I've seen this video and looked at the stuff on Amazon. Looks like an amazingly versatile bit of gloop for anyone that needs to bodge things from time to time. A bag of it is pretty cheap on Amazon as well. There are a few different brands, and some that come with pigments as well.
Moderator, Treatment Free Beekeepers group on Facebook.
Opportunity is missed by most people because it is dressed in overalls and looks like work - Edison. Tiny ad: