Which gelcoat cleaners are best at combating waterline yellowing on boat hulls? Ben Meakins dons his rubber gloves and puts 10 products to the test
Boat Buddy Marine Surface Wash![](http://ir-uk.amazon-adsystem.com/e/ir?t=httpwwwpbocou-21&l=as2&o=2&a=B00HYGJV3U)
PRICE: £21.91/1lt
Contact: www.boatbuddy.org.uk
Boat Buddy Marine Surface Cleaner is sold as a second-stage product in an eight-stage cleaning system. It’s a similar formulation to Grunt! Boat Cleaner, and, as with that product, it’s designed to be brushed on, left for 30-60 minutes and then washed off. It left the hull in a good condition, bright white, with the worst areas requiring a second application.