BobsDadBod

I purchased through the website as a '65ft narrow boat blacking kit' because the 50ft wouldn't have had enough, so I was expecting some left over anyway. I made up and mixed small amounts as I was going. Confident the water line and below has plenty thick enough coats on at least for the initially. I'd struggle to say for 2nd and 3rd coat as painting black on black. I don't feel like I was stingy with the epoxy and every where was coated. Expiry is 2 yrs. I considered this but wasn't sure I'd be able to prepare to the necessary standard, I'll be able to jet wash, but am unable to get under to fully sand down to bare steel. Do you think would still be worthwhile using even if just roughly prepared?

This is my first time DIY blacking my 55ft narrow boat. I'd previously had bitumen based blacking applied (much longer ago than should have been). After plenty of research I found a SML 2pack that boats the ability to go over bitumen. (https://www.smlmarinepaints.co.uk/primers/two-pack/Ballastic_Epoxy) Have prepped and blacked. 3 coats from just above water line to base plate, 2 coats above water line to gunwale. I have an entire unused tin that's sealed and as new, just wondering whether additional coats of 2-pack is beneficial to longevity of the blacking or to try and return/sell the unused can. I'm not bothered about chalking and will not be covering with a top coat - I do plan on jet washing the base plate and applying standard bitumen to the baseplate - though I understand there's mixed opinions on this.