Peak 2HF Fibreglass Boat Deoxidiser 1 litreSay goodbye to yellow stains on your boat hull.Easily remove chalky gelcoat, rust stains and brown waterlines from your fibreglass boat hull. The perfect preparation prior to wrapping or polishing your boat. Used and trusted by serious fishermen Australia wide.• Instantly converts & removes yellow stains• DIY friendly• Gel formula clings to fibreglass surfaces for easy application• Harsh acid free & BiodegradableInstantly convert and remove yellow stains caused by oxidisation on all fibreglass surfaces. No harsh scrubbing required.Suitable for boat hulls, and other fibreglass surfaces such as horse floats, caravans, and more.Our DIY-friendly gel formula allows for easy application. Simply sponge on, wait a few minutes, and hose off.Fully biodegradable formula. Harsh acid free.Safe on metal surfaces including aluminium, chrome, stainless steel, and plastics.Directions:Wear gloves and protective eyewear.Sponge onto fibreglass surface. Wait for a few minutes. Rinse with clean water.Formulated & Made in Australia. A one Litre bottle treats a 21ft boat.