Model Preparation

• You'll have to prep the model's parts before assembly. A model kit comes with the parts attached to a frame which can be removed either by hand using a twisting motion on the piece, or with a hobby knife. Using the knife gives you the best results as twisting the parts to remove them may leave bits of the frame attached and require further removal of the bits either by the knife or with sandpaper. With either removal method you'll want to get rid of any extra pieces left from the frame or the model molding process before proceeding with the painting.
  
  Prior to painting, you should wash all model pieces in a solution of dish detergent and water, rinsing thoroughly. The plastics molding process leaves behind a thin layer of oil which causes difficulty with the first layer of paint applied. After cleaning the parts, buff the surfaces of your model lightly with high grit sandpaper, just enough to remove the glossy finish from the plastic.
  
  

Painting

• Apply a primer coat to all model pieces before your final painted coat. Spray paint is best to use for applying primer, creating a light uniform coat as a base for the model's actual colors. After you've allowed the primer to completely dry you can place the final colors onto your model. Hold smaller parts for painting with a set of tweezers to prevent your fingerprints from marring painted surfaces and to keep the oils from your hands away from the pieces. Any paint should be applied in a light layer to prevent running or clumping. You may have to apply two layers of paint in order to provide a uniform coat.
  When you've completed painting the model parts, place them in a paint box to protect them from dust during the drying process. A paint box can be made by taking a shoe box and cutting large holes in the sides and top. Tape a piece of coffee filter to the holes in order to allow air through the box while keeping dust away.
  
  

Assembly

• Assemble the parts once the paint's dried using a paintbrush to apply the model glue. By using a paintbrush you'll have better control over the glue's application, removing the chances of excess glue marring your paint job. Once parts are glued you should prop them into place holding the joints together until the glue has set.
  Once the glue has set, apply a gloss or matte finish to your model in order to preserve it from the elements. Any decals should be applied over the dried finish, after which the model is ready for display.