Rabbit and Mike, I don't see a UL, ETL, CSA, or any other listing on their web page. (maybe I missed it)
This might be cause for questioning the product.
If in fact this is 3M scotch coat, I have used it for years and it is an excellent
After you open the can it will never seal again. This is the very nature of the product, seep into every nook and cranny and seal it.
Once again, I'm the doctor of gloom. I'm sorry.