Good Glue For Modeling

I have some cabooses and I would like to cover the windows up with styrene like the prototypes I see today. I recently saw some HO Milwaukee Road cabooses with this done. My question is, what kind of glue should I use to apply the styrene to the windows?

I like Ambroid Proweld, though to be fair there are other brands of the same chemical - Methylene chloride.

the stuff is amazing. set your piece in place, apply a tiny drop of solvent from the end of the tiny brush, it runs around the joint by capillary action, and the pieces are instantly welded.

use in a well ventilated area !

You have two choices;
1) Styrene to simulate a panel covering a previously existing window opening.

2) Virtually "Erase" the window opening, making the area flush with the body surface.

For #1, you already have an answer.

For #2, Testors makes a BODY FILL for plastic models which comes in a BLUE & WHITE tube which you can generally find right next to their glue for plastic kits.

Cover the window opening from the REAR with a small piece of styrene, fill in the area and sculpt flush with a small putty knife. Sand evenly and paint, it will look like a pro job or as if the model came from the manufacturer that way. it's a neat way to alter window configurations to make unique private and business cars too.

D/