---
product_id: 1792912
title: "Smooth-On OOMOO™ 30 Tin Cure Silicone Rubber, Easy to Use Silicone Mold Making Kit, Pint Unit"
brand: "smooth-on"
price: "€ 88.31"
currency: EUR
in_stock: true
reviews_count: 13
category: "Smooth On"
url: https://www.desertcart.sk/products/1792912-smooth-on-oomoo-30-tin-cure-silicone-rubber-easy-to
store_origin: SK
region: Slovakia
---

# 6-hour fast cure Perfect for art & industrial molds 1:1 mix ratio, no scale needed Smooth-On OOMOO™ 30 Tin Cure Silicone Rubber, Easy to Use Silicone Mold Making Kit, Pint Unit

**Brand:** smooth-on
**Price:** € 88.31
**Availability:** ✅ In Stock

## Summary

> 🎨 Mold your masterpiece faster—because your creativity can’t wait!

## Quick Answers

- **What is this?** Smooth-On OOMOO™ 30 Tin Cure Silicone Rubber, Easy to Use Silicone Mold Making Kit, Pint Unit by smooth-on
- **How much does it cost?** € 88.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/1792912-smooth-on-oomoo-30-tin-cure-silicone-rubber-easy-to)

## Best For

- smooth-on enthusiasts

## Why This Product

- Trusted smooth-on brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Mess-Free Demolding:** Peels off cleanly and pairs well with Ease Release 200 for flawless mold separation.
- • **Fast & Reliable Curing:** Ready in just 6 hours, so your creative projects keep moving at millennial speed.
- • **Effortless Precision Mixing:** 1:1 volume ratio means no complicated measuring—just mix and mold!
- • **Beginner-Friendly Mold Making:** Ideal for one- or two-piece molds, perfect for novices stepping up their craft game.
- • **Versatile Casting Compatibility:** Works seamlessly with plaster, resin, wax, and more—expand your creative horizons.

## Overview

Smooth-On OOMOO™ 30 is a low-viscosity, tin-cure silicone rubber designed for easy, fast mold making. With a simple 1:1 mix ratio and a 6-hour cure time, it’s perfect for beginners and professionals alike creating one- or two-piece molds for art, sculpture, and industrial prototypes. Compatible with plaster, resin, and wax, it offers clean demolding and reliable results that keep your projects flowing.

## Description

Product description

Review: Amazing for beginner mold makers- and some tips! - I am a doll sculptor teaching myself how to make replica parts of my pieces to expedite production, and I've experimented with a few different products for casting parts and replicating them: none of them beat out the results I got with Smooth-On! The 1:1 ratio is very simple and while you will waste some product in your first couple of rounds, you very quickly begin to be able to eyeball the measurements per mold; I've made 5 now and I can pour without weighing the pieces, without wasting product. I began with using foam core and hot glue to create the vessels in which to pour the silicone onto the pieces, but it was very messy and time consuming; I now swear by using Lego bricks instead and wrapping the edges of them with Frog Tape to avoid leakage. I haven't had any issues with curing, perhaps because every time I pour I mix each part in their respective pots for about 30 seconds before I pour to mix them. I'll then use wooden skewers to mix them together for about a minute before preparing to pour. I use a small spatula to help get the silicone off the sides of the mixing cup as I pour, ensuring I use as much product as possible per batch. Two-part molds have been easy and amazing with this. Just be sure to use sulphur-free clay and make keys in the clay before making your first mold part. As for the second part, I have the best results with simple Vaseline; I use a cheap paintbrush to apply the Vaseline to the mold and get into every crevice. I've had molds ruined with mold release spray not working well enough, but never had a single issue separating my mold parts with Vaseline. Smooth-On also makes my favorite material to cast my molds: their Liquid Plastic! The drying time is very fast and I can easily sand off the seams with fine grit sandpaper and buff it with a polisher. If I need to patch anything up, I can use air dry epoxy clay. Overall, Smooth-On is by far the brand I trust and have had the best results with as a self-taught mold maker and sculptor!
Review: Quality product but read this before buying. - I buy these pretty frequently for work and it's currently my favorite silicone for making molds. I've bought about 40 so far and would say about 15% arrive unusable, either from leaking or one of the components being completely coagulated (not the fault of the shipper by any means), but it's desertcart so getting replacements isn't difficult, especially since here in the US they typically arrive within a few days of ordering. If you are going to do a large pour with multiple sets, make sure to give each container a shake to make sure they're all ready to use. I've had no issues with thick pours (3-4 inches thick), just make sure you shake both containers REALLY well before use and make sure it's very well mixed and it is on solid colour without streaks or spots before pouring. It cleans up very easy, if it is mixed and spills, it peals off so satisfyingly after curing. After opening, I would recommend using it all within a week. It will cure while in contact with many things other silicones won't, like wood, polymer clay, and cured silicon of the same type(I like to use previously made molds as filler to save on material, just make sure it's cleaned very well with soapy water then let dry). I mix by weight, not by volume and typically end up with extra part B After having use all that I need from a set, I like to let the remanence of part A drip into a cup until there are no drips left, then mix with the proportionate part B and let set, then that can later be used as filler material on a later mold. I RECOMEND USING A SILICON TO RESIN RELESE SPRAY IF CASTING RESIN INTO YOUR MOLD. Definitely a fan of the quality and it's pretty easy to use. Definitely recommend vacuuming after pouring to get rid of air bubbles, not always 100% necessary but it helps. I've never had a batch not turn out so if it's sticky or doesn't set, it's most likely user error. I always let it set for 24 hours, longer shouldn't be necessary. The company doesn't like giving refunds in the event of the product arriving unusable so if a return must be made, do it 100% through desertcart and not the seller. That's about all I can think of to say about it.

## Features

- Easy-To-Use Tin Cure Silicones formulated for mold-making for art-related projects & industrial applications.
- OOMOO 30 silicones do not have great tear strength & are suitable for making one to two-piece block molds, ideal for novice mold makers.
- For variety of art-related & industrial applications such as sculpture & prototype reproduction, casting plaster, resins, wax, & more!
- Mix Ratio=1A:1B by Volume | No Scale & Vacuum Degassing Required | Cures in 6 hours.
- Although not usually necessary, use Ease Release 200 for easier demolding when pouring into or over most surfaces.
- Perform a small-scale test & follow technical bulletin instructions at www. smooth-on.com.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004BNF3TK |
| Best Sellers Rank | #34,783 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #322 in Sculpture Molding & Casting Products |
| Brand | Smooth-On |
| Brand Name | Smooth-On |
| Color | ['Lavender'] |
| Compatible Material | Rubber |
| Container Type | Can |
| Customer Reviews | 4.3 out of 5 stars 3,759 Reviews |
| Full Cure Time | 6 Hours |
| Global Trade Identification Number | 00751635821415 |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 2.87 Pounds |
| Manufacturer | Smooth-On, Inc. |
| Material | Silicone |
| Material Type | Silicone |
| Model | OOMOO 30 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Easy-to-use |
| Part Number | OOMOO 30 |
| Special Feature | Easy-to-use |
| Specific Uses For Product | Interior/Exterior |
| Tensile Strength | 240 Pounds Per Square Inch |
| UPC | 751635821415 |
| Unit Count | 16.0 Ounce |
| Viscosity Level | Low |
| Volume | 1200 Milliliters |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Smooth-On
- **Color:** ['Lavender']
- **Item Form:** Liquid
- **Material:** Silicone
- **Specific Uses For Product:** Interior/Exterior

## Images

![Smooth-On OOMOO™ 30 Tin Cure Silicone Rubber, Easy to Use Silicone Mold Making Kit, Pint Unit - Image 1](https://m.media-amazon.com/images/I/71Y93PLsHcL.jpg)
![Smooth-On OOMOO™ 30 Tin Cure Silicone Rubber, Easy to Use Silicone Mold Making Kit, Pint Unit - Image 2](https://m.media-amazon.com/images/I/71g+Szd94uL.jpg)
![Smooth-On OOMOO™ 30 Tin Cure Silicone Rubber, Easy to Use Silicone Mold Making Kit, Pint Unit - Image 3](https://m.media-amazon.com/images/I/71Dp+So3NTL.jpg)
![Smooth-On OOMOO™ 30 Tin Cure Silicone Rubber, Easy to Use Silicone Mold Making Kit, Pint Unit - Image 4](https://m.media-amazon.com/images/I/71xawQ0r5NL.jpg)
![Smooth-On OOMOO™ 30 Tin Cure Silicone Rubber, Easy to Use Silicone Mold Making Kit, Pint Unit - Image 5](https://m.media-amazon.com/images/I/71MaMCgz1tL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How large of a mold will this usually make? One large one? a few small ones? or is there a specified size reccommended?**
A: I molded an object with a volume of 37 ounces but it took a set and 1/4 of another set of these bottles. Safe bet that if you have a model with a displacement greater than the one I did, you need two sets. Some find the simplest way is to pour rice around your model then pour the rice into measuring cups to get a better idea of how much. The hollow mold that I made was about 11.5 inches high and 4 inches in diameter with a width of 1 inch on the sides and bottom of the mold. So.. to encapsulate a volume of 37 ounces with enough material so that the mold was free standing it was a set and 1/4 of silicone at the least. My mold did not have a top though, with a top, it would have been a set and a half, no question about it.

**Q: is this heat resistant?**
A: Not positive but aren't all silicones heat resistant. Great product.

**Q: How many ounces is each bottle?**
A: It is sold and labeled in Lbs.Part A is 1.2lbs and Part B is 1.6lbs and I can't find any label that provides info regarding ounces.  The dimensions are almost the same size as a 16 oz bottle so it's close to 16oz per bottle but that it an estimate.  Sorry I can't provide more info.

**Q: Is it enough liquid to make a 12" vinyl record mold?**
A: One would probably be enough, but it would be a thin coat. If you want the mold to be more durable, might go for a second just to hold the shape better.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing for beginner mold makers- and some tips!
*by C***E on January 18, 2025*

I am a doll sculptor teaching myself how to make replica parts of my pieces to expedite production, and I've experimented with a few different products for casting parts and replicating them: none of them beat out the results I got with Smooth-On! The 1:1 ratio is very simple and while you will waste some product in your first couple of rounds, you very quickly begin to be able to eyeball the measurements per mold; I've made 5 now and I can pour without weighing the pieces, without wasting product. I began with using foam core and hot glue to create the vessels in which to pour the silicone onto the pieces, but it was very messy and time consuming; I now swear by using Lego bricks instead and wrapping the edges of them with Frog Tape to avoid leakage. I haven't had any issues with curing, perhaps because every time I pour I mix each part in their respective pots for about 30 seconds before I pour to mix them. I'll then use wooden skewers to mix them together for about a minute before preparing to pour. I use a small spatula to help get the silicone off the sides of the mixing cup as I pour, ensuring I use as much product as possible per batch. Two-part molds have been easy and amazing with this. Just be sure to use sulphur-free clay and make keys in the clay before making your first mold part. As for the second part, I have the best results with simple Vaseline; I use a cheap paintbrush to apply the Vaseline to the mold and get into every crevice. I've had molds ruined with mold release spray not working well enough, but never had a single issue separating my mold parts with Vaseline. Smooth-On also makes my favorite material to cast my molds: their Liquid Plastic! The drying time is very fast and I can easily sand off the seams with fine grit sandpaper and buff it with a polisher. If I need to patch anything up, I can use air dry epoxy clay. Overall, Smooth-On is by far the brand I trust and have had the best results with as a self-taught mold maker and sculptor!

### ⭐⭐⭐⭐⭐ Quality product but read this before buying.
*by L***R on January 8, 2026*

I buy these pretty frequently for work and it's currently my favorite silicone for making molds. I've bought about 40 so far and would say about 15% arrive unusable, either from leaking or one of the components being completely coagulated (not the fault of the shipper by any means), but it's amazon so getting replacements isn't difficult, especially since here in the US they typically arrive within a few days of ordering. If you are going to do a large pour with multiple sets, make sure to give each container a shake to make sure they're all ready to use. I've had no issues with thick pours (3-4 inches thick), just make sure you shake both containers REALLY well before use and make sure it's very well mixed and it is on solid colour without streaks or spots before pouring. It cleans up very easy, if it is mixed and spills, it peals off so satisfyingly after curing. After opening, I would recommend using it all within a week. It will cure while in contact with many things other silicones won't, like wood, polymer clay, and cured silicon of the same type(I like to use previously made molds as filler to save on material, just make sure it's cleaned very well with soapy water then let dry). I mix by weight, not by volume and typically end up with extra part B After having use all that I need from a set, I like to let the remanence of part A drip into a cup until there are no drips left, then mix with the proportionate part B and let set, then that can later be used as filler material on a later mold. I RECOMEND USING A SILICON TO RESIN RELESE SPRAY IF CASTING RESIN INTO YOUR MOLD. Definitely a fan of the quality and it's pretty easy to use. Definitely recommend vacuuming after pouring to get rid of air bubbles, not always 100% necessary but it helps. I've never had a batch not turn out so if it's sticky or doesn't set, it's most likely user error. I always let it set for 24 hours, longer shouldn't be necessary. The company doesn't like giving refunds in the event of the product arriving unusable so if a return must be made, do it 100% through Amazon and not the seller. That's about all I can think of to say about it.

### ⭐⭐⭐⭐⭐ Worked Great!
*by C***K on September 29, 2018*

I thought this product worked pretty great. I didn't read the reviews before hand and I guess I'm glad I didn't. As the description state, this is a product has two compounds that come in two different bottles. You measure (I just used a regular measuring cup) the same amount for both compounds, mix thoroughly and pour into/over whatever you are making a mold of. One bottle will have a blue compound that is a thin-ish consistency and the other bottle is a pink compound with a much thicker consistency. I did read some of the other reviews and they mention getting the product and the pink compound was super thick, "chunky" or even solid. The instructions that come with the compound do mention that the product does not have a long shelf life, and actually recommends using it ASAP. So I am guessing that is what happened to other people, they either ended up getting the compound that had been sitting around awhile or didn't use it fast enough after they recieved it. The instructions mention using a releasing agent, I didn't. It worked out fine for me. I was using several different objects of different types of materials to make molds of and I didn't have any issue de-molding anything. I'm not going so far as to say you don't need it, but I would say that I don't know that it is necessary. I will say the objects I was making molds of didn't have a lot of nooks and crannies that the molding compound would make it's way into, most of the surfaces were flat and smooth. I thought there could be some more clarity in the instructions. The instructions mention a "cure time" and a "pot time". Cure time is pretty self explanatory for most people (how long it takes for the product to set up.). But I wasn't and still am not sure what "pot time" is. I have an idea, but again, not 100% sure. My one big piece of advice for using this would be to have a game plan in place before you start making molds. I had a vague idea of what I was going to do and ended up making a bit of a mess. The two compounds have different consistencies so an idea of how your are going to mix these thoroughly is necessary. I mix these compounds in a dixie cup with a chopstick (I realize now how ridiculous this sounds) and I thought I had mixed it well, when I went to pour the compound into the cookie sheet I was using I saw there were parts that hadn't mixed as well. The instructions call out that mixing it thoroughly will yield the best results, so I felt like i was kind of scrambling to get it all mixed before the compound started to set up. I did mention before, the mess. This is a really messy process. Luckily I found that clean up was SUPER easy. I was kind of worried about it since I was getting compound all over my cabinets and hands and everything. But I wiped up most things with a paper towel and then soap and water after the fact. Very easy to clean up.

## Frequently Bought Together

- Smooth-On OOMOO™ 30 Tin Cure Silicone Rubber, Easy to Use Silicone Mold Making Kit, Pint Unit
- Smooth-Cast™ 300: Bright White, Low Viscosity, Liquid Plastic Casting Resin - Pint Unit
- Smooth-On Universal Mold Release - 14 Fluid Ounce Aerosol Can

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-05-27*