why $10 to ship a can?

Dear Dan,Universal Mold Release is considered a hazard to ship being as it is an aerosol can. It could also have to do with how far it is shipping. If you go onto our Smooth-On website and go to distributors you may find a distributor in your state or at least close to your state. If you have further questions, please don't hesitate to contact me.Best Regards,Dawn

How do people remove this from the cast part? From what I understand, paint or primer won't stick to the part if the release agent is present.

Release agent can easily be cleaned off with a little isopropyl alcohol and a toothbrush.

I have silicon molds and plan to cast with resin to make antler reproductions. Should I spray this inside the silicon mold for easy release of resin?

No. This is a silicone-based agent. If you use it on silicone molds, it will glue them together. You’re better off with something like Mann Ease Release.

Smooth On Universal Mold Release 14 Fluid Ounce Aerosol Can

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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Description

🛠️ Mold smarter, not harder — release perfection every time!

TRUSTED BY CREATORS - Join 2,000+ professionals who rate it 4.7 stars for reliable, consistent results.
POROUS SURFACE READY - Pairs with SuperSeal to prep porous materials like wood and plaster for perfect mold release.
MOLD LONGEVITY BOOSTER - Prolongs the lifespan of your molds, maximizing your creative output and ROI.
UNIVERSAL COMPATIBILITY - Seamlessly releases most liquid rubbers & plastics for flawless mold separation.
HEAT RESISTANT PERFORMANCE - Operates efficiently across a broad 70°F to 500°F range, perfect for diverse casting needs.

Smooth-On Universal Mold Release is a 14 fl. oz. aerosol designed for professional mold making and casting. It effectively releases polyurethanes and polysulfides from prepared models, works across a wide temperature range (70°F-500°F), and extends mold life. Ideal for use with porous materials when paired with a sealer, it’s a trusted choice for over 2,000 users seeking consistent, high-quality mold separation.

Reviews

User

Effective but a bit pricey

Works well, but it's a bit pricey. Effective for most mold-making tasks, but there are more affordable alternatives available.

24.04.2025

User

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.

1.10.2024

User

Definitely Recommend

Works great getting resin projects out of our Tyvek tape lined molds with very little effort

22.05.2026

User

Luv of choice

These luv has improve my life tremendously. No more frictions just love

4.01.2024

User

Good stuff

28.05.2026

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Asin	B004BNHLOK
Date First Available	16 March 2013
Is Discontinued By Manufacturer	No
Item Model Number	751635700109
Manufacturer	Smooth-On
Product Dimensions	20.83 x 20.32 x 11.43 cm; 430.91 g

Smooth-On Universal Mold Release - 14 Fluid Ounce Aerosol Can

Description

Specifications

Reviews

Common Questions