cleaning Expert Answers Stains stone

What caused my limestone tile to develop a yellow/brown stain along its edge?

ANSWER -  Normally if you have a  yellow/brown rust-like color stain it is due to a combination of the stone being subjected to excessive moisture and due to the presence of metal, or that the…

Read More
cleaning Expert Answers Maintenance sealers Stains stone

How do I remove the stains in my Granite Floor Tiles?

ANSWER - The dark color spots could possibly be due to underlying moisture below the granite tiles or they could be stains in the granite tiles. Granite is suppose to be technically impervious meaning low…

Read More
cleaning Debonding Tile Efflorescence Staining Expert Answers Exterior failures Inspections Maintenance Stains stone

Why is my Bluestone Patio Tiles coming Loose and Have Efflorescence?

ANSWER - If the flagstone shaped Bluestone is loose and has excessive efflorescence staining then it wasn't installed correctly.   If the patio had been designed correctly and the stone installed properly it should perform well…

Read More
Ceramic and Porcelain Tile cleaning Expert Answers Grout Maintenance Stains stone

What is the cause of my grout staining, and how can I remove the stain?

ANSWER - You didn't mention what kind of tile you had.  Natural stone of various types are known to contain ferrous oxide that can lead to staining in the tile or the adjacent grout. Since…

Read More
Ceramic and Porcelain Tile cleaning Expert Answers Stains

How to remove Bleach Stain on my High Gloss Black Tile?

ANSWER - Bleach is high in alkalinity with a pH value of about 12.  Strippers used to remove paint and sealers, so it can be very harsh. High gloss black glazed ceramic tiles is known…

Read More
Ceramic and Porcelain Tile cleaning Expert Answers Maintenance

What is the best way to clean my Ceramic Tile Floor?

ANSWER - The best way to clean a ceramic tile floor is to purchase a neutral based cleaner/detergent and apply it to the floor.  Let it sit for 10 minutes or so.  Then use a…

Read More
Ceramic and Porcelain Tile cleaning Efflorescence Staining Expert Answers Maintenance Stains

How to Remove and Prevent Efflorescence from Coming Back?

ANSWER - Severe efflorescence is a symptom of an excessive moisture problem.  Removing the efflorescence stain is treating the symptom rather than the problem. Efflorescence is a mineral stain.  Minerals are forms of salts that…

Read More
cleaning Expert Answers Grout Stains stone

How can I clean the Grey Limestone Pebbles to remove the Brown Stain from Grouting?

ANSWER - There are different types of limestone.  The low density limestones are porous and more susceptible to staining.  Medium density limestones are less porous, and high density limestones are even less porous.   All of…

Read More
cleaning Expert Answers Maintenance Moisture Problems Physical Properties sealers Spalling stone Workmanship

Why do I now have Problems with my Limestone After it was Cleaned and Re-Sealed?

ANSWER - Refinishing or restoration of stone floors is a common maintenance process.  There are many levels and degrees of what that might involve. Typically the stone floor will be cleaned with cleaning solutions and…

Read More
Ceramic and Porcelain Tile cleaning Expert Answers installation

What is the White Material on the backs of Ceramic Porcelain Tiles?

ANSWER - The white material on the back of the tile is called engobe.  It is a ceramic pasted that is applied to the back of the tile for the firing process so the tiles do…

Read More