I was one of the original purchasers of this product, years ago. Maybe they hadn't tweaked the formula at the start, but it did/does NOT work as described. I used the liquid bonding material over many different types of material and surfaces, used the UV light for much longer than they said it required. Yet, no-go. No long term "bonding". There is nothing that I have used this on - that is still together. It works very poorly. Very sad. I was very excited when I saw this product, that's why I purchased it early on. I am constantly needing something like this! Well, very disappointed early adopter. Epoxy still works much better. Actually, most glues work better. Sorry to say, yet I wouldn't sink a lot of money or hope in this product.