Assuming the lime render is clean, dry, sound and prepared as detailed in the technical data sheet, we can recommend Keim Royalan for this application.

Onto unpainted surfaces Keim Royalan should be applied as a two-coat system, the first coat to be diluted with 20% by weight Keim Royalan Dilution and applied by brush or roller, working well into all surfaces, with a minimum period of 12 hours between coats.

For previously painted surfaces Keim Royalan Grob should be used as a first coat.

It is available in a range of colours, Keim Colour Samples are available.