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Neil123456789
Guest
I need to render onto an old internal concrete wall (600 meters) it used to be an old reservoir and had water on the walls for about 50 years. It is now completely dry and has been wire brushed with an angle grinder, washed and dried. I have contacted Knauf and Gypsum but they do not support sand and cement and would not recommend their Betokontakt or Bond it. Can any body recommend anything that will hold the render on, some of it will be about 25 mm thick? Regards Neil