AlumaNew

used this on a pontoon that had been sitting in a muddy lake for years, made the tubes look new again. Very easy to use, just spray on with a weed sprayer making sure not to get it in the air, let it sit for a minute, do a light wipe with a rag and spray off. Pretty amazing stuff. It will start to burn your skin if it sits on there for a minute so be careful. We polish after so it doesn't have that sort of raw new metal look

Good for cleaning pontoons

I used this on some old wheels and was very happy with the results.

Work great! Removed grease and stains !

Works great on my pontoon boat after sitting in the lake all summer! Definitely work from bottom up to help with streaking. Easy to use, let sit sit then rinse off. It left mine milky white bit with a little buffing looks brand new.

Will buy again . Works well saltwater aluminum trailer

Amazon product description and instructions - state "EASY TO USE - Simply mix 1 part cleaner to 4 parts water, apply to surface..." Going to the MANUFACTURER - they state 1:15. Which for a 32 oz spray bottle is 2oz's with 30oz's of water. Which is what I mixed it at. 1:15 Sprayed on; left a minute - briefly used a brass brush; rinsed with clean water. Cleaned the metal quite well. No complaints. This was a small engine water port part (fixing a Kia; installing a Cylinder head). After the C head is installed - I am going to spray onto the Block - leave it for a couple of minutes - then Pressure wash rinse with clean water. Not going to use a wire brush. From my limited experience with this product - I expect that procedure will work fine. I STRONGLY recommend not to mix at 1:4!! From my and manufacturers recommended 1:15; 1:4 is going to cause problems. The descript also states it is fine for ALL Aluminum. Nope. Not Polished; and not Anodized. So if your aluminum wheels are POLISHED - it is not recommended. Also - do NOT let it DRY on the Aluminum surface - and be sure to RINSE off - with clean water.

Bought a used pontoon with normal darkening and some heavy scaling oxidation on pontoons. Mixed it 4:1. Works ok on light oxidation. Had to apply a couple of coats to darkened areas and quickly spread out on section with a sponge to prevent streaking. Did a 3 foot section at a time spraying on with a Hudson sprayer. Wear heavy duty rubber gloves and a mask with respirator and eye protection! I think I was expecting too much on the heavy oxidation. I had to use an orbital sander on these areas.

Excellent product.Would definitely buy it again.A++++++

Worked really well, I started at the 15 to 1 as recommended, and slowly strengthened it until it worked a bit faster. Be patient, keep it wet, and rinse thoroughly. It smells like muriatic acid to me.

Fonctionne très bien

Bought for my pontoon boat. Toilet bowl cleaner works better. Gave some to my neighbour and he had the same result. I have 3/4 of a bottle left if anyones interested