What Causes Blue Green Stain On Granite

In rare cases stains can arise on the surface of newly installed granite marble countertops.

What causes blue green stain on granite.

The porous granite soaks colors and dyes often resulting in stains after lots of use or exposure to some fluids or objects such as oil based cosmetics food colored drinks and metal objects. What causes blooming is the chemical ch glue chip repair kit that is used to repair natural stone. Well certainly other things could cause a stain however this type of green stain in marble or granite countertops specifically occurs at the time of install and does result from use of certain types of glues and curing accelerators. Blooming is common in light color granites.

If you re not certain what caused the stain consider its size shape and location to give you clues. Food and beverage spills especially that of greasy foods and cooking oils can stain a granite surface over time. Water quality and even improper electrical grounding hasten corrosion adding excessive amounts of dissolved copper to the water coming out of fixtures. The accelerator of this chemical reacts with the stone causing the area to turn green.

What is the cause of green bloom. The exact cause is not identified and occurrence is unpredictable however it is thought to result from a chemical reaction involving certain elements within the stone and activators or accelerants used along with the adhesive for gluing the slab to cabinets or used within seams. The accelerator of this chemical reacts with the stone causing the area to turn green. Metal stains will appear if you have left out metal containers on your granite countertop and rusting occurs.

Known as green bloom or blue blossom or california blossom these stains are. What causes blooming is the chemical ch glue chip repair kit that is used to repair natural stone. Zinc and is caused by the corrosion and dissolution of the metal itself. Start by determining the source of the stain.

Here are the steps. Blue or green staining occurs exclusively with copper pipe and fittings including brass which is copper plus. Blooming is common in light color granites. When water seeps into your granite countertop it leaves a dark spot that evaporates in a few minutes and returns to normal.

It is common that these green discolorations appear on the stone within a few weeks after the installation. It is common that these green discolorations appear on the stone within a few weeks after the installation. But substances like cooking oils that don t evaporate can cause permanent stains if they re allowed to soak into the stone. All granite species are porous and their porosity varies from granite species to species.