|Monthly Tech-Tip |
Alternate Names: Pyrax HS#5
Described by the manufacturer as a high sericite pyrophyllite for sanitaryware which aids in early mullite formation offering increased fired strength, faster firing cycles, and increased thermal shock resistance.
Pyrax MP, another grade, is used in rapid fire ceramic wall tile bodies. It lowers firing temperature, produces low moisture expansion bodies with good craze resistance, increases thermal shock resistance, and greatly increases firing strength in vitreous bodies.
Materials not classifiable as commonly known aluminum silicates. For example, kaolin is a common aluminum silicate.