| Sounds impressive. What does it cost?

I don't know if my local pricing is relevant to others. The quote I got was a bit cheaper than H80, and saved shipping from Canada with local pickup.

But, after digging into the quote, I think more savings is possible.

The material comes to them from the factory in a 'bun', which is an oversized dinner roll type thing, complete with hard crust, that is roughly 8' wide and 16' long and various heights according to the product specs and the specific batch. This is normally string cut into whatever is needed.

They cut this into pipe insulation. I guess they have some sort of semi cnc string cutter to do this.

In discussions with the quote guy, it seemed the pricing could be dropped about 20%, perhaps, if I get a whole bun just sliced in ½” sheets, like an oversized sliced bread loaf, with the crusts on and the sheets bun shaped. This saves the factory the work of squaring and sizing the bun to a 4x8 sheets, and the cutoff is thrown away. Of course then I would have to cut the 'crust' off, which I think is not much difficulty, as the 4x8 sheets need cut to shape by me anyway.

Also, if i don't have to get the coarser bubble special product, I could save even more, as the composite product is a rather unusual run, and is more expensive. Even the factory only has a few buns available.

At this point I backed off pressing for more specifics. Its fall here and this distributors busiest time, with a 3 week backlog. I think the plant is running 20h a day, and is looking at going to 24. I be back to bugging them next month, or later if they are still busy.

This got me thinking...
1 they must have a lot of scraps for testing.
2 other areas must have the same set up. Assuming they have industrial factories.
3 not sure I need the finer bubbles of the special formulation.

| If you can get some samples, I will test them.

I can see about getting you and me samples. Or perhaps we can find a local pipe insulation maker to you.

| Tried melting plastic into fibreglass. Nowhere near the resin fibre ratios (or the pressure) of vac bagged epoxy, but the bond is excellent and tougher than epoxy.

Neat. Can we get more details of what you were thinking to do and what this helped or fixed?

| Also tried heating the surface of foam to make a tough outer layer. Worked well, but the exchange is over 10:1 bubbles to solid, so probably not viable for much more than furniture. Probably better ways to achieve it.

Did the epoxy stick well to the debubbled plastic surface? What foam did you debubble? Did you mean Furniture in the boat? Is that a highest load/impact area where delamination is most likely?

| > They also have a laminate version that has less course bubbles, and slightly less compressive strength.
| >
| > Which made me wonder if the Divinycell has large bubbles or small fine bubbles like the 700kpa XPS. Rob you have seen both, please advise when you get a chance.

| H 80 is much bigger bubbles than the Foamular 400. H100 about in the middle. Bubble sizes differ a lot between sheets of the 'same' weight..

Do you think bubble size matters? Should not finer bubbles mean less epoxy? I assume the Foamular 1000 is even finer still.

I know there has been discussions about large bubbles being better for adhesion, but I am not sure that matters, as foam should not/is not loaded like that, epoxy sucks in that role as it is weak when it is thick, and we carve channels for flow anyway.

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