The smell and the lack of a suitable cleanup for tools and such, along with the issue of heat generated during cure, weight, smell, Did i mention that before??

I built my first RC airplane fuselage from glass cloth and Polyester resin almost 40 years back. It was a resounding failure. I was told that you could place the brushes in a plastic bag and put them in the Frig for use the next day. It does work, but you can't eat or drink anything that was in the Frig when you put the stuf in. Let it be known that I didn't get a good nights kiss from the keeper of the Frig, my spouse, for several weeks, On ocasioon, I am still reminded of that foolhardy experment.

People tend to build on suscessful processes. Those that were not so successful tend to get swept by the way side. Epoxy, CA, Gorilla Glue, Tightbond, Elmers, and a couple others all have their proven place in building of models. While Polyester will work, the side issues and the results havn't brought to the use of the other items just mentioned. For stuff like cowls and wheel pants, it is a good choice, IF you have the molds and stuff to make use of it.

There was a very good article on laminations in one of the magazines in the last few months. The Mix of two, not very strong components, IE poly and glass resutlts in a strong finished product. Poly by its self is brittle and not very strong. Glass is also not very strong and will break. Combined, the give a strong finsihed product. I personally dont' want to mix glass and poly for an adheisive for my model work.

Don