Hi Rehd,

Why the second layer? It is a good question. First I started the best I could, read and went with a good designer. But I was informed that 6oz. was the glass to use. So many said this and only this that i just took this 6oz E glass was the unquestioned glass to use. Since I've seen there's more to it. I am using 6oz now cause i bought it before I knew I had a choice. Today I would go 4oz or maybe even 3.5 oz satin (2 layers). I know more now, but really don't KNOW about glass and wood composite strength. I do want a light weight boat, but am always concerned about trade offs for strength with my bias being to have strength. Most builders reccomendations have been to use a "football" layer of glass over the outside hull full piece and also one under the inside hull full piece. I did it on the outside of my hull and am doing it on the inside hull. If I had 4oz glass i would definatly like these 2 dbl layers, but at it is I am not sure enough about strength to drop this "second" internal layer on the hull.

I think what your saying is I can do the 2nd layer right away, but the glass will "catch" on the wet of the 1st layer and may become a mess to flatten only because of this. Good point, wonder if I could chance it cause I could just lay it in the with out moving much. Maybe wait until 1st layer is "set" first and then lay the 2nd. Wonder if I could lay both layers at the same time?? (Have already sealed the wood). Thanks.

Joe