

🛠️ Unlock flawless casts with every pour — don’t get stuck without it!
Smooth-On Universal Mold Release is a 14 fl. oz. aerosol spray designed to effortlessly release polyurethane and polysulfide mold rubbers from prepared models. Ideal for professional and hobbyist mold makers, it extends mold life and works on a variety of materials except silicone molds. Highly rated and trusted for clean, damage-free demolding.





| ASIN | B004BNHLOK |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #9,390 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #6 in Sculpture Release Agents |
| Color | Clear |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,133) |
| Date First Available | November 10, 2010 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 15.2 ounces |
| Item model number | 751635700109 |
| Manufacturer | Smooth-On |
| Material | Plastic, Rubber, Silicone, Wood |
| Number Of Pieces | 1 |
| Part Number | 751635700109 |
| Product Dimensions | 8.2 x 8 x 4.5 inches |
A**X
Best mold release
Perfect, good sized can. Functions perfectly, great value if you’re looking for a silicon on silicon release.
G**R
Great for epoxy release
I have a few large silicone molds for projects. I used to use epoxy tape to prevent sticking of the epoxy in the seams. I didn't think a release spray would work and didn't want to lose my project (or the mold) because of bound epoxy. I finally used this on the sides of one of the molds because the silicone surface had some scratches that might promote sticking. The spray worked so well that I only used it for the next new pour. There was essentially no sticking. The piece popped out so easily ... I'll never go back to tape for this. I recommend it strongly and will continue to buy. No complaints; great product.
J**Y
Works great on multiple surfaces
I use this in my cement molds and it works like a charm I also have used this in resin and I can honestly say I have no complaints
C**S
Works!
The first thing I can say about this product is that it works. I used it to release urethane rubber from various types of molds. The nozzle stays clean even if I forget to wipe it down/clear it. It has a very even, fast spray meaning it only takes a half second to evenly coat a small to medium sized mold, and with the amount in this can it'll probably expire before I use it all. It does have a smell and you're not supposed to breathe in the fumes (work in a well ventilated area per the instructions) but the smell wasn't unpleasant, just strong, and it dissipated quickly. I didn't have any problems with beading or running together even if I put a generous coat on. It does leave the object molded slightly greasy/oily, but for a clean extraction it's a very, very small price to pay. Just wipe it down and you're good to go. I didn't use it with any other types of molding materials, just urethane rubber, so take my glowing review with a grain of salt.
A**S
great item
perfect for the job and exactly as described.
J**D
Mold Release
It works fantastic; beeswax slips right out of the mold.
S**N
Good purchase
Used this for epoxy pour, it worked well.
C**M
Release agent
Satisfied customer.
O**N
Works well, but it's a bit pricey. Effective for most mold-making tasks, but there are more affordable alternatives available.
J**H
These luv has improve my life tremendously. No more frictions just love
N**N
Fonctionne bien sûr toutes les surfaces.
M**R
This is the second time I've bought this. Works great. Kinda pricey but worth it
K**S
Although this was a gift and unknown to me how the product may actually perform. I find that the price is a on the high side though don't know, could have gold in its creation lol. Received very quickly
Trustpilot
1 month ago
1 week ago