Siraya Tech Defiant 25 Platinum Silicone Mold Making Kit,Clear, 35.3 Oz

I went from idea to finished product in about 5 hours using this silicone! I was VERY skeptical that this would work without any inhibition, but there were absolutely no uncured spots in my molds at all when they were done (I used Siraya Tech "Fast" Navy Grey resin for the original). I poured about 1/4th of an inch of silicone for these small molds, and they were cured within AN HOUR. Literally the only negative I have is that I struggled to get all the bubbles out of these detailed molds - specifically talking about the spots where bubbles formed on my resin original due to surface tension, not the floating bubbles in the silicone - and the silicone was too thick to get them out by tapping the mold box or poking them with a toothpick. That's true of a lot of silicones I've tried though, and the pros waaaay outweigh the cons here. Best of all, the molds come out clear enough that you can use UV resin in them. Very excited about what I'll be able to do with this material!

Works brilliantly. Takes mica pigment well and the self degassing is effective. Used for a few different projects now and it is quite durable when demolding/removing from form and is a good mix between stiffness and flexibility in general. Sets quickly while still allowing a good working time and gentle tapping/vibration should help any bubbles fully escape. Seems to handle small amounts of UV resin just fine although if you are casting a resin print I would recommend a topcoat just to be safe. Mixes well and cleans up just fine I should note too.

Great results. Thin enough consistency when pouring that it was Bubble-free. Firmed up within 6 hours, left overnight for extra curing time and had a clean release. Perfect result.

Used to mold food utensils and it works perfect!

I have never made a silicone mold before now but I have zero complaints! My first try went badly but that was my fault — I didn’t realize that my clay had sulfur in it, which inhibited curing in the contact layer of silicone. Second try was perfect. Seems very easy to mix correctly. The finished mold feels durable, especially compared to a some premade molds I have bought in the past, but still captures tiny details. Curing time was surprisingly quick!! I waited 4-6 hours like the website says and it was totally cured. I will probably buy this brand again if I run out.

Was exactly what I needed and did the job.

Okay so my second time trying to write this review is for some reason Amazon itself crashed on my mobile device. The material when compared directly against an off-the-shelf silicone fared better. The off-the-shelf silicone being cheaper and more plentiful had a far harder time being removed from the test object. Now unfortunately given the cost of this material I've not done much testing with it as much as I would like to. Because to do a lot of good testing I need a rather large substantial source of it. And in casting you're going to use a good quantity. Unfortunately what you get in the containers is enough for maybe 2 good casts. So quantity versus cost is not in line with what I would like. That's not necessarily A fault of the product itself it's just that I would like to see the company offer a larger container of this stuff. Without you know a crazy hiking cost. Now the primary thing that I didn't like about this material and it goes as an unresolved issue. Was of the two times that I have used it in testing the very first time it took several days for it to cure and I'm not really quite sure why. I don't believe the substance requires a UV light here. The second time I did expose it to UV just in case. But I do not know that that had anything to do with it. I'm assuming it has something to do with external ambient temperature and exposure to atmosphere. But the second time that I used it I had better results and it did you overnight. I hope to get more casting in in the future and to be able to return better results and even perhaps a warning if possible to those who want to use it regarding specifics of what is necessary to get a Best use cure time.

Best platinum silicone I've ever used (which compares to a LOT of brand). 1) THIN. When they say self-degassing, they mean it. This is the lowest vicosity silicone I've seen, probably lower viscosity than the resin. I still vacuumed (keep in mind its a lower work time) and this stuff had already fully degassed before chamber even reached 1psi~ and only expanded 50%. Nearly as fast as watching boil. 2) No cure inhibition just as advertised. Treated the parts as specified (which is normal process) and had no inhibition, even in the tiny recesses/overhangs that usually as the nightmares (less UV post curing perhaps) 3) The low viscosity also helped pouring a very cleanly. The downsides i could find, were the shore level and the lack of bulk options. Shore 25 is a bit stiff for my needs. Maybe after this is a overwhelming success, alternate shores or a thinning agent will be made available. Gallon units or larger please. 2x5kg jugs would be sufficient.

Está muy bien una vez que le coges el truco. Cuesta un poco

I picked up the Siraya Tech Defiant 25 Platinum Silicone kit to make dice molds for my resin projects, and honestly, I was impressed from start to finish. I’ve tried a few different silicones over the years, but this one stood out for a couple of reasons. Easy Mold Making, Even for First-Timers Mixing the silicone parts was genuinely straightforward—just combine, mix thoroughly, and pour. I wasn’t worried about missing the pot life or it getting too thick way too fast. What really sold me was how smoothly it flowed around my dice masters and settled into all the small details. If you’re worried about bubbles or fine print not coming out, don’t be; the results were crisp. No Curing Headaches One of the frustrations with making molds using 3D printed pieces is the risk of curing inhibition, but this silicone just worked. I didn’t need to coat my models or do anything special; it cured perfectly next to my UV resin prints—no sticky spots or half-cured messes. Awesome for Dice The 25A hardness is just right—it holds its shape but doesn’t feel like a brick when you’re demolding. My finished dice popped out cleanly, and the molds have lasted through a few sets without stretching or tearing. The translucency of the cured silicone also made it easy to check for air bubbles before the mix set up, which saved me from having to remake molds. Works Seamlessly With Siraya Tech Fast Navy Grey Resin A huge bonus for me has been using these molds with the Siraya Tech 2kg Fast Navy Grey resin. The silicone and resin work together perfectly—no curing issues, and the detail from the mold comes through clearly in the final casts. The Fast Navy Grey resin cures reliably in these molds without sticking or leaving any residues, so every dice pour came out crisp and clean. Great Value & Size The amount in the kit is generous, and I got several dice molds out of one batch with some left over. For anyone making custom dice, the kit’s size and ease of use make it a practical, reliable choice. Would I Recommend It? Absolutely. If you want an easy mold-making experience—especially for detailed work like dice or resin crafts with popular resins like the Siraya Tech Fast Navy Grey—I’d say give the Siraya Tech Defiant 25 a shot. It took the stress out of the process and gave me professional-looking results with less prep and cleanup.

3Dプリンタで成形したものを、大量生産と考え、シリコンモールドを初めて作りました。扱いやすく、とても簡単に作れました。リピートしてます。

DECIDED TO GIVE THIS A TRY SINCE I USE THEIR FAST RESIN FOR PRINTING. THE SILICONE MIXED WELL AND WAS EASY TO POUR. NO INHIBITION PROBLEMS WHEN CURING. A STRONG 25A SEMI TRANSPERENT SILICONE. GREAT DETAIL.

Ottima funziona molto bene