In the case of a restoration, I will do a permanent welding repair, but that's not always appropriate nor necessary. This photo shows some spider cracking emanating from a mounting hole on the side fairing from an RC26. A full welding repair would require repainting the piece, as both the front and back would be grooved and welded, the front ground smooth and body filler applied. But in this case, we wanted to preserve the otherwise presentable fairing, so I will stabilize the cracks to prevent further damage.
(click on images to enlarge)
(Below) I begin by cleaning the area and scuffing the plastic with a grinding bit in the Dremel, giving a rough surface to help adhesion.
I then shape the staples as needed, laying them strategically at the reinforcement points. Next, I use the plastic welding tool (a soldering iron will also work) to heat the metal just enough to melt them partially into the plastic. Overheating the metal will produce telltale lumps on the "good" side, so proceed cautiously.
































RSS Feed