The name letters should read clockwise, to the right.
Note how the letters lean down, like a down swept fin.
I drew an arrow to show how the fin should intersect the centerline of the body tube.
I tried to fill the nose cone seams using medium CA glue and sanding to surface.
Well, the CA glue doesn't stick to this polystyrene plastic!
Filler/Primer and paint doesn't adhere to this plastic either.
Rough up the plastic surface before spray painting with color.
The upper picture shows a painting "handle" using a wrap of copy paper.
Hrm... Polystyrene is typically used for plastic models -- so it the usual model glues and paints should adhere well. Aside from giving the parts a wash in soapy water and light scrub with toothbrush (to get rid of any residue such as mold release or skin oils), the other thing that you sometimes have to watch for is a glossy surface (which could sometimes be a bit too "slippery" -- and may require a bit of scuffing with sandpaper to give more "tooth").
ReplyDeleteOf course there are possible variations to polystyrene. The Japanese manufacturer Bandai has a formulation of polystyrene in their kits that tends to be a bit more "bendy" (likely due to many of their kits being of the snap-fit type) -- but you have to be careful with certain solvents. Using something like turpentine often degrades the plastic, often causing it to become brittle.
Hi Naoto,
ReplyDeleteI'm positive it's a Rocketarium plastic nose cone provided in the kit. This has to be a polystyrene variation you mention. Even with a pre-paint wash and light scuff sanding, the paint still didn't stick well.