Cybergold is a UK company specialising in products to stop you rugs from sliping (www.cybergolduk.com)
Designed to stop rugs and mats of all kinds from moving. It is simply applied by spraying the back of the rug. When dry the there is no visible trace of any residue. You can also lift the rug and reposition it without any problems. One great feature is that it still works perfectly when the rug has been washed.
1 bottle covers up to 8sqm