Koch-Chemie Vorreiniger B NTA-Fri is a concentrated, highly foaming, alkaline product with a pH value of 13.1 - without NTA and phosphates.

It is formulated to be used for pre-washing external surfaces and engine compartments, and has good properties for removing general dirt and grime, and it has good properties against insects and bird droppings. Like other alkaline products, it has a unique ability to clean surfaces - and this is done completely safely for chrome and other materials found on cars and vehicles.

However, it is important to remember - as with all other chemicals, that it should not be applied in sunlight and on hot surfaces. If the accident were to happen outside, you are often able to remove what has dried in by applying more of the same chemical (like solves like).

Mixing ratio:

• For pre-washing, it can be safely used mixed with water to 2-7% when it hits the paint.
• What you should never do, however, is use it concentrated.
• If you have extra muddy rims, it may be necessary to mix exactly 20%

How to use:

For exterior washing of vehicles

• Mix with water to the desired concentration. Remember that a foam cannon also adds water from the high-pressure washer.
• Mix out in a low-pressure can or on a foam cannon - make sure that the surface to be cleaned is cooled and placed in the shade.
• Apply the product and ensure good coverage. Leave on for 2-3 minutes.
• Rinse thoroughly with a high-pressure washer from the bottom up.