Efflorescence in paint removal can occur when a porous substrate, such as wood, has not been sufficiently washed down during the paint stripping process. Using a product such as Kling Strip is a three-part process; application, dwell time, and washing down of the residue.
Kling Strip works by dissolving the paint to a water-soluble residue; if the washing-off of this residue is insufficiently thorough, then elements of it can manifest themselves as efflorescence as the substrate dries out.
So, it is most important to thoroughly wash off the residue with plenty of fresh water to avoid efflorescence occurring. A scrubbing brush is ideal followed by liberal application of water with a sponge. Then, allow the masonry to fully dry. This normally takes a couple of weeks in fine weather but can clearly take much longer in winter. As the wood dries it will become clear as to whether efflorescence is manifesting. If it occurs then brushing off the residue and neutralising the surface with our Neutraliser N-20 will, as the name suggests, neutralise the substrate and eradicate any efflorescence that may have occurred. Once the substrate has fully dried it is then ready to re paint or treat as desired.
Experienced contractors seem to find little need to neutralise following work with Kling Strip.
