phrozen Aqua-Gray 4K Resin for High-Precision 3D Printing,405nm LCD UV-Curing Photopolymer Resin for Low Shrinkage, Great Detail, Low Odor, Non-Brittle (1KG)

I’m new to resin printing, but in the past 2 weeks I’ve tried both the Anycubic Eco Resin and this Phrozen Aqua-Gray 4K. The Anycubic Eco has been much better both in terms of build quality and smell. This Phrozen resin is very smelly to me. I’m sure it’d be fine for those that have good ventilation, but it was terrible for me as I only have one small window to vent my space. I’m not sure how this qualifies as “low odor” but I’d very much recommend using only in very well ventilated area and possibly even a respirator. The build quality was fine, but I actually got better prints with the Anycubic Eco resin. The Phrozen came out brittle. This very well could be my print settings as I’m using Chitubox’s default profile for this resin with my Phrozen Sonic mini 4K and I had to create my own profile for the Anycubic Eco (0.05mm layers, 9 second exposure, 60 second base layer exposure, 8 base layers). Lastly, it’s much cheaper buying directly from Phrozen. Not sure why Amazon tacks on an extra $10/kg. Overall, it was definitely usable, but it seems like there are better products out there in the market.

Holds the details for the smaller prints. Little shrinkage for the large multi-piece prints. I pay the extra couple of dollars for this resin over others Ive tried for its reliability, quality and ease of use. Would recommend. Just make sure to leave enough for me.

Used in a sonic mighty 4K Chitubox included resin profile works without modification. Prints are clean. Vat life seems good, part isnt as horribly brittle as some other grey resins. Would buy again.

My son uses this for his 3D printer. Loved getting it!

I used to avoid Phrozen resins completely (I got a few with the printers and then a few more when they ran a sale on Amazon, and they all came in leaky bottles and they required massive supports). I avoided them for several years. Then I got Mini 8K with a bottle of their 8K resin, and the new bottle doesnt leak (and the seal is excellent) and it was very easy to print. So I tried the 4K resin. Its very similar to the 8K resin, slightly slower, marginally lower resolution that you can only notice with a small 8K printer. It has excellent printability and is easy to clean. After the IPA bath, its not tacky at all. I wave a UV light over it to cure any remaining wet spots and its done. I dont do the regular all-around curing on it, and it stays slightly flexible! Its actually hard to break, it will bend to the point that it doesnt recover the original shape, but it still wont break (you need to varnish or prime it, or it will keep curing and getting harder and more brittle). Even better, I found that it does not need to be primed: acrylic paints stick to it just fine, including contrasts and washes. The ivory resin has a pleasant color to serve as a base, and the grey resin can be used as-is in the shadows if you do zenithal priming with white.

Works very well. All prints have been perfect so far. Definitely will get it again when I need more resin.

Excellent results. Once cured, holds paint great.

Delivery was much faster than expected. Good quality printing resin. Will buy again.

I think this resin produces small details slightly better than the non-4K resins like the Aqua Green. Ive been using this resin with my Sonic Mini 4K for awhile now and its amazing. Great detail and cures quickly. Will keep buying this as long as the price remains competitive.

This is easily my favorite resin. Works great with stock settings in my slicer. Prints great detail !!! For minis ... this is my favorite resin !!! I actually mix this with Aqua Green and it’s a bit less brittle. I’ve been having great success with both the grey and the green !