Stainmaster Carpet - What is it?
Stainmaster® Carpet is no longer owned by DuPont but by Lowe’s and is no longer nylon
STAINMASTER brand stain-resistant nylon was introduced in 1986 by DuPont® and later sold to Invista®. The Stainmaster brand is now owned by Lowe’s. While Stainmaster has always been the most recognized carpet brand in the country, Lowe’s no longer just applies it to stain-resistant 6,6 nylon, but now applies it to several fibers that are also stain-resistant and even to some sheet vinyl flooring.
Stainmaster used to be a 6,6 nylon fiber which was treated with an acid dye blocker to make it fiber more resistant to staining by acid dyes, such as those in soft drinks and other beverages containing acid dyes.
Stain resist nylon is a nylon fiber which has been treated with an acid dye blocker to make it fiber more resistant to staining by acid dyes, such as those in soft drinks and other beverages containing acid dyes such as Kool-Aid. A carpet protector, such as Scotchgard® Carpet and Upholstery Protector or Teflon® Advanced Carpet Protector, is often applied to the carpet after dyeing. After dyeing, the stain release chemistry is applied in thick foam that penetrates from the top and from below the carpet, so it is protected from most common household spills. In the real world, with traffic, soiling, and cleaning, stain resistance gradually decreases. As a result, it is best to apply fluorochemical carpet protector on stain-resist nylon carpet after every cleaning.

