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JonoMarshall-
Believe it or not, it's sandstone (i think - house is c.120 years old) - defo not wood..!
Hacked it all back to solid substrate before giving the first couple of layers of the repair mortar stuff.
It was in such a mess due to a leak in the old gutters directly above, and a crazy amount of buddleia all around the back of the house
hvsds
I’ve been building up an old external windowsil with Toupret masonry filler, using a questionable cake-icing type method, and naturally the results and very pretty.
Can I ‘dilute’ the mix with a bit more water to make it runnier without compromising it’s strength? Will it just take a bit more time to cure?
Planning on getting some melamine board to make some rudimentary formwork.
Here’s a before; current; and what had been growing in the middle (judging by the top inch or so that crumbled off it’s previously been ‘repaired’ with sand-cement, without grano)