Using this product, our team found that it worked exceptionally well for our industrial and scientific needs. The glue stuck quickly and held strong, and the waterproof and scratchproof properties made it long-lasting. The glue worked on a variety of surfaces and was easy to apply. However, the only con we found was the price was a bit higher than other standard hot glue sticks in the market. Overall, we highly recommend this product for any tough adhesive needs.