Siraya TechTenacious Easy Grey 3D Printer Resin, Flexible 405nm UV-Curing Resin with High Impact Resistance and High Toughness, for DLP SLA 3D Printer 1kg

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.

Just bought this clear resin and I’m really disappointed by its shore hardness. I’ve printed both Obsidian Black and the softer Flex Black and was impressed by both of those. The clear resin is almost solid. I’m wondering if I got a dodgy batch.

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It wasn't obvious to me that the Easy Grey Tenacious has different properties and cure times than the other Tenacious colors, because they're all sold under the name "Tenacious." I wish it were stated clearly, because I wasted quite a bit of resin trying to troubleshoot. I had read so many reviews about people mixing Siraya's Tenacious with their Fast resin (or other brand resins), so I was confused that adding Tenacious Easy Grey to my Fast resin didn't make any difference in durability. I decided to try printing with just the Easy Grey (not mixing it with any other resin) and followed the curing guide for Tenacious on Siraya's site... which says to cure Tenacious prints for 25 minutes (!). That seemed crazy to me, but I prefer to test manufacturer guidelines before experimenting. There was no alternative cure time for the Easy Grey. Unsurprisingly, the prints were extremely brittle and broke with the tiniest bit of pressure. I E-mailed Siraya about it and they said:"First, Tenacious Easy Grey is not exactly the same as Tenacious Clear. It is easier to print and has excellent flexibility compared to standard model resins. But it is not more flexible and stronger than Tenacious Clear.Second, Tenacious Easy Grey is engineered for high impact resistance, ensuring models are both flexible and durable, so you don't need to mix it with Fast Grey because it has better mechanical properties.For the issue you mentioned, you can try to reduce the curing time to 10 minutes because the smaller model requires less curing time. If the curing time is too long, it will get hard."I don't understand why Siraya doesn't clearly outline the different properties and cure times between the different Tenacious colors. Or just market the Easy Grey as its own line. It would be very easy for them to clarify it up front, and it would save their customers money and frustration.

Es una resina negra pero muy traslúcida,su uso principal era para hacer llantas 1:64 las cuales salen muy transparentes, si la quieres para eso mejor compra otra resina, al lavar las impresiones no debes dejarlas más de 5 minutos en el alcohol, lo absorbe muy rápido y se quiebran las piezas, el empaque no tiene un parámetro de exposición aproximado y su soporte técnico no es muy bueno.

Usato come additivo, consigliato direttamente dall’azienda produttrice, non ha nessun effetto elasticizzante anzi, aumenta l’igeoscopia e rende il pezzo appiccicoso.

Muy cara, pero mezclandola con otras resinas (10-12% de esta, el resto resina normal), mejora flexibilidad y resistencia sin afectar los detalles de forma evidente