Siraya Tech Fast ABS-Like 3D Printer Resin, High Precision, Non-Brittle - Low Odor 405nm UV-Curing Photopolymer for 8K LCD/DLP Printing (Navy Grey, 2kg)

I'm in the middle of an engineering project (basically a custom RC plane), and needed some small, precise parts that still need to take decently significant loads. Of course print quality and resolution is a more a matter of what printer you have, but I can say this stuff printed fantastically on my Photon Mono S with the settings recommended by Siraya Tech (you can find a spreadsheet on their website). The parts that I got are incredibly strong. I know this is an ABS-like filament, but I've legitimately gotten better performance out of these than actual ABS from an FDM printer. That is most likely because printing orientation does not matter nearly as much, so the parts turn out mostly isotropic (equal strength in all directions). I'll describe some of the cases I used this for below. MY USE CASES: One of the parts was a stepper motor gear (28BYJ-48) that needed to deal with up to 0.1N*m of torque. I can tell after a lot of use, the section that meshes with the stepper pin has worn down from perfectly tight, to having maybe 3-5 degrees of slack, but it's still perfectly usable. Many of the parts require linkages between them, so I printed 5mm pins. In my case, I had to reduce the size of the pins to about 95% to avoid clearance issues, but once they were in place the pins had very little friction while still providing very tight joints. Additionally, those pins could handle a surprising amount of shear force. I tested with a 5kg weight, so statically that's about 2.5MPa, but I also drop tested with that rig, so it could have easily reached 25MPa at one point. CLEANING: Specifically regarding this resin, you have to empty and clean your vat within 2 days if you don't plan on printing again. This stuff will separate into layers in about that time and becomes harder to clean off the vat. Also, water curing has yielded good results for me. If you've never resin printed before this part is for you, otherwise move along: Cleaning the prints is quite a hassle. They come out coated in liquid uncured resin which is, in the case of this resin, definitely a nasty skin irritant and potentially toxic if ingested (most resins are). You'll need LOTS of isopropyl or denatured alcohol, at least like 2 or 3 tubs or large tupperware containers, lots of paper towels, definitely more gloves than your printer comes with, and some way to get rid of the fumes. The alcohol is smelly enough, but this resin is definitely nasty stuff to be around. You have to be very careful not to get it on your skin or other surfaces (as it is quite drippy off the printer). With this resin, I got the best results by cleaning with alcohol from a spray bottle, then rinsing in water for 30 seconds, and then submerging in a cleaner tub of water before leaving in the sun (for 45 minutes) or shining with a bright UV light (1 minute or more, flipping the part with tweezers). I tend to keep one tupperware container for the alcohol cleaning process, which is very thick with uncured resin, one container for dirty rinse water, and one for clean water (and a bonus extra container to place all my contaminated tools and paper towels). I can usually run with this setup for several prints without changing out the liquids, which is nice because you CANNOT wash this stuff down the drain (unless you want even more micro-plastics in the ocean), and it absolutely has to be cured before you dispose of it. I typically save my 2-liter bottles and old mouthwash bottles, dump everything into those, and leave them out in the sun for a day before putting in the trash. CONCLUSION: If you can deal with the hassle of cleaning and PROPERLY discarding of the waste, then this resin produces results that you simply cannot get with other printing methods. Sure, FDM printing is less toxic and usually easier to get larger prints with, but the precision and speed of resin printing is unmatched. Usually that comes at the cost of poor physical proteries, but with this resin, you can get really small, precise parts with fantastic physical properties.

Quite literally the best resin I've used for printing miniatures. High detail, keeps a good form, doesn't change color too much after curing, and grinds well for bonding parts. It's solid grey, there is no color variation and it is very dense. It is however, very brittle and even the slightest drops can, and will, snap pieces off of the print.

I've ordered this item numerous times, and it never fails to impress me. The quality is spot on, the prints hardly fail. My only Gripe would be that some of the smaller parts are a tad brittle, but overall they stand up pretty well. Will continue to order this product for all my printing needs!

Fantastic reliable, high-quality resin with great detail, never any printing issues now that I have my printer dialled in and the temperature set

This is a great printing resin and the color is awesome. Not fully transparent but looks great and holds up well

This resin works great, gives great detail and holds up really well in the tough department. My only negative would be the price, it is a premium product and the price reflects that; though there are cheaper options (few) that will give you similar or better results.

This stuff is great. I'm using the "Fast" grey. I've printed at least 10Kg of the resin through GK3 ultras with zero failures due to the resin! Feels durable, but i have not actually stress tested it at all.

Siraya Tech Fast Smokey Black resin has become a reliable and dependable choice for many users, thanks to its impressive array of features. Known for its durability and flexibility, this product offers clean and smooth results for a wide range of 3D printing applications. In addition, users appreciate the minimal odor, making it an excellent option for those with heightened sensitivity to strong smells. The resin's robustness, combined with its slight flexibility, allows users to create intricate and complex designs without the fear of breakage. This makes it an ideal choice for both hobbyists and professionals alike. Furthermore, the Fast Smokey Black resin boasts a consistent performance, ensuring that users can expect the same level of quality from batch to batch. In conclusion, Siraya Tech Fast Smokey Black resin has proven itself to be a top contender in the 3D printing market. Its durability, flexibility, and minimal odor set it apart from other products in the field. As a result, it remains a go-to option for many satisfied customers who are looking for consistent quality and excellent results in their 3D printing endeavors.