Most Karastan rugs are made of wool, so they are naturally stain resistant and do not require additional preventative treatments. In our "Making of a Karastan" section, you'll find several different types of wash treatments that are applied to Karastan rugs after they are woven. Those include our Luster Wash technique, our Tea and Antique Washes and our Sultan's Slipper process. These patented treatments give Karastan rugs a look and feel that differentiates Karastan rugs from other hand-made and machine-made products available in the market today.