What's an appropriate outdoor sealer that will protect Quarry Tile outside?

QUESTION

Stains and Sealers: We have installed Quarry Tile on open air deck and balcony. After the project was complete we used an outdoor sealer. We found that rain and sun causes gray stains on the tile. We removed the stains with a paint remover solution and the tiles look clean and like new.

We are looking for an appropriate outdoor sealer that will protect the Quarry Tile giving it a wet, shinny look and yet not stain with the rain or sun.

ANSWER

ANSWER - Generally speaking surface sealers, that give you a wet look, that don't breath (allow air to pass) will trap in moisture that can cause a cloudy discoloration. Penetrating type sealers are normally breathable sealers, but they don't give you the wet look. There are some new products called enhancers that are suppose to be breathable.

Go to Expert Answers to find the Resources column and click on Cleaners and Sealers. A page will come up with some of the major manufacturers of sealers for ceramic tile. I suggest you visit their web page for additional information.
ANSWER - Generally speaking surface sealers, that give you a wet look, that don't breath (allow air to pass) will trap in moisture that can cause a cloudy discoloration. Penetrating type sealers are normally breathable sealers, but they don't give you the wet look. There are some new products called enhancers that are suppose to be breathable.

Go to Expert Answers to find the Resources column and click on Cleaners and Sealers. A page will come up with some of the major manufacturers of sealers for ceramic tile. I suggest you visit their web page for additional information.