It s a pricey lesson all too many homeowners have learned the hard way and is the result of antioxidants that are added to the rubber during manufacturing to keep it from drying out.
Vinyl floor yellow under rug.
A chemical reaction often occurs between rubber backed rugs and mats and the vinyl beneath them permanently staining the floor.
The stain may not lift entirely after being cleaned the first time.
Another reason the floor can develop a lemon yellow rug stain is due to the rubber backing found on certain rugs or mats.
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Removing the yellow staining might be a tedious process but clean linoleum will brighten up.
In that case use the guide how to remove dye stains from linoleum.
If your yellow stains are caused by chlorine bleach those are actually dye stains caused by the dyes that are added to the bleach.
Mix three parts water and one part bleach in a bucket and use it to clean the stained parts of the vinyl floor.
Linoleum s base ingredient linseed oil oxidizes when exposed to light.
If the yellow discoloration is still visible on the floor after mopping try adding more bleach to the solution or mopping with the solution regularly.
This reaction brings out the true color of the floor according to armstrong flooring.
However if the floor is covered with a rug or refrigerator the area may appear yellowish.
Prevent yellow stains by using throw rugs with a nonrubber backing or rugs marked as nonstaining or colorfast alternatively save the rug for company only and leave your vinyl floor bare the rest of the time.
The staining is most likely attributed to the antioxidants that are placed into the rubber backing to help maintain the rubber s integrity.
Over time and exposure to uv and ozone rubber products can break down.
These rubber backings can also have a chemical reaction with the compounds of the vinyl flooring and create some unwanted stains.
Rubber backed throw rugs should always be avoided in sunny areas in front of windows.