




Koch Chemie · Teerwäsche A · TEA · Tar & Glue Remover
Solvent-Based. Safer on Plastics & Trim. Less Aggressive Than Eulex. The right tool when Eulex is too much — and this is still very capable.
Koch Chemie Teerwäsche A is a solvent-based tar and glue remover designed to sit a step below Eulex in aggression. Where Eulex is a single-pass solution that gets the job done in one go, TEA's strength is dialed back to where it can be used on plastic trim and exterior surfaces with far less concern about changing or damaging the finish underneath.
Do not underestimate it on that basis — this is not a weak product. TEA is very capable of removing tar spots and exterior panel adhesives with dwell time. What it offers is control. There are scenarios where going full-bore with a heavy solvent is the wrong call, and TEA exists precisely for those situations.
Safe on all paint and exterior plastic surfaces with appropriate dwell time. As with any solvent, test a spot first — texture retention on plastic, colorfastness, and surface compatibility all matter before committing to a full area.
Formula
Solvent
Less aggressive than Eulex
Safe On
Paint & Trim
All exterior plastic surfaces
Method
Dwell & Wipe
Test spot first · always
"You do not want to go full-bore with every scenario and application — and that's why this exists."
— Detail Division · on Koch Chemie Teerwäsche AWhat TEA does
Use Case Reference
Paint & Exterior
Tar spots · adhesive residue · badge removal · general exterior solvent work
Plastic Trim
Safer option than Eulex on trim · dwell time required · test spot first
Tire Prep
Remove yellow & red manufacturing dots before dressing · new tires or when needed only · not for routine use
Method
Apply · dwell · wipe clean · repeat if needed · always test inconspicuous area first
The right solvent at the right strength for the right job. TEA exists because not everything needs Eulex — and knowing the difference is what separates a good result from a costly one.
Directions & Key Notes
Always test an inconspicuous area first. Check for texture retention on plastic, colorfastness, and any surface characteristic that matters to the job. TEA is capable — which means it deserves the same respect you'd give any solvent before full application.
Tire sidewall use — new prep and when needed only. TEA can remove yellow and red manufacturing dots effectively before dressing is applied. This is suggested for new tires or specific prep situations — not routine sidewall cleaning. Long-term solvent exposure is not good for rubber. Use your head: apply when warranted, not as a habit.