This is a crystal clear and strong flux. Yes, as expected, but it makes a wonderful Flux Clear Liquid, Clear Gel Flux or even Flux Paste. I got the idea from a Russian electronics enthusiast who said it was the best he's ever used in his 30 years on the bench and I love it too. It can do a lot, so do it as you need to. If you shave it out of the container, it will dissolve faster. I refer you to YouTube for the formula thickness. Good soldering.