ECOS water-based products may not be used in direct contact with plaster, which contains lime and is detrimental to the product finish. Plaster requires an oil-based primer.
We recommend contacting the plaster manufacturer for recommended primers, which should be compatible to be used with ECOS water-based paints. All ECOS primers and paints are water-based acrylic.
Not recommended for use with limewash as the lime may be detrimental to the finish.