What should the mix be for you're scratch coat if you're going weaker per coat over a limey 6-1 background, or wouldn't it matter because you've used sbr?
just go over with a quick sbr wash at about nine parts water to one sbr and top straight off with a 6:1:1 mix scratching and butter coat as you go, if you get my drift (and maybe a wash down with an algicide prior to application to sortout any nasties)
i have done it a few times bead up day before sbr and top coat looks no different to usual scrath and top coat
cheers guys just wondererd if many other people do it
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