GRUNT’s Amazing Cleaning & Polishing Products
Dave had a bit of a project restoring his Cat (Polyester Fibreglass boat with gelcoat finish) to its former glory.
After a basic hose off and wash, he used WATERLINE STAIN REMOVER,
then GRUNT EMER-GEL Rust, Stain & Oxidation Remover
(Dave calls it “Elbow Grease in a Can !) to remove the stubborn stains.