lint roller?

[Bill M.]

I would try one of the waterless cleaners they use for show cars. I use one called “Envy”. They sorta “float” the dirt off with a chemical layer under it. The Walbrize commonly used on Airstream exteriors May work also.

[Life is a Highway]

I would do this

Use our California duster to gently pick up the heavy stuff. Followed by a Automotive detail mist and light wipe with a fresh microfiber.

After that use Lemon Pledge with a soft Cotten towel or microfiber. Lemon Pledge is recommended by Airstream.

[RJJ]

I'd try masking tape. It's known for picking up small particles without leaving adhesive behind. 🤔

[rmkrum]

Or a car detailing clay bar

[PatLee]

Or duct tape.