A thin layer of carbody filler on the internal spout wall should make it reasonably waterproof once the two sides are glued together.
Once glued, the spout needed quite a bit of rebuilding - apply progressive layers of carbodyfiller to achieve a hard, smooth surface.
Sanding - after the majority of the filler has been filed off (to save time and energy), use a reasonably rough grade of sandpaper to take off the excess.
I needed to repeat the filling and sanding process several times to build up a smooth layer.
Start using finer sandpaper, once all the excess filler has been removed. This will start to produce a smoother surface the finer the sandpaper you use.
After several coats of high-build primer, and some very fine sanding using a high grade piece of steel wool, the surface is ready to spray.
The discs require some preliminary sanding with a high grade piece of wet & dry sandpaper.
Once the sanding is finished, the surface is ready to spray. For the discs I chose a light blue to compliment the dark blue of the model.
Build up coats of spraypaint thinly - they dry quicker and produce a more even coverage, there is also less chance of the paint dripping.
In between coats of spraypaint, a very light sand with a pice of 1500 grade wet & dry sandpaper should remove any imperfections.
The result is a smooth, even paintjob and a model that I am proud of (which is drying upside-down in the photo).
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