Patching damaged sheeting - a brief tutorial
While repairing a badly damaged wing I've had several opportunities to patch holed sheeting. Here's my process.
1. Mark a simple geometric shape around the damaged area
2. Trim away the excess balsa, beveling the cut in the process
3. Using the side of a pencil lead, shade the opening onto a piece of paper
4. Take a minute to check the required grain direction for your patch
Mix some Deluxe Materials Model Lite filler with water to create a paste just a little thicker than water.
Apply some filler to a palette knife and dab it into the cracks.
Flatten it out with the palette knife.
Note that this mixture sets well and is very easy to sand, so applying a little extra is no big deal.
A couple of other products I'm using, both from Lee Valley Tools:
35K09.10 - Set of 12 Palette Knives in Case
99W73.38 - Sanding Sponge Assortment, pkg. of 10
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