Читать книгу Garden Mosaics - Emma Biggs - Страница 25

Terracotta can be used as a base for mosaics, but in very cold areas these pieces, along with ordinary flowerpots, should be protected from frost in winter. The surface should be primed with dilute PVA glue before using cementbased adhesive for sticking. Polystyrene provides a stable base for outdoor mosaic, but it is not very strong and would collapse if placed under any pressure or dropped. Again, it should be primed with dilute PVA before sticking down with cement-based adhesive.