LET'S RESIN Silicone Mold Making Kit Liquid Silicone Rubber 140oz/1 Gallon Translucent Clear Mold Making Silicone-Mixing Ratio 1:1-Molding Silicone for Resin Molds,Silicone Molds Maker DIY Making
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Availability:
In Stock.
Arrives
Wednesday, Aug 6
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Size: 140oz
Features
- PREMIUM MOLDS MAKING SILICONE MATERIAL: Our translucent liquid silicone for mold making are platinum-cured silicone, made by safe silicone material, non-toxic and no odor, very flexible, soft and clear. You could also mix mold making silicone rubber with mica powder to create new colors
- EASY MIXING & POURING: This silicone molds making kit includes part A and part B, the mix ratio is 1:1 by weight. Pour the Part A and Part B together, then stir the silicone rubber for 5 minutes, make sure to stir the silicone rubber mixture thoroughly for better results. The working time is 5 minutes at room temperature
- NO BUBBLES: The bubbles of liquid silicone will automatically disappear within 2 hours, no vacuum degassing is necessary. The working time of making mold kit is 5 minutes at room temperature and the complete cure time is at least 6-12 hours at room temperature, it varies on your mold size and thickness. If it's s little sticky, please extend the curing time of silicone rubber
- GREAT FOR BEGINNER: If you're new to the mold making, this mold making kit is a perfect choice for you to try! No special skills or tools are needed. You could enjoy this fun and creative activity all day. HOW to CLEAN: If there's any spill, please clean with soapy water or rubbing alcohol
- WIDE APPLICATION: It's very ideal for art craft use, DIY your own resin molds, wax molds, candle molds, soap molds, use to make silicone molds for resin casting, wax, candle,soap making, etc. If you have any question with LET'S RESIN molding silicone kit, please don't hesitate to contact us
Material: Silicone
Color: Clear
Brand: LET'S RESIN
Item dimensions L x W x H: 3.94 x 3.94 x 1.97 inches
Shape: Round
Material: Silicone
Color: Clear
Brand: LET'S RESIN
Item dimensions L x W x H: 3.94 x 3.94 x 1.97 inches
Shape: Round
Number of Pieces: 1
Product Dimensions: 3.94 x 3.94 x 1.97 inches
Item Weight: 9.7 pounds
Country of Origin: China
Item model number: ALR00016
Date First Available: September 19, 2021
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Aug 6
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 20oz
I'm really happy with this brand. I was making some small molds and used a precision scale to measure the A-B amounts and was worried that I'd end up with something a little sticky as has happened to me with other brands in the past. But to my delight, three separate mold sessions were all perfect after curing. Zero stickiness. I used PLA 3D printed molds and hit them with the finest dusting of mold release spray (from a famous brand). My pieces were easy to remove with minimal effort. I find the quantity of mold compound at this price to be wonderful and I have plenty left over for some other projects. I'm not an expert at Shore hardness but the softness of this silicone matches my expectation and need based on past use of molding materials. My stretch testing of the left over mix material tells me that the durability is good too. I chose the clear formula and it is as clear as I expected. I found the working time to be generous as well and it allowed me a good 10-15 minutes of letting it gas out before I poured and many more minutes to adjust any pouring strategies or needs that I had. Good stuff!
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Reviewed in the United States on June 19, 2025 by Mark J. Koch
Size: 140oz
This is great quality silicone. Very sturdy. I’ve made 2 molds and poured them each 3 times and the results were perfect. No issues with bubbles after degassing the silicone for 5 minutes, and it cured perfectly and the molds were ready to be poured into after 2 hours. I stirred a bit of mica powder into the silicone with no negative effects. I was duplicating smooth glass pieces and the cured resin was exactly like the finish on the glass. My room temp while mixing the silicone was approximately 75 degrees Fahrenheit which is close to the 77 degree max temp recommended in the directions but I had no issues with diminished working time. I’m very pleased with this product and would recommend it.
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Reviewed in the United States on July 17, 2025 by FindPrimal
Size: 20oz
The harder had leaked a little in shipping but not enough to complain about. Double wrapped so it only got on the bottles. Easy size for granddaughter to use. Worked great for her first project
Reviewed in the United States on July 3, 2025 by NJ B NJ B
Size: 20oz
The product was easy to use and good quality
Reviewed in the United States on June 14, 2025 by Rochelle
Size: 20oz
I was looking for a silicone to make custom molds that I could later use with UV resin, and this one works perfectly. At first, I was skeptical about the first mold I made because no matter how gently I stirred the 2 parts, too many bubbles appeared! I thought it would be a disaster because I don't have a bubble-eliminating booth, but I noticed that the bubbles would start to pop on their own after letting it sit, so I slowly poured the silicone into the container where I made the mold, giving each thin layer a few minutes to release the bubbles. The instructions also recommend leaving it in the refrigerator for an hour after pouring the desired amount onto the object to help the bubbles disappear. I did it as is, and the mold came out perfect. I did the first test with a couple of heads and shoulder pads from some miniatures, and despite how tiny those were, it came out perfectly, preserving all the details.
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Reviewed in the United States on July 19, 2025 by Tatiana Tatiana
Size: 20oz
Easy to use. Perfect for refilling picky pads! Will be buying again!
Reviewed in the United States on June 2, 2025 by Colleen R
Size: 20oz
Great for making your own mold, but not a lot of it (that was my fault for not ordering the larger bottles).
Reviewed in the United States on May 20, 2025 by Jennifer Wrightson
Size: 20oz
I wanted to replicate a mold that I already own. I wanted multiple copies of the same item so I can hopefully use them for candle making. I was definitely successful in creating a mold with this. The instructions were easy to follow. I filled my original mold with hot glue and made a bunch of copies of the cactus. I then built mold cavities. One out of legos from dollar tree and one from cookie cutters. I took contact paper and put it upside down and placed the mold walls on that and applied hot glue in order to hold it down and make sure there was no leakage. I measured on a scale part an and part b. There was a ton of bubbles and that made me really nervous! However in my finished product i barely saw any bubbles. I sat there and babysat this for at least a half hour blowing through a straw at any big bubbles I saw . I messed up on the bigger mold in my pics by not gluing down the items and instead trusting that dollar tree contact paper was strong enough to hold them down! A few of my cactuses floated to the surface and will now forever be entombed in silicone! I still got a few viable mold cavities. After the first half of the bottles were gone I decided to go ahead and try a second time. This time was a disaster! Once the bottle is half empty is is damn near impossible to get part B to come out of the bottle! The bottles are hard and don’t squeeze so you have to sit there waiting for it to slowly drip out! My scale turned off several times in the process which made things even more difficult! Part B should come in a tub or squeeze tube! Eventually I went into my garage and sawed off the top of the bottle so I could get a spatula in there and scrape it out! I even tried warming the bottles like you do with a baby bottle to get it to liquify more but that didn’t do much. It did help reduce some of the bubbles but it didn’t help part B move out of the bottle. I think possible storing the bottles upside down may help with getting the remaining few ounces out but I highly suggest they change the packaging somehow. Maybe put part b in a tub so that you can get it out easier. The more fussing you do with the stuff the more bubbles you introduce. The molds came out pretty good though and I even tried one with hot glue and it worked quite well. I would love to buy more and try more but not if they don’t somehow change the packaging. This is almost a waste because it’s so hard to get the remaining few ounces out of the bottle! UPDATE: I emailed let’s resin to ask them what I can do to get rid of the sticky residue that was left over on the top and bottom surface of the mold. At first they tried to insinuate I somehow didn’t measure and/or mix it properly and so I provided them with a video of me making my molds. Once they saw the video they then sent me an email telling me that it’s because I used “hot melt glue” as a master mold. They sent along part of their instructions where it does say that there could be potential curing issues with the “hot melt glue”. I don’t see how that is possible. The glue was fully cured and hardened for over 24 hours before I used it. In the instructions it says that the part that comes in contact with the “contaminate” may not cure properly. In my case, that is the ONLY part of the mold that actually cured properly! The mold functions properly. I’ve used it to cast already. It’s just the entire rest of the mold is tacky, causing hair and dust to stick to it. I would love one of their chemists to explain how cured hot glue will effect parts of the silicone mold that it didn’t even come in contact with such as the bottom, top and side surfaces of the mold! Sounds like a bunch of BS if you ask me and a company that just doesn’t want to take responsibility for perhaps a bad batch of silicone. I see other reviews here saying the same thing about the sticky residue and they did not use “hot melt glue” for their master mold. I mean right in the instructions that they sent to me and highlighted it says that the parts that come in contact with the substance that is supposedly a contaminate, is the part that wouldn’t cure right, so how is it that the rest of the mold is sticky? Makes no sense at all! They seem to be doing all they can to avoid having to replace items! I wasn’t even asking them for a replacement! I was just asking if there’s a way to get rid of the sticky residue! I emailed different resin company about an issue I had with their product and that time it was MY error and they replaced the bottles for me for free without me even asking! That’s a company that does right by their customers. This company is trying to avoid fault at all costs! Just be wary! If you ask questions they will do whatever they can to avoid blame and make it your fault, even if it doesn’t make sense!! As you can see in my photos, the casted part that actually came in contact with the cured “hot melt glue” came out perfectly fine. It is the entire rest of the mold that’s slightly tacky.
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Reviewed in the United States on January 30, 2025 by Makeup Mobster Makeup Mobster