New mould sealer cures at room temperature
When applied to a mould, the sealer forms micro-thin, thermally stable surfaces that are chemically bonded to the mould surface, thus sealing micro porosity. Compared to the predecessor product, curing time is reduced to two hours. The new product can also seal larger porosities because it allows thicker coatings to be applied. The sealer can be either sprayed or wiped on the surface at temperatures of between 13 °C and 40 °C. Energy-consuming preheating of the mould is therefore unnecessary. After curing, the sealing remains stable at temperatures as high as 400 °C.