Re: What is the best tech for repairing cracked/broken fairings?
I use two soldering irons. A electric gun (quick heat on a small spot) and a large heavy iron.
Tack the pieces together with the gun, then fuze them solidly with the big iron.
You must melt all three pieces together at the same time. (The filler and the broken parts) It is essential to penetrate deeply. You must do both sides. Don't think for a moment you will not damage the paint, you will.
Subsequent work to build up the area can be finished as good as the original surface.
Acetone will not dissolve ABS
Any form of glue will take too long to harden and will continue to shrink for years Spoiling any paint over it.
I have a plastic welder but as of yet have not mastered the trick of using it. Amounts to a hair dryer with heated air focused to a small point, Tends to blow the melted plastic out of the joint.
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