JH, the stuff I meant is definitely NOT what you've shown us. Yours probably is way more friendly to the DNA than what I use -- mine comes in a quart metal can that's covered with warnings and bright red lettering! I'll have to find some like you use and see. I don't have a can here at the house -- maybe will shoot a photo and send it to you tomorrow, just for the reference of it.
And about blue -- well, a couple of years ago Nancy gave me a roll of duct tape for the bike, labelled it "200 mph tape", and sure enough, it was blue. Blue's good. Just ask Bobby Vinton.