New resin

[screenman]

Now I am assuming you are an expert on this product, whilst I certainly am not. I think Silane coupling agents have a refraction index not quite the same as glass, would this not effect the overall appearence of the finished repair. Also what happens to the volumes of water as discussed earlier in the post which would get pushed to the ends of the legs, then absorbed into the PVB?

[zerolando]

Hello there,

Just to clarify things first. I am no expert in any product. I actually don't use any of the products that I mention or discuss here. I am not even in the WSR business yet
Therefore I am neither selling nor advertising any products. Just expressing/discussing ideas on this forum as a man with a scientific background. I am an engineer among other things.

As for the subject at hand, the purpose of coupling agents like silane is not to be "pushing" the water. If its function was to push the water , you'd have the problem you're talking about.
The idea here is to chemically react with water as to eliminate it ...
R-Si(OC2H5)3 + 3H20 (water) --------> R-Si(OH)3 + 3C2H5OH (ethanol which evaporates) <------ as can be seen the water on the left hand of the equation , disappeared on the right hand of the equation.

Of course this new resin, might not be using silane. I just used silane to express the idea of chemical reaction with water as a way to evacuate it. (A cycle of Vacuum which is advocated by some products around here is a faulty procedure. I'll touch on that in a separate post from a science point of view).
As for the refractive index issue. I think , silane like any other resin or product can be made with different refractive indexes when mixed.

But, to be clear on something!
Even if you find/manufacture a silane coupling agent with a refractive index of 1.52 or close and you want to use it, drying out as a first step, with whatever product you use for that, is still HIGHLY RECOMMENDED and the best way to go as a first step in the whole procedure.

[screenman]

Thanks for the information, I certainly look forward to reading more of your posts.