Quality Chemical Barnacle Buster Hull Cleaner for Boats - On/Off Boat Hull Cleaner - Boat Bottom - Star Cleaning Performance - 128 oz (Pack of 2)

Incredible product their lads . A wee bit of caution. This is a real chemical chaps! Wear protection eyes, skin, use in open area! Smells! So while you’re having your favorite beer, just remember not to touch Wee Willy after applying this chemical. I learned the hard way when I went to go take a leak.. got some on me Johnson and that’s when I learned the Jig. All of the directions are good but this is some insider information! The longer it sits the better it gits dem barnacles!! Just make sure you knock them nasty barnacles down with yer scraper THEN apply chemical!Cheers!

Cleared out the account lines that had marine growth.

I tried this to clean some seasonal growth on the fiberglass deck. Didn't seem to work very well so I tried hydrogen peroxide which not only did a much better job but wasn't dangerously hazardous either.

Works ok for general cleaning but not especially effective on barnacles

Worked great for removing starter barnacles.

No elbow grease needed!

It is a good thing that each gallon was packed in an individual heavy plastic bag. The caps on both jugs were broken and quite a bit of the product had ended up in the bag. Could have been a big problem considering the caustic nature of the product. I used some this afternoon on my metal boat lift and it did seem to loosen up the barnacles...with the aid of my pressure washer.

Totally waste of time and money, barely did anything