PMC™ Series
Polyurethane Rubber Compounds
Used in hundreds of industrial and art-related applications, many of our PMC™ rubbers are easy to use and exhibit excellent wear resistance. They cure with negligible shrinkage. They are economical, reproduce exceptional detail and are perfectly suited for production casting of concrete, gypsum and wax. Some PMC™ rubbers are suitable for mechanical parts (gaskets, wheels, pulleys) as well as ball mill liners and vibration/shock pads.
HIGHLIGHTS
PMC™ 121
PMC™ 121
These rubbers will meet the stringent demands of production casting of wax, plasters, concrete, resins and epoxies. The dry version does not exude an oil and can be used for casting waxes, resins, gypsum plasters and other materials. The wet version contains a built-in release agent to aid in demolding hard plasters and concrete.
No Scale Necessary
Low Viscosity
No Vacuum Required
PMC™ 724
PUTS YOU IN CONTROL!
PMC™ 724
PUTS YOU IN CONTROL!
Using optional ‘Part D', you can thicken PMC™-724 to a paste-like consistency for vertical surface brush-on applications or for getting into those hard-to-reach undercuts. If you like to work with a more flexible rubber, optional ‘Part C' is available to soften PMC™-724 all the way down to a Shore A6.
Gram Scale Required
Easy to Modify
Low Viscosity
PMC™ 744
For Strong, Durable Molds
PMC™ 744
For Strong, Durable Molds
Used for years by mold making professionals to cast plaster, concrete, resins, etc. It is excellent for making molds that are strong, durable and dimensionally stable.
No Scale Necessary
Low Viscosity
PMC™ 746
PMC™ 746
Developed to make molds for casting gypsum plasters including making plaster block molds, reproducing ornamental plaster, and also for pre-cast concrete molds, casting waxes, or rigid polyurethanes and epoxies.
No Scale Necessary
Low Viscosity
PMC™ 770, 780, and 790
Tough, Rigid, Industrial Rubber
PMC™ 770, 780, and 790
Tough, Rigid, Industrial Rubber
These hard rubbers offer superior tear and tensile strength, impact and abrasion resistance. Suitable for making concrete stamping pads, mold liners and molds for casting concrete. Also good for making ball mill liners, industrial rollers and belts, rubber mechanical parts.
Gram Scale Required PMC® 770
Industrial Grade
Low Viscosity
Technical and Buying Information
| Select a Product Below | Pot Life | Cure Time | Hardness |
|---|---|---|---|
| › PMC™-121 30/DRY | 30 mins | 16 hrs | 30 A |
| › PMC™-121 30/WET | 30 mins | 16 hrs | 30 A |
| › PMC™-121 50/WET | 30 mins | 16 hrs | 50 A |
| › PMC™-724 | 20 mins | 16 hrs | 40 A |
| › PMC™-744 | 15 mins | 16 hrs | 44 A |
| › PMC™-746 | 15 mins | 16 hrs | 60 A |
| › PMC™-746 Clear Amber | 15 mins | 16 hrs | 60 A |
| › PMC™-770 | 30 mins | 16 hrs | 70 A |
| › PMC™-780 DRY | 25 mins | 48 hrs | 80 A |
| › PMC™-780 WET | 25 mins | 48 hrs | 80 A |
| › PMC™-790 | 20 mins | 48 hrs | 90 A |
VIDEOS and GALLERIES
Step-by-Step How-To Articles
video
How To Make a Urethane Rubber Block Mold
How to build a mold box, measure, mix, and pour urethane rubber to make a 1-piece block mold.
video
How To Make a Concrete Stamp Using Urethane Rubber
Project goal: transform a disused service entrance into an inviting stamped concrete walkway.
video
How to Use a Concrete Stamp
Project: Replace existing service entrance with a decorative concrete walkway.
How To Make a Urethane Rubber Mold of Prop Gun
A cavity pour style urethane rubber mold for casting prop guns.
Beeskep II Candle Operation Running with Smooth-On Rubber
To meet their growing demand, Beeskep II started making their own candle molds with Smooth-On mold rubbers.
video
Prototyping a Durable Conveyor Belt Cleaner
From a PLA 3D printed prototype, learn how to make a durable belt cleaner out of industrial urethane rubber
What Have Other People Done With These Products?
Sculptor James Day Expresses His Visionary Realism
James uses PMC®-744, OOMOO® 30 and Mold Max® 30 rubber
A Glowing Success Story In Wax Casting
To meet a growing demand, Beeskep II started making their own candle molds with Smooth-On mold rubbers.
Duplicating Bellevue Hospital's Landmark Icon
MJM Studios called upon Smooth-On mold rubbers to make a mold of the entire arch
The 'Royal Assault Team 357' Robot
Assisting School Age Kids To Excel In Science Competition With Smooth-On Materials
Finishing daVinci's Unfinished Masterpiece
In an elaborate studio setting in the hills of Pennsylvania, history is in the making – again.
PMC™-746 Urethane Rubber Used to Make Production Furniture Molds
Union City Mirror (Union City, New Jersey) has used PMC®-746 Castable Urethane Mold Rubber for many years to make molds of its intricate and highly detailed furniture molds.
Atlantis Theme Park Hotel and Resort
As many of the exterior ornament pieces at the Atlantis Theme Park Hotel and Resort in the Bahamas were conceived and fabricated by MJM Studios in S. Kearney, New Jersey.