Posting a quick Look at the interior of my Great Wall Hobby P-40, prior to the painting of the interior. All of the light green color is where I masked the parts to keep paint off. It’s much easier to do this rather than try and remove the paint afterwards.
You will find that you also cannot just glue the parts together with paint on them as the glue will not bond correctly to the plastic and pull off later on. This is true especially with cyanoacrylate, also known as super glue. Once dry, the super glue actually just bonds to the paint, and will pull right off the part. Normal model liquid cement which actually melts plastic for the bonding will have a problem with curing since the paint will cause the glue not to bond correctly
My plan is to use Mission Models paint on the interior, their version of zinc Chromate Green. I feel that this color is a bit too green but at this time I am not going to attempt to tone it down. As you can see in the pictures, all of the interior bulkhead locations have to be pre-painting masked along with the edges of the fuselage. It is a bit sad that all of the details will not be very visible once the fuselage is completed.
Written by Paul Caldwell, for Arkansas Fine Scale Modeling.