Koch Chemie Finisher HydroBoost Wet Sealant

Koch Chemie Finisher HydroBoost is a wet sealant: you apply it during washing, on wet paint, and simply rinse it off afterward. That makes HydroBoost different from classic sealants that go on dry and usually need buffing in. Right after spraying, the paint gets a hydrophobic layer that makes water and dirt bead and sheet off, the so-called beading and sheeting effect. You see more gloss and depth in the paint immediately, and the surface dries faster because water clings to it less. Because dirt sticks less easily, the car stays cleaner for longer after the wash. HydroBoost is meant for regular maintenance washes: you spray it over the wet bodywork after washing and rinse it off before drying. This approach barely adds any extra time compared to a normal wash, since there's no separate buffing or drying step like with traditional sealants. For anyone who washes regularly and wants to protect the paint between more thorough maintenance sessions, this is a low-effort addition to the wash routine.

What's inside

1 bottle of Koch Chemie Finisher HydroBoost Wet Sealant, 500 ml, used with a spray bottle on wet paint.

Why this product

• Instant hydrophobic protection: works already during washing, on wet paint

• Spray-and-rinse application: no separate drying or buffing step needed like classic sealants

• Optimal beading and sheeting effect: water and dirt bead up and run off the paint faster

• Instant gloss and depth: visible result right after rinsing

• Reduces dirt adhesion: the car stays cleaner for longer after washing

• Speeds up drying: less water clings to the surface

How to use

1. Wash the car as usual first with shampoo or snow foam (HydroBoost works as the final step in the wash, on already cleaned paint)

2. Spray HydroBoost over the still-wet bodywork (Work panel by panel so the product doesn't dry prematurely on the surface)

3. Rinse the paint immediately with clean water (The beading and sheeting effect appears on the surface while rinsing)

4. Dry the car as normal with a drying towel (Water clings less after the treatment, which speeds up the drying process)

Pair it with the Koch Chemie AS Car Shampoo and the Koch Chemie Exterior Wash Mitt for a full wash before rinsing with HydroBoost.