It had not occurred to me that yucca extract could be used as a wetter/sticker. We have been making our own extract for a couple of years. We originally did the extract as yucca is a selenium accumulator and our soils are naturally low in selenium. We noticed in the manufacturing process that there was definitely a healthy saponin content.

On looking up ThermX-70 I see that it is recommended for use in saline situations, which we have, so we have another use for the extract. We are actually in the process of doing another 2,000 litres.