I have purchased four or five of these containers. EVERY one of them has gone hard and dry in spite of properly sealing the container after use. I contacted the manufacturer to complain about the early and quick demise of their product and request a replacement. They refused. They told me to contact the selling store for a free replacement and that the mfg has a replacement agreement in place with retailers. The manager of Ace Hardware innitially told me he has never heard of such agreement. Ace however DID exchange the can for me at no charge. The manufacturer also told me that the container is a "TEMPORARY CONTAINER" !!! They advised me to transfer remaining product into an air tight container! It is a little too late for that now it appears. I'd ONLY buy this product if I intended to use it ALL in one day. It works fine when the can is first opened.