Here I am with a question about restoring casein.
I already cleaned the body, removed the old petrified sac, and ordered a new one (I'm waiting for it, I should receive it within days)
The cap of the pen has some "corrosion" marks, see in the attached image the red circled spots. There is a way to fill that marks and then sand them?
I've also practiced static modelling in the past (tanks, airplanes, ships...) so I'm quite used to work with plastic materials and resins.
I'm wondering if there is any safe material to use to fill that marks, maybe a transparent paint or some resin?
Thank you in advance for any suggestion.