Siraya Tech Tenacious 3D Printer Resin Flexible 405nm UV-Curing Resin with High Impact Resistance Standard Photopolymer Resin for LCD DLP 3D Printing (1000g, Clear)

I ordered this resin for its flexibility but I found that is not flexible. It is tough but with very low flexibility.

I wanted a flexible resin to solve a problem. Boy, is this flexible. Press it hard and it flexes. It does take a while to recover if the part has thick walls, but it does recover. I tested its strength by whacking it hard, repeatedly, with a hammer, and I am sure I could hear it just laugh. I couldn't break it. Then I printed the part with walls 0.4mm thick and squeezed it and flexed it. It took quite an effort to get one wall to crack, so I'm happy that it is both flexible and durable. It is not straightforward getting the printed part off the build plate. I use a flexible plate, but when I flex the plate, the printed part just flexes too. Reach for the very sharp spatula. Pity about the price. Pity the Black colour is not readily available. I found the 'clear' cures with a slightly yellow tint (as stated by the manufacturer). I recommend this resin if you need some flexibility and resilience.