Scrape off as much as you can and let it dry-out naturally, which could take a long time, before attempting to redecorate.

Allows painting of new render finishes and re-pointing repairs without alkaline contamination of the paint, which would otherwise delay painting by up to 2 months. Remove as much as the dust as you can with a dry brush and scraper and see how it looks. If the surface is fairly solid try priming it with a thinned coat of masonry paint. If that goes OK proceed with over-painting. If it’s still loose you may have to seal the areas affected with a stabilising solution – but only as a last resort. I have tried stabilising solution and PVA but the problem keeps recurring. Any suggestions to prevent this happening would be helpful. A subject that crops up a lot on the topic of exterior wall paint is ‘Stabilising Solution’ or ‘Primer’.I am about to re-paint some stonework outside my house. It has previously been painted, but in areas it is a little flaky and kind of like white dust build up, think it’s salt or something like that. Kingfisher “Weatherflex Stabilising Solution” is available in 5 litre plastic containers. It should be stored in a cool, dry area, AVOID frost and direct sunlight. Shelf life of the product in, unopened sealed containers is 12 months. For our situation it is a little too soon to tell the success of Lakeland’s stabilising solution on our bathroom problem wall area. This one wall area (a small cluster of patches) is particularly troublesome with a gradual peeling and bubbling appearance (under the painted surface) And this taking time to reappear once you cover with a fresh coat of paint. However what we have noticed is the Lakeland’s stabilising solution is not only pleasant and odourless —and oddly almost as transparent as tap water—and you're not sure if this only a water that you’re applying : ) However a noticeable difference is apparent once we painted over Lakeland's stabilising solution with white pigmented organic emulsion paint There seems to be a far more opaque surface quality that seems to suggest that not only is Lakeland's stabilising solution useful for troublesome unstable or damp patches on many types of wall surfaces but also this medium improves the colour density of the applied painted areas. Would you ever used a watered down first coat on areas of render that are dry and chalky so have been treated with stabilising solution?

Tools and equipment should be cleaned with warm soap and water immediately after use. Pump sprayers especially should be thoroughly flushed through with warm soapy water and then flushed with clean water until free of all residues. DO NOT allow to dry before cleaning.

Just bear in mind that the stabilising solution will impair the breathability of the finishing coats so only apply to areas where it’s really necessary. If this be the case then scrape off any loos paint, allow to dry out over a period of a few weeks and paint again. You may well find this is an ongoing process or it may be isolated to one or two problem areas. Stabilises and hardens “friable” masonry or masonry surfaces which may have “gone soft” due to extreme weathering.