Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Totally Useless - Try Something Else

I tried this product on a simple loose cap despite many poor reviews. I should have paid attention. This stuff is useless. I am an engineer with over 40 years of experience, including the use of adhesives. I followed the preparation and application directions flawlessly. I even kept pressure on for an hour (very uncomfortable). The crown fell off immediately after. Save yourself some grief and a little money and use something else.