I bought this for use in filling seams in a 3d resin print. The product worked great despite having a sickly yellow-gray color once cured. This wasn't an issue however, as it was painted over. I was able to fill all seams and smooth it out with a rubber spatula. It sanded down easy enough leaving me with a smooth, seamless surface. The resealable syringes are a great touch, as a little goes a very long way. My only gripe with the product is the nozzles. As convenient as the mixing nozzle is, they are obviously single use, and depending on environmental factors, the resin can begin drying inside quite quickly. Additionally, I found I had to extrude a fair amount before I got a good mix, as the two part liquids have different viscosities. Overall, an excellent product that did exactly what I needed it to do. I will happily purchase additional nozzles to continue using this in the future.