The answer to this is not so simple. The key factor is the type of porcelain used. Porcelain tiles have changed a lot over time and today there are a variety of differing standards associated with them. The first generation of porcelain tiles were actually so dense that sealing was not required at any stage. […]

When Porcelain tiles were first launched, they were produced by just a few companies in Italy and they set pretty exacting standards. The resulting products had the following typical characteristics:

The tiles were much more dense and harder-wearing
They could be coloured in a much greater variety […]

There is much debate about Porcelain Tiles at the moment and it is a subject that I will no doubt return to again and again in the future but I wanted to give an overview to begin with. Look on any tile-related forum, walk into any tile shop, read the trade press etc. and you […]