Koch-Chemie Hull Precleaner acid "Hac" Acidic Pre-Cleaner (Marine Line) 10l

Acid-based pre-cleaner for boat hull and deck Koch-Chemie Hull Precleaner acid "Hac"

The Koch-Chemie Hull Precleaner acid "Hac" is a highly concentrated, acid-based pre-cleaner built specifically for the deep cleaning of boat hulls and decks. Thanks to its blend of mild acids and surfactants, it pulls off limescale and rust stains without harming the surface. A great fit for gelcoat, paint and plastic surfaces as well as stainless steel.

• Cuts through limescale and rust: Lifts stubborn deposits with no effort.

• Gentle cleaning: Safe on delicate surfaces like gelcoat and stainless steel.

• Works all over the boat: Ideal for hull, deck and stainless steel fittings.

Where to use it and what it's safe on

The Hull Precleaner acid "Hac" works across the board and does a great job on gelcoat, paint and plastic surfaces as well as stainless steel. It pulls off limescale and rust stains that build up from contact with water and the elements. The special formula makes sure the surfaces stay untouched and keep their shine.

How to use it for the best results

Depending on how dirty the surface is, you dilute the cleaner with water up to 1:10. For heavy soiling you can also use it neat. Lay the cleaner down on the surface with a suitable sprayer or sponge and let it dwell for 5 minutes max. Then rinse off thoroughly with water. Keep it off delicate materials like aluminium or galvanised steel.

Pair it with these for full boat care

For a full clean, pair it with the Koch-Chemie Hull Precleaner alkaline "Hal", which really cuts through organic muck like bird droppings or algae. After cleaning, you can lay down the Koch-Chemie Marine Protective Sealant to protect the surfaces long-term and keep the shine.