Gardz from Zinsser is a very watery primer for walls that would be a lot cheaper and easier to apply to a large area. 123 is great fro woodwork. Double check the spec with Gardz but it's what I use to prime new filler so that it doesn't 'grin' through emulsion.
Unrelated to electric sheds, but I have a question about zinnser 123.
Looks like a people on this forum have used it, so seems a good place to ask.
Been stripping some woodchip, then sanding ready for painting.
In a few places the wall has been… I dunno PVA’d? But the paste is much more stubborn there.
I’ve sanded it smooth, but there’s still some paste residue.
I believe i can just cover this all with zinnser and it’ll be fine, right?
The worst that can happen is I need to touch it up down the line.
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