Be interested to hear how it works, I suspect it is likely to be watered down external grade PVA with a little washing up liquid to help it spread.A bit of a test earlier in the week has proven to be good. I bought some of this glue for gravel. I have applied it where I have troublesome ballast, that bounces onto the path when it rains, or gets dragged by the hosepipe etc. Working well.
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