Not that it's an issue in this case, but I would like to share a tip here.
Our company is big in surface treating plastic parts, bottles, auto dashboards etc.
See our website at
www.lectrotreat.comAnyway, when it comes to adhesion of paints, glues, silicones, foam etc, using a surface treater will give you better sticking of your glue to the part. As an example, if you take a felt marker and mark a line on a Tide bottle or any other household bottle, the maker will most of the time just wipe off with little left on the bottle. Run the bottle through a surface treater and you will never get the ink off.
So how does that relate to us in our garage??? Our surface treaters are electric and we either create a corona discharge or a high voltage open air plasma discharge. But the other used process is a Flamer. No comment...
A flamer is an open air gas flame in a controlled length that when the plastic part is run under the flame, the blue part of the flame, it raises the surface tension of the plastic just like our electrical systems do. Most plastic we deal with is around 30 to 38 dyne. Dyne value is used to measure the surface tension. When HDPE, oil bottles - Tide bottles - etc, is run through a flamer it raises the surface tension from 32 dyne up to water wet at 72 dyne. Basically the Water Wet test is dunk the bottle in water and if it wets out, or no beading up of the water, it's water wet. That is the opposite of what wax does to our bikes and cars. Wax lowers the surface tension and water want to bead up or repel from the plastic. We have some information on our website that may be of interest to some of you.
So in a situation like the broken shoulder for a fairing screw, if you can quickly run a butane torch over the part without over heating it, it will take to the glue a bit better. But doing this by hand is somewhat subjective at best. But I've done it several times at home to improve gluing plastic parts together. Just practice on a sample part before you do the real part. It will improve your repair.
Thanks for listening, or reading in this case...