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Tuesday, January 28, 2014

Estes Hornet Build Part 6, White Undercoats and Sanding


The fins and launch lug both got two fillets with Titebond M&TG.

Here's the model assembled. After primer sanding it's ready for a white undercoat.
The finished model is yellow and black. You'll need a white undercoat for the light yellow color.



With the white paint on you can see the Titebond M&TG boogers at the leading edge joint.
These can be sanded off using 400 grit wrapped around a Q-tip for cushioned sanding.
The front and back end of the body tube look really rough but this will be easily smoothed off with 400 grit.
The roughness of the body tube came after the filler primer was sanded down to the surface.
After 400 grit wet sanding this rough tube won't be noticeable. Some of the newer white body tubes just sand rough like this.

Here's the root edge fillets and launch lug fillets after wet sanding with 400 grit.
Remember, only wet sand after the tubes are considered sealed with paint. CWF is water based and does not seal tube seams or balsa.
Wet sanding is more like damp sanding. Be careful at the tube ends, don't let water get inside the tubes!

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