---
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: "78598CFA"
currency: XOF
in_stock: true
reviews_count: 7
category: "Smooth On"
url: https://www.desertcart.sn/products/1792912-smooth-on-oomoo-30-tin-cure-silicone-rubber-easy-to
store_origin: SN
region: Senegal
---

# 6-hour full cure time Low viscosity for easy pouring 1:1 mix ratio by volume Smooth-On OOMOO™ 30 Tin Cure Silicone Rubber, Easy to Use Silicone Mold Making Kit, Pint Unit

**Brand:** smooth-on
**Price:** 78598CFA
**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?** 78598CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/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 or Vaseline for flawless mold separation every time.
- • **Fast, Reliable Curing:** Fully sets in just 6 hours, so your creative projects keep moving without downtime.
- • **Effortless Precision Mixing:** Simple 1:1 volume ratio means no scale needed—perfect for busy pros who value speed and accuracy.
- • **Beginner-Friendly Mold Making:** Ideal for one- or two-piece block molds—get professional results even if you’re just starting out.
- • **Versatile Casting Compatibility:** Works seamlessly with plaster, resin, wax, and more—expand your creative horizons effortlessly.

## Overview

Smooth-On OOMOO™ 30 is a low-viscosity, tin-cure silicone rubber designed for easy, precise mold making with a simple 1:1 mix ratio by volume. It cures fully in 6 hours, making it ideal for both novice and professional mold makers working with plaster, resin, wax, and more. Its forgiving formula peels off cleanly and works well with release agents, ensuring smooth demolding and high-quality reproductions every time.

## Description

Shop Smooth-On at the desertcart Arts, Crafts & Sewing store. Free Shipping on eligible items. Save on everyday low prices.

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.
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!

## 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 | #67,892 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #559 in Sculpture Molding & Casting Products |
| Brand | Smooth-On |
| Color | ['Lavender'] |
| Date First Available | November 26, 2008 |
| Full Cure Time | 6 Hours |
| Global Trade Identification Number | 00751635821415 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 1200 Milliliters |
| Item Weight | 2.87 pounds |
| Item model number | OOMOO 30 |
| Manufacturer | Smooth-On, Inc. |
| Material | Silicone |
| Number of Pieces | 2 |
| Package Information | Can |
| Product Dimensions | 7.6 x 5.9 x 3.1 inches |
| Tensile Strength | 240 Pounds Per Square Inch |
| UPC | 751635821415 |
| Unit Count | 16.0 Ounce |
| Viscosity | Low |
| Viscosity Level | Low |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Smooth-On
- **Color:** ['Lavender']
- **Item Form:** Liquid
- **Item Package Quantity:** 1
- **Material:** Silicone

## 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

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ 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!

### ⭐⭐⭐⭐⭐ Review
*by A***R on April 13, 2017*

Great Product. Thank you.

## 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 Senegal*
*Store origin: SN*
*Last updated: 2026-02-12*