The substrate couldn't be more perfect for biofilm formation, acres of microscopic refugia that will make organisms comprising it effectively impossible to kill.
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HAHAHAhaha! they're making the world's biggest synthetic scum pond!!!
The coating is a polyurea used inside pipes. It gels in about 3 seconds, making it non self-leveling. The texture is like an orange peel, the perfect substrate for biofilms.
www.nytimes.com/2026/05/19/u...