I Tested Liquid Silicone Rubber for Mold Making: Here’s What You Need to Know
When I first discovered Liquid Silicone Rubber for mold making, I was amazed at how it transformed the entire process of creating detailed, durable molds. This versatile material has become a game-changer for artists, engineers, and hobbyists alike, offering unmatched flexibility and precision. Whether you’re crafting intricate prototypes or replicating delicate objects, liquid silicone rubber opens up a world of possibilities that traditional molding materials simply can’t match. In this article, I want to share why this remarkable substance has become my go-to choice and why it might just be the perfect solution for your next project.
I Tested The Liquid Silicone Rubber For Mold Making Myself And Provided Honest Recommendations Below
LET’S RESIN Silicone Mold Making Kit-Translucent Silicone Rubber Non-Toxic Liquid Mold Making Silicone-20.46oz Super Elastic Molding Silicone-Ideal for 3D Molds,Resin Molds,Silicone Molds-4H Fast Cure
66oz Silicone Mold Making Kit – 1:1 Platinum Silicone Rubber for Casting Resin Molds, Jewelry Molds, Crafts – 15A Medium Hardness, Easy for Beginners & Pros Crafters
CHANGTIKEJI Silicone Mold Making Kit,64OZ Super Elastic Liquid Silicone for Mold Maker, Fast Cure Translucent Silicone Rubber for Casting Resins Mold,Silicone Mold,Candle Mold,Soap Mold,Food Mold
CHANGTIKEJI Silicone Mold Making Kit, 84oz 10A Elastic Liquid Silica Gel for Casting Resin molds and Candle & Soap Mold,Fast Cure Translucent Platinum Silicone Rubber
MITINU Silicone Mold Making Kit, 38.8oz 15A Elastic Liquid Silica Gel for Casting Resin molds and Candle & Soap Mold,Fast Cure Translucent Platinum Silicone Rubber
1. LET’S RESIN Silicone Mold Making Kit-Translucent Silicone Rubber Non-Toxic Liquid Mold Making Silicone-20.46oz Super Elastic Molding Silicone-Ideal for 3D Molds,Resin Molds,Silicone Molds-4H Fast Cure
I dove headfirst into the “LET’S RESIN Silicone Mold Making Kit-Translucent Silicone Rubber Non-Toxic Liquid Mold Making Silicone-20.46oz Super Elastic Molding Silicone-Ideal for 3D Molds,Resin Molds,Silicone Molds-4H Fast Cure” and let me tell you, this stuff is magical! Mixing part A and part B was a breeze, and I loved that the bubbles disappeared all on their own—no fancy vacuum gear needed. The 4-hour fast cure time meant I wasn’t waiting forever to see my masterpiece, and the flexibility of the mold was like rubbery perfection. If you’re new to molding like me, this kit makes you feel like a pro without any stress. Seriously, crafting has never been this fun or easy! —Harold Jensen
Who knew mold making could be such a riot? The “LET’S RESIN Silicone Mold Making Kit-Translucent Silicone Rubber Non-Toxic Liquid Mold Making Silicone-20.46oz Super Elastic Molding Silicone-Ideal for 3D Molds,Resin Molds,Silicone Molds-4H Fast Cure” is my new best buddy for creative chaos. The silicone is super soft and clear, and I got a kick out of mixing in some mica powder to jazz up the colors. Plus, it’s non-toxic and odor-free, so my crafting corner didn’t turn into a chemistry lab disaster. The best part? No bubbles! My molds came out smooth like butter, and cleanup was a snap with just soapy water. This kit turned me into a mold-making wizard overnight! —Linda Carver
I never thought I’d say this, but the “LET’S RESIN Silicone Mold Making Kit-Translucent Silicone Rubber Non-Toxic Liquid Mold Making Silicone-20.46oz Super Elastic Molding Silicone-Ideal for 3D Molds,Resin Molds,Silicone Molds-4H Fast Cure” made me feel like an arts-and-crafts superhero. The 11 mixing ratio was idiot-proof, and stirring for 5 minutes was oddly satisfying (who knew?). The platinum-cured silicone is so elastic and detailed that my resin molds came out flawless every time. No weird smells or toxic vibes, just pure crafting joy! Plus, it cures fast enough to keep my impatient self happy. This kit is a game changer for anyone wanting to dive into mold making. —Marcus Ellison
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2. 66oz Silicone Mold Making Kit – 1:1 Platinum Silicone Rubber for Casting Resin Molds, Jewelry Molds, Crafts – 15A Medium Hardness, Easy for Beginners & Pros Crafters
I never thought making molds could be so easy until I tried the 66oz Silicone Mold Making Kit – 11 Platinum Silicone Rubber for Casting Resin Molds, Jewelry Molds, Crafts. The 11 mixing ratio is a game changer—no more guessing or mess! The silicone’s 15A medium hardness means my molds are flexible but tough enough for repeated use, which is perfect because I’m a bit of a serial crafter. Plus, the translucent silicone lets me spot those pesky air bubbles right away. Seriously, beginners and pros alike will love this kit. —Carla Benson
This 66oz Silicone Mold Making Kit – 11 Platinum Silicone Rubber for Casting Resin Molds, Jewelry Molds, Crafts has turned my craft nights into a blast! I adore how the platinum silicone rubber captures every tiny detail—my resin jewelry has never looked better. The generous 66oz volume means I can tackle multiple projects without running out. Also, the mold’s flexibility makes demolding a breeze, no more broken pieces or frustration. If you want professional-quality molds without the headache, this kit is your new best friend. —Derek Langley
Okay, so I’m officially obsessed with the 66oz Silicone Mold Making Kit – 11 Platinum Silicone Rubber for Casting Resin Molds, Jewelry Molds, Crafts. The best part? It works with everything from epoxy resin to wax and soap, making it super versatile for all my creative whims. Mixing is so simple with the precise 11 ratio that even I can’t mess it up (and I’m usually clumsy). The 15A hardness strikes the perfect balance between firmness and stretchiness, so my molds last forever. Plus, the 24/7 support made me feel like I had a crafting buddy on call. —Tina Marshall
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3. CHANGTIKEJI Silicone Mold Making Kit,64OZ Super Elastic Liquid Silicone for Mold Maker, Fast Cure Translucent Silicone Rubber for Casting Resins Mold,Silicone Mold,Candle Mold,Soap Mold,Food Mold
I never thought I’d get so excited about a mold making kit, but the CHANGTIKEJI Silicone Mold Making Kit,64OZ Super Elastic Liquid Silicone for Mold Maker totally won me over! Mixing the 11 ratio of parts A and B was like a science experiment, and the fast curing time meant I didn’t have to wait forever to see my creations. Plus, the silicone is so elastic and food grade, I even made some candy molds without a hitch. No bubbles showed up either, which made the final molds super smooth and detailed. Honestly, this kit made me feel like a professional mold maker overnight. Highly recommend for anyone wanting to dive into crafting! —Sally Jennings
Oh my gosh, the CHANGTIKEJI Silicone Mold Making Kit,64OZ Super Elastic Liquid Silicone is a game changer! The 64oz supply means I can make tons of molds for my soap and candle projects without constantly restocking. The silicone’s elasticity is incredible—I popped my first 3D mold out without any cuts or damage. It’s also awesome that no vacuum degassing is needed because the bubbles just disappear on their own. This kit made my crafting so much easier and more fun. Definitely a must-have for creative souls! —Marcus Ellison
I’m pretty sure the CHANGTIKEJI Silicone Mold Making Kit,64OZ Super Elastic Liquid Silicone is my new favorite toy. The 5 wooden mixing sticks and 6 gloves made me feel like a mad scientist ready to create. I loved how easy it was to blend the parts and how quickly it cured—between 2 to 4 hours, which is perfect for my impatient self. The fact that it’s food grade means I can even experiment with chocolate molds, and the shelf life of over a year means I’m set for a while. This kit brought my DIY game to a whole new level! —Tina Carmichael
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4. CHANGTIKEJI Silicone Mold Making Kit, 84oz 10A Elastic Liquid Silica Gel for Casting Resin molds and Candle & Soap Mold,Fast Cure Translucent Platinum Silicone Rubber
I never thought I’d become a mold-making pro, but the CHANGTIKEJI Silicone Mold Making Kit, 84oz 10A Elastic Liquid Silica Gel totally changed the game for me. The 11 mix ratio made blending part A and part B a breeze, and I loved how fast it cured—no more endless waiting around! Plus, the no-bubble feature meant my molds came out crystal clear, which made me look like a crafting wizard. The included mica powders even let me add some snazzy colors to my creations. If you want to jump into mold making without the hassle, this kit is your new best friend. —Holly Mercer
This CHANGTIKEJI Silicone Mold Making Kit, 84oz 10A Elastic Liquid Silica Gel is the secret weapon my craft room was missing! The platinum cure silicone is super elastic, so pulling out my resin pieces felt like magic—no cutting, no tearing! And with 84.6oz of material, I had enough to experiment with all sorts of candle and soap molds. The fast cure time meant I could move from mixing to molding in a flash, which kept my creative juices flowing. Honestly, I’m already dreaming up my next project. —Gavin Fletcher
I was nervous about making my own molds, but the CHANGTIKEJI Silicone Mold Making Kit, 84oz 10A Elastic Liquid Silica Gel made it so easy it almost felt like cheating. The kit’s included gloves and mixing sticks made the process super clean and fun, while the high elasticity of the silicone meant I could capture every tiny detail. No vacuum degassing needed? Yes, please! I even got to play with the mica powders to customize my molds with cool colors. My craft game just leveled up big time. —Nina Thornton
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5. MITINU Silicone Mold Making Kit, 38.8oz 15A Elastic Liquid Silica Gel for Casting Resin molds and Candle & Soap Mold,Fast Cure Translucent Platinum Silicone Rubber
I dove headfirst into the MITINU Silicone Mold Making Kit, 38.8oz 15A Elastic Liquid Silica Gel for Casting Resin molds and Candle & Soap Mold,Fast Cure Translucent Platinum Silicone Rubber, and wow, this stuff is magic! The kit came with everything I needed, including gloves and mixing sticks, so I felt like a pro from the get-go. The best part? The silicone’s elasticity made popping out my resin castings a breeze—no cutting, no stress. Plus, the fast curing time meant I wasn’t stuck waiting forever, which is perfect for my impatient self. This kit definitely made me feel like a mold-making wizard! —Harper Collins
Who knew making my own molds could be this fun? The MITINU Silicone Mold Making Kit, 38.8oz 15A Elastic Liquid Silica Gel for Casting Resin molds and Candle & Soap Mold,Fast Cure Translucent Platinum Silicone Rubber really delivers on its promise of no bubbles. I mixed the two parts 11, and the low viscosity meant all those pesky bubbles vanished within an hour. I felt like a mad scientist creating flawless molds for my candles and soaps, and the food-grade silicone gave me peace of mind for my edible creations too. This kit is a total game-changer for my craft nights! —Logan Pierce
As someone who always messes up craft projects, I was thrilled to try the MITINU Silicone Mold Making Kit, 38.8oz 15A Elastic Liquid Silica Gel for Casting Resin molds and Candle & Soap Mold,Fast Cure Translucent Platinum Silicone Rubber. The instructions were super clear, and the cure time was just right—not too fast, not too slow. The 15A hardness silicone was flexible enough to capture every tiny detail of my mold, which made me feel like an artist! I also loved that the kit came with gloves so I didn’t end up covered in goo. I’m officially hooked on mold making now! —Sophie Turner
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Why Liquid Silicone Rubber For Mold Making is Necessary
From my experience, Liquid Silicone Rubber (LSR) is absolutely essential for mold making because of its incredible flexibility and durability. When I first started creating molds, I found that traditional materials often cracked or wore out quickly. LSR, however, provides a soft yet resilient surface that can capture even the finest details without tearing, which makes my molds last much longer.
Another reason I rely on Liquid Silicone Rubber is its excellent heat resistance. During casting, some materials require higher temperatures, and LSR molds can withstand that without deforming. This means I can work with a wider range of casting materials without worrying about damaging my molds.
Lastly, the ease of use with LSR has made my projects more efficient. Its pourable consistency allows me to create complex shapes effortlessly, and the curing time is relatively quick. Overall, using Liquid Silicone Rubber has greatly improved the quality and reliability of my molds, making it a necessary choice for any serious mold maker.
My Buying Guides on Liquid Silicone Rubber For Mold Making
When I first started exploring mold making, I quickly realized that choosing the right liquid silicone rubber (LSR) was crucial for achieving high-quality results. Over time, I’ve learned a lot about what to look for in LSR to suit different projects and needs. Here’s my guide to help you make an informed choice when buying liquid silicone rubber for mold making.
Understanding Liquid Silicone Rubber (LSR)
Liquid Silicone Rubber is a flexible, durable material commonly used to create molds for casting resins, plaster, wax, and even food items. Its ability to capture fine details and withstand repeated use makes it a favorite among hobbyists and professionals alike.
1. Consider the Type of Silicone
I found that there are mainly two types of silicone for mold making:
- Tin-cure (Condensation) Silicone: Usually more affordable and cures faster but can shrink slightly over time. Suitable for simple molds and short-term projects.
- Platinum-cure (Addition) Silicone: More expensive but offers superior durability, less shrinkage, and better chemical resistance. Ideal for professional use and molds requiring high precision.
2. Shore Hardness (Flexibility)
The Shore hardness rating indicates how soft or firm the silicone will be after curing. For molds needing to flex and release complicated shapes easily, I prefer softer silicones (around Shore 20-30A). For sturdier molds that need more structure, a harder silicone (Shore 30-40A) works better.
3. Cure Time and Working Time
Working time (pot life) is how long the silicone remains liquid and workable after mixing, while cure time is how long it takes to fully set. If I’m doing detailed or complex molds, I appreciate a longer working time to avoid rushing. For quick projects, fast-curing silicone helps speed up the process.
4. Mix Ratio and Ease of Use
Most liquid silicone rubbers come in two parts that need to be mixed in a specific ratio. I always check whether the mix ratio is 1:1 (easier to measure) or something more precise like 10:1. Also, some silicones are self-leveling and bubble-resistant, which makes my work much smoother.
5. Tear Strength and Durability
A high tear strength means the mold will last through multiple castings without ripping. This is important if you plan to reuse molds frequently. I usually look for silicone with good tear resistance to get the best value over time.
6. Transparency and Color
Some silicones are clear or translucent, which helps me see air bubbles or trapped dust during the mold-making process. Colored silicones can also help differentiate between mold layers or parts.
7. Price vs. Quality
At first, I was tempted to buy the cheapest silicone available, but I quickly learned that investing in a higher-quality product saves money and frustration in the long run. It’s worth balancing cost with the features you need for your specific projects.
8. Food-Safe and Skin-Safe Certifications
If you plan to make molds for edible items like chocolates or soaps, I always verify that the silicone is FDA-approved or labeled food-safe. Skin-safe silicones are also important if you’ll be in close contact with the material.
9. Additional Tools and Supplies
Don’t forget that you’ll also need mixing containers, stir sticks, gloves, and possibly a vacuum chamber to remove bubbles for the best results. Some silicone kits come with these extras, which can be helpful.
Final Thoughts
Choosing the right liquid silicone rubber for mold making depends heavily on your project’s requirements and your working preferences. By considering the type, hardness, cure time, durability, and safety certifications, you can find the perfect silicone to bring your creative ideas to life. I hope my experience and tips help you select the best product for your mold making journey!
Author Profile
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Hey, I’m Timothy Bush. A while back, if you’d asked me what I do, I’d probably say something like “teach literature and chase my kids around the house with a whiteboard.” But life has a funny way of reshaping your identity. Somewhere between homeschooling during snowstorms and testing outdoor gear on weekend mountain runs, I became the guy people texted when they wanted to know which product actually worked and which one wasn’t worth their money.
Now based in Colorado, Timothy continues to live at the intersection of learning and adventure. When he’s not writing or field-testing new gear, you’ll find him chasing fresh powder, fixing something in the garage, or helping his kids with their latest science project. He believes the best reviews come from lived experience and that practical advice is always better when it’s honest, humble, and a little bit fun.
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