Coating of polystyrene ceiling panels

More and more ceilings boards and cornices being installed these days are made out of polystyrene. They are light-weight and easy to mould into fairly intricate cornice designs. Not only are new ceilings boards often made of polystyrene, but there are a large amount of industrial buildings where thick (75mm) panels were used to form dropped ceilings - both for insulation and sound dampening considerations. Some of the older ceilings we have seen in wine cellars have been so contaminated with fungal growth that we have advised the client to replace them rather than trying to sterilize and coat them. Coating of these panels - after sterilizing with Fungal Wash, if required, is a simple process. Ensure that the product to be used is water-based and you can simply apply two coats by conventional means. Any aromatic solvent containing paint cannot be used, as the polystyrene will dissolve.