dont bother wasting your money on the paste just use ceelon tape when putting on use a junior hacksaw to scratch the thread(drag the blade down the thread to roughen the thread) this helps so when you the screw the fitting on it wont wind the tape down the thread, when putting on tape always start at end of thread and work back, dont use hemp it seals a lot better than ceelon tape but cant be used on plastic when hemp gets wet it sweels up to stop the leak so with plastic fitting it crushes and cracks the fitting