Should I reseal the cut edges of Armstrong low density mineral fibre products? If so what paint should I use?
This may depend upon where the tiles are to be used. For example, in food manufacturing, preparation and eating areas, resealing may be appropriate to prevent loose fibres migrating into the atmosphere. You should consult further with the specifier if the written specification is not clear. If cut edges do need resealing on-site, we recommend the use of a PVA adhesive used for building applications, mixed with water in the ratio 1:1 or as is sufficient to make the solution suitably viscous for applying by brush. If the cut edges will be visible and need to match the tile’s face colour, then the PVA will provide a good primer coat for the decorative coat.
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