Cart (0 Items)

Get Our Best Prices Everyday - Become a VIP!

#1 Place for Craft Supplies, Art Supplies, Artist Materials and Kids Crafts

Shopping Departments

Adhesives

Airbrushing

Architecture & Drafting

Books & Media

Brushes

Canvas

Ceramics

Crafts

Display & Presentation

Drawing & Illustration

Easels

Framing

Furniture

Glass & Tile Art

Kids' Korner

Painting

Paper & Boards

Photography

Printmaking

Safety & Cleaning

Scrapbooking

Sculpting

Storage

Tools

Transporting

Gift Certificates

Favorites

Bargain Bin

HOME
Brand Names
Filter by Brand: SMOOTH-ON
Silicone Mold Making Rubber

Zoom Image

Silicone Mold Making Rubber

by Smooth-On

Use this silicone mold making rubber for making perfect reproductions of original models. It captures intricate detail and is easy to use. OOMOO 30 is easy to use silicone rubber compounds that feature convenient one-to-one by volume mix ratios (no scale necessary). Very low viscosity for easy mixing and pouring, and vacuum degassing is not necessary. Cures at room temperature with negligible shrinkage. OOMOO 30 has a 30-minute pot life, with a six-hour cure time. For The Novice Mold Maker - OOMOO 30 does not have great tear strength. They are good for making simple one- or two-piece block molds. OOMOO 30 is suitable for a variety of art-related and industrial applications including making molds for sculpture and prototype reproduction, casting plaster, resins, and wax. Net weight 2.9 lbs.

Technical Information
Mixing Ratio: One to One by volume (100A:130B by weight)
Pot Life: 30 min.
Demold: 6 hrs.
Color: Lavender

Properties (Part Aand B Mixed)
Viscosity: 4,250 cps
G/CC: 1.34
Cu. In./Lb.: 20.6
Tensile Strength: 240 PSI
Elongation At Break: 250%
Die C Tear Strength: 40 pli
Compression Set: 37%
Shrinkage: .0025 in./in.

Ask a question about Silicone Mold Making Rubber Ask a question about this product

Tip It

Average User Rating: Based on (12 Reviews)

Ian A. from Oneonta, NY says:

[Read All Reviews] [Write a Review]

Ask a Question About Silicone Mold Making Rubber

Customer Product Reviews

Write a Review

Rated by: Ian A. in Oneonta, NY

I use this product in casting masks that I carve and I could not ask for anything better. It is easy to use and mix, and yields great results and details. A word of caution though, Be wary of humid days, as I experienced bubbles in the casting (which I had never happened before) which I had not had happen before. Also, make sure you keep the mold clean, I experienced a little sticking when casting with plastic, which was stuck hard and ruined the mold. THIS DOES NOT MEAN THIS IS AN INFERIOR PRODUCT! I am merely mentioning this because I have experienced it under certain conditions and I don't want anyone to waste more silicone than they have to.

Rated by: Beltonbanger in Temple,Tx

I'm a taxidermist and use it for making fish and bird heads. Great stuff!!! Love the set time and the firmness of the product!! Get you some!!!!

Rated by: Matt A. in Arlington, VA

Great stuff, it picks up the detail very well, I don't have a problem with air bubbles because they are in the mold and not the parts where the model is, so there aren't any bumps when I pour in the liquid plastic compound. Great product, keep it up, will order from you in the future!

Rated by: Barry G. in Marietta, GA

I really like the amount of detail that is picked up no matter how small. Compared to other similar rubbers it is a bit too thick for my taste making it more difficult and time consuming to mix. Another problem I have is the softness which is good and bad-good for box molds -bad for two piece or even one cut box molds(it won't stretch much without tearing). All in all though it is a good product I would recommend it for simple mold purposes.

Rated by: Chris E. in Rockport, TX

Product is amazing!!! Exactly as advertised and simple to use. However... be aware that in shipping contents can leak from bottles and the 1 to 1 ratio is no longer feasible. Trying to get the order replaced was unsuccessful.

Rated by: Garrett O. in Aliso Viejo, CA

If you are debating on getting OOMOO 25 or OOMOO 30, definitely get OOMOO 30! Its far more durable and easy to work with. Excellent product for making even complex 2 part molds. 1:1 mix ratio is the easiest I've ever used, and the rubber is fantastic. Highly recommended.

Rated by: Cheryl W. in Brookfield, WI

This silocone rubber has exceeded my expectations for making durable, precise molds. I'm amazed at how perfectly it reproduces the tiniest of details. It's a little pricey, but does make excellent molds. I wish it came in the larger gallon size as one of these "starter kits" will only get me through one project. As always, MisterArt.com service and delivery is first-rate.

Rated by: Jerry Z. in paradise, CA

I have bought this the oomoo 30 and it just gets the detail done very well. It is easy to use and you can make a mold of anything simple a + b mix of equal amounts. Tear strength is okay so just ensure your mold has enough rubber to stay together well. I try to cut corners and get the most out of the product and have pushed the mold to the limit great stuff

Rated by: Z K. in Eastern Side of, TN

I love Oomoo, I love Oomoo, I love Oomoo! Ok, seriously, this is much better than the Oomoo 25 I've been using as it has a much longer pot life, and it does cure harder also. This RTV is perfect for my mold making! :D If you have any interest in making your own molds, for candles, resin, jewelry, sculpture, anything, try it, you so won't be dissapointed!

Rated by: Tamara R. in Chesapeake, VA

Phenomenally easy to use!! The one to one mixture was very easy to get; no guessing. And it made a surprisingly strong silicone. Great product! GREAT price!

Rated by: Tawnya P. in Memphis, TN

This is the best mold maker I have found by far! I have ordered multiple times & I am NEVER let down! This will get the smallest of details down to the letter & my kids (4 of them) love to use this for projects as well! So very easy to use!

Rated by: Yev B. in Wilmette, IL

one of the most detailed making mold i had ever dealt in my life A+++++++++

Write a Product Review for Silicone Mold Making Rubber

Add Your Review

Tell us what you think. We appreciate you taking the time to share your opinion with other artists and crafters. Please keep your review detailed and specific.

Your Overall Rating:

Your Review: Example: This product performed exactly as described on your Web site. Delivery was prompt and the price was the best I found anywhere. Everything was packed very securely. I'm very satisfied with my purchase.

Your name: (as you want it to appear) Example: John D.

Your Location: Example: Houston, TX

Security (enter text from image):

Product reviews are intended to be a resource for artists interested in product quality and use. MisterArt.com reserves the right not to post any product review or to remove any published product review at any time without notice. Published reviews must conform to MisterArt.com guidelines. Your review may be posted on this page within five to ten business days.

Tips on Writing Reviews

Rating Scale

(5-Star) Excellent
(4-Star) Good
(3-Star) Average
(2-Star) Fair
(1-Star) Poor

Do:

Give your perspective on how you used the product and why you liked or disliked it.
Keep your reviews short enough to hold the audience's attention.
Be honest and mindful of others when providing editorial commentary.

Don't:

Include phone numbers, addresses, URLs, or HTML tags.
Write profanity, obscenities, vulgarities, or spiteful comments.
Make defamatory comments.

Please wait...