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@Paul_Dunlop_UU @UlsterUniGES Acrylic polyurethane could be a useful coating. https://t.co/pBPAssuWTn. I must ask someone I know who did a PhD in restoring old castles!
@Paul_Dunlop_UU @UlsterUniGES Acrylic polyurethane could be a useful coating. https://t.co/pBPAssuWTn. I must ask someone I know who did a PhD in restoring old castles!
Evaluation of Acid Rain Resistant Clear Coatings for Stone Structures https://t.co/dXyC9iwxA3