Defoul is basically bio diesel with some alcohol and emulsifier
Not withstanding that it may be a great product, you don't get something for nothing. There is always a lot more work involved than what is shown on the videos, even using the most evil strippers it's a very messy business.
I see it retails for 660 in Oz, 19 L which is enough for a 30 foot boat, add on the New Zealand tax and markups....
The easiest way by far is to get somebody to soda blast it, the next easiest is to get a team of students or your crew with scrapers. Scraping is the best way to get it off as oppos