Unfortunately there can be a great deal of confusion about carpet protectors in our industry. Untrained and sometimes downright unscrupulous carpet cleaners give out false information. In the worst cases, intentionally misrepresent the product.
WARNING: The protector that “was” in your carpet may be GONE and leaving you EXPOSED!!
A nylon stain-resist carpet is made with a few protective properties:
The first is an acid dye blocker that is basically a clear dye that fills the extra dye sites in a light colored fiber. This helps to keep “foreign” dyes (such as red acid dye in a beverage) from penetrating the carpet fiber sense the extra dye sites are already full of clear dye.
The second property is called a “fluorochemical.” It is commonly known as 3M Scotchgard or DuPont Teflon. This treatment helps keep spillage from actually getting to the acid dye blocker, but its biggest job is to resist dry soil.
By resisting dry soil because of the application of carpet protector, less soil bonds to the carpet, therefore it is picked up by your vacuum much more efficiently. Making sure that you have a sufficient amount of carpet protector on your carpet will help keep the soil from bonding to the carpet. Once soil bonds to the carpet, it acts like sandpaper on your traffic area, pivot areas, as at a hall doorway, being the worst. Once the traffic area yarns are scratched and broken down, there is no way to bring them back to their original state.