PMC® Series

PMC® Series

Polyurethane Rubber Compounds

PMC® Series

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® rubber are suitable for mechanical parts (gaskets, wheels, pulleys) as well as ball mill liners and vibration/shock pads.

Technical Information & More

HIGHLIGHTS

PMC® 121

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 No Scale Necessary
Low Viscosity Low Viscosity
No Vacuum Required No Vacuum Required

PMC® 724

PUTS YOU IN CONTROL!

PMC® 724

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 Gram Scale Required
Easy to Modify Easy to Modify
Low Viscosity Low Viscosity

PMC® 744

For Strong, Durable Molds

PMC® 744

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 No Scale Necessary
Low Viscosity Low Viscosity

PMC® 746

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 No Scale Necessary
Low Viscosity Low Viscosity

PMC® 770, 780, and 790

Tough, Rigid, Industrial Rubber

PMC® 770, 780, and 790

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 Gram Scale Required PMC® 770
Industrial Grade Industrial Grade
Low Viscosity 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®-724 20 mins 16 hrs 40 A
 PMC®-744 15 mins 16 hrs 44 A
 PMC®-746 15 mins 16 hrs 60 A
 PMC®-770 30 mins 16 hrs 70 A
 PMC®-780 DRY 25 mins 48 hrs 80 A
 PMC®-790 20 mins 48 hrs 90 A
 PMC®-121 30/WET 30 mins 16 hrs 30 A
 PMC®-121 50/WET 30 mins 16 hrs 50 A
 PMC®-780 WET 25 mins 48 hrs 80 A

VIDEOS and GALLERIES

Step-by-Step How-To Articles

video

Making a One Piece Urethane Block Mold

Making a One Piece Urethane Block Mold

How to build a mold box, measure, mix, and pour urethane rubber to make a 1-piece block mold.

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video

How to Use a Concrete Stamp

How to Use a Concrete Stamp

Project: Replace existing service entrance with a decorative concrete walkway.

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Beeskep II Candle Operation Running with Smooth-On Rubber

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.

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video

Making a Concrete Stamp Using Urethane Rubber

Making a Concrete Stamp Using Urethane Rubber

Project goal: transform a disused service entrance into an inviting stamped concrete walkway.

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How To Make a Urethane Rubber Mold of Prop Gun

How To Make a Urethane Rubber Mold of Prop Gun

A cavity pour style urethane rubber mold for casting prop guns.

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What Have Other People Done With These Products?

PMC®-746 Urethane Rubber Used to Make Production Furniture Molds

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.

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Atlantis Theme Park Hotel and Resort

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.

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Duplicating Bellevue Hospital's Landmark Icon

Duplicating Bellevue Hospital's Landmark Icon

MJM Studios called upon Smooth-On mold rubbers to make a mold of the entire arch

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Finishing daVinci's Unfinished Masterpiece

Finishing daVinci's Unfinished Masterpiece

In an elaborate studio setting in the hills of Pennsylvania, history is in the making – again.

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A Glowing Success Story In Wax Casting

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.

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The 'Royal Assault Team 357' Robot

The 'Royal Assault Team 357' Robot

Assisting School Age Kids To Excel In Science Competition With Smooth-On Materials

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Sculptor James Day Expresses His Visionary Realism

Sculptor James Day Expresses His Visionary Realism

James uses PMC®-744, OOMOO® 30 and Mold Max® 30 rubber

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