too true and its easy to do
what you need to do is very thoroughly prepare your surfaces, they have to be roughed up very well! You can do it with a plastic wire brush in a drill.
Bostik 2402 probably 1/2 a litre
Plastic wire brush http://www.tooled-up.com/MicroCatego...=3877#prodlist
Roller or heavy scraper.
Buddy or two
disposable latex gloves
After prepping the strake and tubes wipe down with a rag and thinners. after a while waft the heat gun over the areas to ensure evaporation of thinners.
Masking tape either side of the glue line will ensure no overspill of glue
Mix the glue up with a small amount of thinners 10% and hardener leave for a minute then paint a thin coat on both surfaces when this dry do it again. previous to this you will have put on 2 pairs of the disposable gloves. It means you can get rid of the top pair when it gets too gluey. When this coat becomes tacky you have to do the sticking
Now that you have gotten wasted on the glue fumes the job becomes a lot more fun
When you apply the patch it's a one time hit so you need to get it right. when it's in place work the heat gun over it and rub it in firmly with the roller.
You'll have to glue outside of the worn area and obviously I would abarid the worn area very gently