what color chips should i use for a dark yellow model?(yellow or grey?)

i am finishing my panzer and want to know which color would be better for chipping. Also does using hairspray on the model degrade it over time?

Red oxide primer

Degrade the steyrene plastic ? No

Degrade the basecoat ? No

Also for next time,this would be better served in the techniques or painting sections.

Second that, Tojo! Armor section, too. The guys who build armor as their favorite probably have some good advice on this particular question.

are you talking about the hairspray?

Correct I don’t believe hairspray can Degrade your plastic model or your basecoat.