[cobra de capell]

This is from the site posted above (mbzponton.org)

FOR BEST RESULTS

Before painting, sand the tires and use a Silicone-Remover (Spirit Wipe) to clean the tires and get rid of all dirt and silicone.

Paint the tires with 3 layers of WTP.

Use the Westley´s Bleche-Wite and the sponge to clean off dirt and dis-coloration from the whites.

To achieve a "perfect" curved paint line it is best to outline the desired whitewall area using common automotive painter's tape (pin stripe tape). After painting, the painted outlines must be scored to prevent tearing the paint upon removal of the tape."
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Seems like a good routine - preparing the surface and finishing - regardless of what type of paint one uses.