Koch-Chemie (TEA) Teerwasche A | Special Tar & Bitumen Remover 1L

Koch Chemie Teerwäsche A (TEA) is a solvent-based tar and bitumen remover designed to dissolve stubborn tar spots, bitumen, adhesive residue and oily road contamination from solvent-resistant surfaces.

Features & Benefits

• Special cleaner for tar and bitumen removal
• Dissolves sticky road contamination that shampoo cannot remove
• Suitable for solvent-resistant automotive surfaces
• Useful on cars, commercial vehicles, machinery and workshop areas
• Free from halogenated hydrocarbons
• Ideal decontamination step before polishing or protection
• Helps remove tar spots, adhesive residue and oily film
• Professional-grade solvent cleaning performance

Koch Chemie Teerwäsche A is a dedicated tar and bitumen remover for contamination that normal washing, snow foam or APCs cannot effectively remove. Tar spots and bitumen can bond strongly to lower panels, wheel arches, side skirts and rear bumpers, especially on vehicles driven on freshly repaired roads or high-traffic areas.

TEA uses solvent-based cleaning chemistry to soften and dissolve these sticky contaminants so they can be removed with less mechanical effort. This is important because excessive rubbing can introduce scratches, particularly on softer paint.

Teerwäsche A is suitable for solvent-resistant surfaces and can also be used in broader workshop environments where tar, bitumen or adhesive contamination needs to be removed. Because it is solvent-based, care should be taken around sensitive plastics, fresh paint, delicate trims and non-resistant surfaces.

For a full exterior decontamination process, use Koch Chemie Reactive Rust Remover for iron contamination and Teerwäsche A for tar and bitumen. After decontamination, follow with Koch Chemie Finish Spray Exterior or a dedicated protection product.

Pro Tip

Use tar remover before clay barring. Removing tar chemically first prevents sticky contamination from clogging your clay and reduces the risk of dragging tar across the paint.

Frequently Asked Questions

What is Teerwäsche A used for?

It is used to remove tar, bitumen, adhesive residue and oily road contamination from solvent-resistant surfaces.

Can it be used on paint?

It can be used on solvent-resistant automotive surfaces, but always test first and avoid delicate or freshly painted areas.

Should I use this before polishing?

Yes. Removing tar before polishing helps prevent contamination from interfering with correction and finishing.

Tar & Bitumen Removal

1. Wash the vehicle first to remove loose dirt and grit.


2. Ensure the surface is cool and dry before application.


3. Apply Teerwäsche A directly to tar or bitumen contamination.


4. Allow a short dwell time so the product can soften the contamination.


5. Wipe gently with a clean microfibre towel or rinse thoroughly where suitable.


6. Repeat if stubborn tar remains.


7. Wash or wipe the area afterwards to remove residue.

Important Use Notes

1. Always test on an inconspicuous area first.


2. Do not use on hot surfaces.


3. Do not allow the product to dry on the surface.


4. Avoid use on surfaces that are not solvent-resistant.