Koch Chemie Hull PreCleaner Alkaline Hal - Alkaline Nautical Pre-Wash 1L

Name: Koch Chemie Hull PreCleaner Alkaline Hal - Alkaline Nautical Pre-Wash 1L
Brand: Koch Chemie
Price: 23.96 EUR
Availability: InStock

~~€29,95~~ €23,96

Delivery between 06 June and 08 June

~~€29,95~~ €23,96

Alkaline Pre-Soak for Heavy Soiling

Removes Organic Dirt That Doesn't Come Out with Shampoo

Bird droppings, algae, high tide marks, and atmospheric pollution are quickly removed without the need for hard scrubbing and the risk of marking the gelcoat

Compatible with Synthetic Teak Decking and PVC

On boats with teak substitutes or PVC surfaces, it keeps the material clean without chemical reactions that usually appear in generic alkalis

Concentrate That You Adapt to the State of Dirt

For light cleaning, dilute at 1:60. For heavy organic soiling, reduce to 1:20. The same bottle covers maintenance routines and end-of-season attack.

Koch Chemie Maritima Hull PreCleaner Alkaline Hal – Concentrated Alkaline Pre-Cleaner for Hull and Deck

Concentrated, phosphate-free alkaline pre-cleaner. Combines special complexing agents and surfactants to dissolve organic and environmental dirt on gelcoat, marine paint, plastics, and synthetic decking such as artificial teak and PVC.

Dilution 1:20 to 1:60 depending on the level of dirt
Contact time up to 5 minutes without allowing to dry
Do not use on natural wood, aluminium, or galvanized steel

How to Use

Step 1

Wet the hull thoroughly with clean water and mask off sensitive areas such as aluminium or natural wood

Step 2

Dilute the product between 1:20 and 1:60 and apply with an alkaline sprayer or wash sponge.

Step 3

Leave on for up to 5 minutes per section, do not allow to dry in the sun or on the surface

Step 4

Rub if necessary, rinse well with water, then proceed to polish and seal.

FAQs

It was designed for organic and environmental dirt. Bird and duck droppings, algae, high tide residue, atmospheric pollution stains and accumulated dirt after months docked in the marina quickly yield to this pre-cleaner.

Each targets a specific type of dirt. Alkaline Hal dissolves organic dirt, grease and environmental deposits. Acidic Hac removes limescale, rust and waterline stains. For end-of-season cleaning, both are used in sequence for a truly clean hull.

No. The strong alkaline formulation attacks aluminium and galvanized steel, potentially leaving permanent stains. Isolate these areas before applying and rinse immediately if there are unintentional splashes on these parts.

Yes, all orders include a tracking number which will be emailed to you after the order has been shipped.

You can return it up to 14 days after receiving it at home. The product must be returned in its original condition, unused, and in its original packaging.