06-10-2015, 07:59 PM
Shorty makes a good point that many of the older jute backings will invariably cause browning. It's called cellulosic browning. That's because the jute is made from plant material (i.e. cellulosic matter). And that will clearly turn brown. And it's true that we don't have a lot of jute backing in the USA anymore. But jute is not the only cause of browning... Dirt also contains a lot of cellulosic debris. And water has mineral content that adds to the cellulosic debris. Voila we have browning. A brownish colored water stain is very common on carpet that has no jute backing. Encap-HydrOx kicks that browning, as well as all other browning, to the curb. 