Beeck Maxil Pro Surface Preparation

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I have installed new windows on a granite cottage. To solve previous water ingress, I repaired the reveal with lime mortar, two coats of tanking render and one of insulating render from Cornish Lime. Lead trays and vertical dpc were also cut in. The rest of the internal wall is rendered with sand/cement and has been previously painted. The paint will be scraped back as much as possible

Can I use Beeack Maxil Pro over these substrates or should I use the Beeck Fixative?

marcusconrad Asked question November 12, 2020
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