RESIONE F69 Flexible 3D Printer Resin, 405nm UV-Curing DLP LCD MSLA Resin Rubber Like TPU Like Photopolymer Resin for LCD Printing (Black 500g)

This stuff is a bit on the expensive site as resins go, but worth it for the functionality.I use this for two things:1. 3D printing flexible parts - Prints very well, with high amount of detail with flexible results.2. Dipping and coating parts for a slightly tacky seal (I 3D printed some vaccume cleaner parts that needed a rubber seal. Just dipping the end in this SLA and hitting it with the UV curing lamp makes adding a rubber washer unnecessary. The slightly tacky nature of this material when it's clean and glossy makes it ideal for this, as it provides a significantly higher amount of flexible friction and makes an air-tight seal on the parts for maximum suction.I've given it 5 stars for value for money, because it's simply magical stuff. Sand it down for non-tacky finish. Leave it glossy for added friction.

I bought this resin as a trial to print some tyres that had to be flexible enough to stretch over the rims of some wheels, but no so soft that they would come of again. After a couple of experiments they printed accurately and came away from the supports with ease.

I have been reviewing a number of different resins recently since getting my Elegoo Mars II Mono printer and was really interested to see the F69 flexible resin.I normally print miniatures which works best with traditional rigid resin, however, was curious to see how this would perform and what uses I could put it to.I also have some F80 and K resins, also by RESIONE, so will be comparing them to a degree.The resin itself is more viscous than a "normal" resin (in the middle of F80 and K), so a light off delay is needed to let the goop settle between layers.Once printed, F69 is in the middle ground of the three in terms of flexibility. Details are a little softer than K, but still holds well and it cleans well with IPA and Ethanol.Flexes like vulcanised rubber under force, and takes a bit of time to return to original shape (6 seconds on XP2 test when folded in half). Still very sturdy if more than a few mm thick.

I wanted to print some scale truck tyres. I have a good working knowledge of printing in general.Unfortunately, I was unable to get a single satisfactory print from this product, despite using the recommended settings. I have tried various layouts, (laying flat, upright and angles between), room temperatures from 28 to 38 degrees, timer settings, from exposure times as well as delay lift, etc, without success.I am afraid this product is not for me and I can't afford to experiment further at this price.

I've been desperate to try flexi resin since I first heard about it so I was delighted to see F69 pop up on amazon.I print a lot of stuff for drones, and it's usually TPU bumpers, canopies and holders printed on a traditional FDM printer. The problem with that is that it's comparatively ugly to the fine detail and smoothness of a resin print.So, I set about testing this resin and at 100% F69 (no mixing) the final print was slightly deformed and was missing some pieces, but was ultra flexible. I could easily squash it flat and it would (over time) return to it's original shape.I decided to mix 60% Resione K and 40% F69 and that gave me the results I was looking for. A solid, tough, well detailed print with a bit of flex and return to shape. Ideal for my uses.Only deducted a point because:a) the manfacturers settings for ChituBox resulted in a total print failure - doing the same in Lychee worked fineb) it has a VERY strong odour. One of the stinkiest resins I've used and it lingers.Otherwise it's excellent stuff and I will be buying more when I run out.