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Urethane Liquid Rubber For Moldmaking And Casting

VytaFlex® Urethane Rubber - For Perfect Concrete Castings

Using Smooth-On's exclusive "V-Polymer" technology, VytaFlex^® urethane rubbers offer superior physical and performance properties. VytaFlex^® urethanes feature convenient one-to-one by volume mix ratios. Vacuum degassing is not necessary and VytaFlex^® rubbers cure with negligible shrinkage to a durable rubber that will last in production.

VytaFlex^® mold rubbers are used for a variety of applications including making molds to reproduce sculpture and architectural elements, as well as for making special effects, toys and prototypes. Vibrant colors can be achieved by adding So-Strong^® Color Tints, available from Smooth-On.

VytaFlex^® mold rubbers work especially well for casting pigmented / colored concrete. Molds made with VytaFlex^® Series urethanes will render accurate and uniform colored castings.

VytaFlex^® 10 - Shore 10A hardness
VytaFlex^® 20 - Shore 20A hardness
VytaFlex^® 30 - Shore 30A hardness
VytaFlex^® 40 - Shore 40A hardness
VytaFlex^® 50 - Shore 50A hardness
VytaFlex^®60 - Shore 60A hardness

ReoFlex® - 'Next Generation' Urethane Rubber

ReoFlex^® urethane rubbers are "next generation" products to our popular PMC-121^® Series and offer superior physical and performance properties. ReoFlex^® urethanes feature convenient one-to-one by volume mix ratios. Vacuum degassing is not necessary and ReoFlex^® rubbers cure with negligible shrinkage to a durable rubber that will last in production.

ReoFlex^® mold rubbers are used for a variety of applications including making molds to reproduce sculpture and architectural elements, as well as for making special effects, toys and prototypes. These rubbers will meet the stringent demands of production casting of wax, plasters, concrete and resins.

ReoFlex^® 20 - Shore 20A hardness
ReoFlex^® 30 - Shore 30A hardness
ReoFlex^® 40 - Shore 40A hardness
ReoFlex^® 50 - Shore 50A hardness
ReoFlex^® 60 - Shore 60A hardness

PMC® -121 - Easy To Use Urethane Rubber

The PMC^®-121 Series urethane rubbers feature convenient one-to-one by volume mix ratios. PMC^®-121/30 Dry and PMC^®-121/30 Wet are exceptionally strong and abrasion resistant for soft urethane mold rubbers. These rubbers will meet the stringent demands of production casting of wax, plasters, concrete, resins and epoxies. Vibrant colors can be achieved by adding So-Strong^® Color Tints, available from Smooth-On.

The dry version does not exude an oil and can be used for casting waxes, Smooth-On liquid plastics, gypsum plasters and other materials. The wet version contains a built-in release agent to aid in demolding hard plasters and concrete. PMC^®-121/50 is a "wet-only" mold rubber that is long lasting and durable when used in a variety of applications including reproduction of ornamental plaster, precast concrete and ceramic case molds.

PMC^® 121-30 DRY and PMC^® 121-30 WET - Shore 30A hardness
PMC^® 121-50 WET - Shore 50A hardness

PMC® 724 Urethane Rubber - PUTS YOU IN CONTROL!

Used by artists and industry the world over for a variety of design, casting and special effects applications, PMC^®-724 is by far the most versatile liquid rubber compound available on the market today. It is inexpensive, mixes and pours easily, and will cure to a durable rubber with negligible shrinkage. Typical applications include reproducing sculpture, creating special effects, making fiberglass panel & part molds, on-site architectural restoration and new construction molds.

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.

Important: This rubber will last and perform in production, often for hundreds of castings (depending on what you are casting into the mold). It also exhibits good physical properties and chemical resistance. But PMC^®-724 does not have a long "library life". Molds will soften and revert to a liquid within 2 - 5 years, depending on exposure to moisture. Smooth-On makes many different mold rubbers that offer a very long library life.

PMC^®-724 - Shore 40A hardness

PMC® -746 Urethane Rubber Compound

PMC-746 was developed to make molds for casting gypsum plasters. Like PMC-744, this product is well suited for use as a rubber case mold – especially large case molds where extra rigidity is required. Shore hardness is 60 A. Because of its durability and moisture resistant properties PMC-746 is also used by zoos and museums for a variety of mold-making, display and exhibit applications. It features a convenient mix ratio (2:1 by weight or volume), and contains no mercury.

Other applications include making plaster block molds, reproducing ornamental plaster (architectural estoration), pre-cast concrete molds, casting waxes, Smooth-On rigid polyurethanes and epoxies and also for making a variety of special effects for movies and theatres.

PMC^®-746 - Shore 60A Hardness

PMC® 744 Urethane Rubber - For Strong, Durable Molds
PMC® 744 Urethane Rubber - For Strong, Durable Molds	PMC^®-744 has been 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. Low viscosity ensures fine detail reproduction. PMC^®-744 is ideal for making ceramic case molds and plaster block molds, reproducing ornamental plaster, making molds for casting concrete, casting a variety of Smooth-On urethane resins, casting wax and making a variety of mechanical rubber parts. PMC^®-744 - Shore 44A hardness

PMC® -780 Industrial Urethane Rubber Compound

PMC^®-780 Urethane Rubber - PMC^®-780 is a premium performance urethane rubber that offers exceptional strength, durability and abrasion resistance. Mixed two parts A to one part B by volume or weight, PMC^®-780 pours easily and cures at room temperature with negligible shrinkage.

Pick The One Best Suited For Your Application: Original PMC^®-780 Dry does not exude an oil. PMC-780 Wet contains a built-in release agent to aid in demolding concrete. Both are used around the world for casting abrasive materials such as concrete (pre-cast concrete, making concrete stamping pads, etc.) and gypsum plasters with high exotherms. PMC^®-780 Dry is also commonly used to make rubber mechanical parts of varying configurations (gaskets, wheels, pullies) as well as ball mill liners and vibration/shock pads.

PMC^®-780 DRY and PMC^®-780 WET - Shore 80A hardness

PMC® -790 Urethane - Tough, Rigid, Industrial Rubber Compound

PMC^®-790 Urethane Rubber - PMC^®-790 is an industrial urethane rubber compound designed to meet the most stringent requirements of industrial production applications. It is a very hard rubber that offers superior tear and tensile strength as well as impact and abrasion resistance.

PMC^®-790 is suitable for a variety of industrial applications including making concrete stamping pads, mold liners and molds for casting concrete. PMC^®-790 is also good for making ball mill liners, industrial rollers and belts, rubber mechanical parts.

PMC^®-790 - Shore 90A hardness

PMC®- 870 Urethane Rubber - For Production and Industrial Applications

PMC^®-870 is mixed two parts A to one part B by weight, PMC^®-870 pours easily and cures at room temperature to a solid Shore 70A rubber that has exceptional performance characteristics and dimensional stability.

It is suitable for production casting of abrasive materials such as concrete (pre-cast concrete, making concrete stamping pads, etc.) and gypsum plasters with high exotherms. It is also suitable for rubber mechanical parts of varying configurations (gaskets, wheels, pulleys) as well as ball mill liners and vibration/shock pads.

PMC^®-870 - Shore 70A hardness

Brush-On™ Series High Tear Strength Brushable Urethane Rubber

Smooth-On's Brush-On^TM Series of mold rubbers are extremely versatile and are famous for their abrasion resistance and high tear strength. They have the convenience of a one-to-one mix ratio and are easy to mix and apply with a brush or spatula. Brush-On^TM rubber paints onto vertical surfaces without sagging and will cure with negligible shrinkage to durable rubbers that perform and last in production. Each will capture exact detail from any original model.

Brush-On^TM40 is used for models with deep undercuts. Brush-On^TM 40 can be used to make glove molds. Brush-On^TM 50 and Brush-On^TM 60 possess superior abrasion resistance and tear strength and are ideal for casting concrete and hard plasters in applications where less flexibility is required. All three rubbers are suitable for reproducing sculpture, architectural restoration and production casting of concrete.

Brush-On^TM 35 Urethane Rubber is easy to mix and apply with a brush or spatula, paints onto vertical surfaces and will cure with negligible shrinkage to a durable rubber that performs in production. Applications for Brush-On^TM 35 include on-site architectural restoration molds, reproducing sculpture (lost wax process) and making special effects.

Brush-On^TM 35 - Shore 35A hardness
Brush-On^TM 40 - Shore 40A hardness
Brush-On^TM 50 - Shore 50A hardness
Brush-On^TM 60 - Shore 60A hardness

EZ~Mix® 40 - One To One Liquid Brushable Urethane Rubber

EZ~MIX^® 40 is a brushable polyurethane rubber mold compound that mixes and applies easily. Two liquids (Part A and Part B) are measured and combined in equal amounts by volume, no scale is necessary. After a few minutes of mixing, EZ~Mix^® 40 is ready to be applied to a vertical surface with a brush.

After a suitable thickness is attained with multiple layers, EZ~Mix^® 40 cures overnight with negligible shrinkage to a flexible, durable mold rubber. Following the application of a support shell, a rubber mold made with EZ~Mix 40 is suitable for casting a variety of materials including wax, gypsum, urethane/epoxy resins, concrete, etc.

EZ~MIX^® 40 - Shore 40A hardness

Clear Flex® UV Stable Clear Urethane Rubber

Clear Flex^® 50 and Clear Flex^® 95 are water white clear urethane liquid rubber compounds designed for applications that require absolute clarity and resistance to sunlight. Low viscosity ensures easy mixing and pouring. Clear Flex^® 50 and 95 cure at room temperature with negligible shrinkage.

Cured castings are clear, flexible and UV STABLE (will not yellow). Vibrant colors and color effects are achieved by adding pigments. Applications include making clear-cut molds, model reproductions, decorative cast pieces, special effects, prototype parts.

CAUTION: NOT FOR HOME USE. THIS PRODUCT IS FOR INDUSTRIAL USE ONLY. Proper ventilation, A NIOSH Approved Respirator and Protective Clothing are required to minimize the risk of inhalation and dermal sensitization. If breathing is affected or a dermal rash develops, immediately cease using this product and seek medical attention. Read MSDS before using.

Clear Flex^® 50 - Shore 50A hardness
Clear Flex^® 95 - Shore 95A hardness

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