I've just mixed up some CMC and warm water... Its thickened up but its lumpy.. Anyone know why?
Give it ten minutes. If it's not pretty smooth by then, add a bit more water.
Its all good now, looking like wallpaper paste. LOL Thanks :)
Its always best made the night before, i assure you it will be nice and smooth tomorrow. :)!
You can still use it immediately, even if it's lumpy.