HB Body S.A.


Clear/ Topcoat runs


Incorrect spraying pressure or spraying gun set up.
Incorrect spraying viscosity.
Incorrect application technique.
Incorrect application temperature usually too low.
Use of low quality of thinners/wrong thinners or hardeners.


Follow the manufacturer’s instructions of application.
Ensure that the equipment used are in good condition and working properly.
Make sure all the products used are brought to room temperature in case of really cold weather.
Use always the recommended thinners or hardeners.
How to fix the problem.
Sand and polish if runs are small enough.
Sand and repaint if runs are very big.