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I didn’t do it, I bought the material from a company, and they had plasterers who did the job. But they used 0.4m3 of a lightweight insulating lime plaster, and they look like they’ve used a third of a 25kg bag of pozzolan. I think they were putting a couple of cup fulls in each mix.

No what does it do, ruin it i presume?

I did that, said it was similar to a fly ash and that it added to the hydraulicness of the lime. It contains copper and magnesium I think he said.

So why is it sold by people claiming to be specialist in lime plastering? What the hell?

Yup that what I worked out, two separate products, so.... what is this stuff? http://www.limestuff.co.uk/additives-primers-sealers/pozzolan-ggbs/ That’s what got mixed with it.

I have tried to avoid cement based stuff completely and it’s taken some doing. Although this GGBS stuff is a curve ball. I just hope it’s not f***ed my lime plaster up the way I didn’t want it too.

Yeh it’s just gone on and showing cracks but was told to flat them back with a float as they appear and as it dries. I read Pozzolan GGBS is cement based and would completely ruin the breathability of the lime? Is that correct?

Oh dear I was worried you would say that it’s been used internally. What are the problems caused using it? If any?

Good Evening, Could someone enlighten me, what is Pozzolan GGBS and should it be used or not used in Lime Plaster? I am getting confusing information. Thanks so much, Joe

Think I may have found someone close to do it, that seems a bit more clued up to doing the job correctly. Could someone confirm some points that were mentioned above please? - How would you control suction and ensure a good back ground to plaster too (as mentioned above), is that just purely...

Anybody know any worthy plasterers near Scarborough, North Yorkshire that could do the job?

Ok that’s great thanks again, but kinda still leaves me with no one to do the job. This is a pain in the ass... How long would it take to learn to lime plaster?

Hello again, a bit further advice if possible please. I have had a few people quote now for the job and 2 of them want to PVA the walls before lime plastering. What are the consequences of this regards the breath ability of the plaster afterwards? Also, they suggested that they would mix...

Again thanks for the responses, very, very helpful.

Excellent answer thank you so much. I know you say there isn't a "true" mix, what I was referring to possibly was a general idea of a mix, that if someone possibly tried to con me into something else, I would have some knowledge of the ingredients of lime plaster. So, in essence, what should...

Good morning, I have joined to try get some advice on Lime plastering in the hope of not been sold something I don't want and a job doing incorrectly, so I hope someone can help. I have an old Victorian terrace and wish to have an internal wall plastered in Lime to match the existing Lime...