Wyandotte, Michigan - BASF Corp. said 24 March that it has gained approval to the internationally recognised National Sanitation Foundation's (NSF) Standard 61 for its Elastollan ET 3685-11 TPU (thermoplastic polyurethane) adhesive for CIPP (cured-in-place pipe) applications for trenchless infrastructure repairs.
The innovation, "will open the doors for liner manufacturers to develop new concepts for new products," said Luc Lupien, senior market development specialist, Polyurethanes, at BASF. "The approval by the NSF for potable water applications reinforces BASF Polyurethanes' commitment to this industry as we continue to work on new developments and product innovations," Lupien added.
BASF also pointed out that it was the first supplier whose thermoplastic polyurethanes met the NSF Standard 61 for its Elastollan TPU for CIPP uses.
Elastollan adhesive is used in potable water CIPP construction to assemble the product in situ. Benefits include low activation temperatures (145° Celsius and 293° Fahrenheit) and excellent flexibility at low temperatures.