Project: 2008 Olympic Horse Competition Lagoon, HK Jockey Club

 

Bentofix, the original needle-punched membrane for waterproofing, consists of a continuous layer of natural sodium bentonite, nonwoven geotextile and a slit film woven geotextile. The components are needle-punched uniformly together across the entire membrane. A second layer of bentonite is impregnated into the nonwoven component to facilitate impermeable overlap joints. 

 

Bentofix uses powdered natural sodium bentonite reacts immediately to the presence of water, drastically reducing the activation time of the bentonite. This means an immediate waterproofing ability.