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The Old Grammar School House in Shrewsbury is a Grade II listed historic building, which was formerly part of the school and has been converted to an office space.
KEIM were approached by Randle Building Solutions, who had used KEIM Mineral Paints on a previous project in Edgmond, Shropshire. The conventional painted stonework was flaking and blistering due to excess moisture trapped within the substrate. The painted brickwork on the front of the building was in good condition.
Bryan Roe of KEIM Mineral Paints recommended stripping the paint off the stonework and the brickwork at the back of the building, using KEIM STS 7M, that was holding damp and flaking. The gloss paint on the stone windows surrounds were to be stripped as much as possible and sanded down to create a key for the mineral paint to bond to.
KEIM Contact-Plus was diluted with KEM Soldalit Fixativ to equalise surface textures and fill hairline cracks. KEIM Soldalit, in a bespoke grey colour (KS01 0312) that was matched back to the original paint colour, was applied to create a breathable, long-lasting finish.
KEIM Soldalit is fire resistant and A2-s1, d0 classified. The sol-silicate properties mean that it can be applied over unpainted and previously painted surfaces without the need of a primer.
