should i sand the UNPAINTED plastic before applying the Plastic Primer ?
BTW : its the lower lip of my RA65 !
cheers ...
coFF
Sand it, clean it, then prime it. Always follow the directions on the primer can as well, some require that you use it within a certain time frame (ie. after 30 minutes, before 1 hour).
Clean it with wax'n'grease remover, won't damage the plastic and will make it clean enough for the primer to stick.