Note: groups.io will be down for maintenance on Monday, September 26th, starting at 9AM Pacific Time (4PM Monday September 26, 2022 UTC), for approximately one hour.
The publication "Fine Woodworking" magazine in the July/August issue had a
very extensive test article on all the different types of wood working
glues. The only [real] waterproof glue and the most strength of all tested
was 'Titebond III'. It is classified as a Type1, PVA glue. I have used this
glue for exterior applications with no problems. This would be an excellent
glue to use for making built-up formed model car roofs.
Roger Robar - modeling the B&M in northern NH.