www.thedriller.com/articles/91631-pdsco-bentonite-chips

PDSCo. Bentonite Chips
September 16, 2019
PDSCo.’s Bentonite Plug ⅜-inch Bentonite Chips natural sodium bentonite chips for use in sealing casings, plugging flow holes and monitoring well isolation aquifers, well decommissioning, grounding rods and geothermal wells. pdscoinc.com