I have used this product over the past two months with outstanding results. Please note that there is a sheet of instruction in the package that provides information use of the products.
I repaired a broken pair of glasses where the plastic rim around the lens was broken in two places by applying a bead of glue between the plastic lens and plastic rim.
I had a marble chess piece that had been dropped by the small hands of my grand daughter and broke. From the instructions, I learned that the glue not exposed to the UV light will adhere within 24 hours. I coated the broken interior surface, which would not be exposed to the UV light, then matched the two surfaces together and applied a bead of glue around the circumference of the crack and exposed to the UV light. Marvelously strong repair!
I have a wireless mouse that I have had for 15+ years which slides on three plastic pads which had come off. I had used super glue to glue thin pieces of plastic to repair with less than satisfactory results. I used three drops of glue and after exposing the drops to the UV light, I filed the glue down to equal and proper height and the mouse works like new.
It was also used for automotive weather stripping.
Given previous experience with the limited shelf life of super glue after opening, I was concerned about this products shelf life after first use. The product was opened two months ago and there has been no apparent degradation of the products properties or usefulness.
An outstanding product, well designed and replacement for super glue. Read and understand the instructions.