"The flux works really well but a little different to what I’m used to. It has the consistency of gritty tomato ketchup, only in white. What I really dislike is the tub it comes in. It’s one of those containers that no matter how careful you are, you will have some of the contents oozing out from under the lid as you screw it back on. For the price, I would expect better, especially from Fernox."