What Causes Blue Green Stain On Granite

These stains appear reddish brown in color sometimes they might be green as well.

What causes blue green stain on granite.

Hair dyes colored toiletries paint and stain pigments the colorants contained in chemicals when spilled on granite will seep into the granite s pores and discolor the surface. When water seeps into your granite countertop it leaves a dark spot that evaporates in a few minutes and returns to normal. Blooming is common in light color granites. Zinc and is caused by the corrosion and dissolution of the metal itself.

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. All granite species are porous and their porosity varies from granite species to species. Known as green bloom or blue blossom or california blossom these stains are. The accelerator of this chemical reacts with the stone causing the area to turn green.

Here are the steps. Food and beverage spills especially that of greasy foods and cooking oils can stain a granite surface over time. Blue or green staining occurs exclusively with copper pipe and fittings including brass which is copper plus. It is common that these green discolorations appear on the stone within a few weeks after the installation.

What causes blooming is the chemical ch glue chip repair kit that is used to repair natural stone. The accelerator of this chemical reacts with the stone causing the area to turn green. 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. Metal stains will require the same poultice method that we used in the removal of organic stains.

Water quality and even improper electrical grounding hasten corrosion adding excessive amounts of dissolved copper to the water coming out of fixtures. Metal stains will appear if you have left out metal containers on your granite countertop and rusting occurs. Start by determining the source of the stain. 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.

What causes blooming is the chemical ch glue chip repair kit that is used to repair natural stone. It is common that these green discolorations appear on the stone within a few weeks after the installation. In rare cases stains can arise on the surface of newly installed granite marble countertops. But substances like cooking oils that don t evaporate can cause permanent stains if they re allowed to soak into the stone.