Rubber Mold Compounds & Plastics
Liquid Plastic

LIQUID PLASTICS

INFORMATION BY SMOOTH-ONŠ

Data sheets are available on any of our products upon request by calling (518) 373-2843

Recognized as the world's largest resin casting, 10 tons of Crystal Clear resin were cast in a single pour to create "The Fourth Plinth" sculpture for London's Trafalgar Square.

Crystal Clear 220

Crystal Clear is water white clear heat cure resin system and made specifically for applications that require absolute clarity. This rigid urethane mold casting resin is a harder version of out popular Crystal Clear Series resins and cures to a Shore 85d. Cured castings are highly UV Resistant (resists yellowing due to ultra-violet light exposure) and are not brittle. Vibrant colors and color effects are achieved by adding pigment dispersions. Applications include encapsulation, making prototype models, lenses, sculpture reproductions, decorative cast pieces, jewelry, special effects and props. One project involved casting ten tons in one pouring for the London Plinth project.

CAUTION: NOT FOR HOME USE. THIS PRODUCT IS FOR INDUSTRIAL USE ONLY. Proper ventilation, a NIOSH Approved Respirator and Protective Clothing (gloves and long sleeves) 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.

Feather Lite

Feather Lite is a new heavily filled low-density urethane mold casting resin. Cured plastic is lightweight (it floats in water!) and has much lower density than other casting resins. Feather Lite features a convenient 1A : 1B by volume mix ratio and mixes easily (pre-mixing of parts A & B is necessary). Cured plastic is strong and can be carved, machined, drilled, sanded, etc. Feather Lite can be pigmented with SO Strong color tints prior to casting and finished castings can be painted.

And because this product is low-density, it yields more plastic per pound/kg. than other resins, the cost per casting is low.

Feather Lite can be used for a variety of art or industrial design related applications including reproducing sculpture, making fishing lures, prototype model making, casting doll heads and figures, etc.

TASK Series Plastics

TASK Plastics is a new generation of performance urethane mold casting resins that offer superior physical properties compared to out popular Smooth-Cast line of general purpose casting resins.

TASK Plastics feature convenient mix ratios, low viscosities, high tensile a flexural strength, as well as high flexural modulus. These plastics were formulated for a variety of industrial applications including pattern making, making prototype models and making high impact solid or rotational castings (TASK 15). TASK Plastics are moderately priced and are available in trial kits, one gallon, five gallon, 55 gallon drum and tote units.

URE-BONDtm II

URE-BONDtm II is a premium performance urethane adhesive compound that offers a strong flexible bond between many different surfaces. Industrial applications for this adhesive are endless because it is a superior bonding agent for adhering polyurethane rubber and other polymer products to many types of substrates (such as plaster, wood, cement, stone) and non-porous materials (such as glass, hard plastics and a variety of metals).

URE-BONDtm II has also been used to repair torn polyurethane molds on a limited basis (with proper surface preparation). Once mixed and applied, URE-BOND II takes about 12 minutes to cure and yields a strong, flexible bond.

Plasti-Pastetm

Plasti-Pastetm is a new two component fiber resin that is designed for vertical surface application. Part A is a liquid and Part B is a paste. Mix ratio is 1A : 3B by volume. It has no odor and pot life is 8 10 minutes depending on mass. Demold time (can be handled) is about 90 minutes depending on mass.

Plasti-Pastetm holds a vertical surface without sagging and cures to a strong, durable and lightweight plastic. Suitable as a mother mold / support shell (reinforces shape of rubber mold during casting), or as a laminating material. Can be pigmented with So-Strong color tints from Smooth-On. Add cabosil or other filler as an extender or for special effects.

CASTING COMPOUND	A:B MIX RATIO	POT LIFE (MIN.)	DEMOLD TIME +	ULTIMATE SHORE HARDNESS	TENSILE STRENGTH (PSI)	COMPRESSIVE STRENGTH (PSI)	COLOR
URETHANES
Smooth-Cast 300	1:1 by volume	3	10 min.	70D	3000	4500	White
Smooth-Cast 305	1:1 by volume	7	30 min.	70D	3000	4500	White
Smooth-Cast 310	1:1 by volume	20	2-4 hours	70D	2600	4500	White
Smooth-Cast 315UV Stable	1:1 by volume	5	60 min.	70D	2460	4500	White
Smooth-Cast 320	1:1 by volume	3	10 min.	70D	3100	4500	Off-White
Smooth-Cast 321	1:1 by volume	7	30 min.	70D	3100	4500	Off-White
Smooth-Cast 322	1:1 by volume	20	4 hrs.	70D	3100	4500	Off-White
Smooth-Cast 325 Colormatch(TM)	1:1 by volume	3	10 min.	72D	3170	4500	Clear Amber
Smooth-Cast 326 Colormatch(TM)	1:1 by volume	7	60 min.	72D	3170	4500	Clear Amber
Smooth-Cast 327 Colormatch(TM)	1:1 by volume	20	90 min.	72D	3170	4500	Clear Amber
Smooth-Cast 383	1:5 by weight	7	45	85D	3100	8500	Off- White
Smooth-Cast 385	1:5 by weight	20	8 hours	85D	3100	8500	Off- White
TASK 5	1:1 by volume	3	15 min.	80D	3900	4700	Tan
TASK 6	1:1 by volume	7	75 min.	80D	5200	5500	Tan
C-1508	26:100 by weight	20	16 hrs.	85D	6200	11200	Gray
C-1509*	1:1 by weight	15	16 hrs.	60D	2750	n/a	Off White
C-1515	100:120 by weight	3	20 min.	50D	1800	n/a	Black
C-1520	100:120 by weight	10	45 min.	50D	1800	n/a	Black
Crystal Clear 200	1:1 by volume	20	16 hrs.	80D	2500	2208	Clear
Crystal Clear 202	1:1 by volume	9	90 min	80D	2500	2208	Clear
Crystal Clear 204	1:1 by volume	120	48 hrs	80D	2500	2208	Clear
Crystal Clear 206	1:1 by volume	120	48 hrs	80D	2500	2208	Clear
Crystal Clear 220	100A:75B by wgt.	22	4 hrs.	85D	8190	N/A	Clear
Plasti-Paste	1:3 by volume	10	4 hrs	70D	N/A	N/A	Off- White
SMASH!(TM) Plastic	1:1 by volume	5	90 min.	80D	N/A	N/A	Clear
EEPOXIES ^ (below properties derived using Sonite 16 Hardener)
A-30 Aluminum Filled	100:8 by weight	90	16 hrs.	Barcol 80	3500	14000	Gray
Formula 20-136	100:15.5 by weight	90	16 hrs.	Barcol 55	4500	13000	Beige
CASTING COMPOUND	A:B MIX RATIO	POT LIFE (MIN.)	DEMOLD TIME +	ULTIMATE SHORE HARDNESS	TENSILE STRENGTH (PSI)	COMPRESSIVE STRENGTH (PSI)	COLOR

+ cure time can vary depending on mass
* suitable for some FDA/USDA applications - dry food contact only
^ properties will vary depending on hardener used

Multi-Purpose Urethane Casting Resins

SC-300 * SC-310 * C-1504 * C-1506

The Smooth-On family of multi-purpose urethane casting resins offers the user tremendous versatility and economy.

These products feature the convenience of a one to one mix ratio by volume - no scale is necessary. Very low viscosity ensures easy mixing, pouring and exact duplication of detail.

These urethane resins cure with negligible shrinkage to hard plastics that are tough, durable, machinable and paintable. They also resist moisture and mild solvents. Vibrant color and color effects are easily achieved by adding pigments.

Applications

Prototype Models/Parts	~	Plastic Mechanical Parts
Sculpture Reproductions	~	Architectural Models
Artistic Creations	~	Durable Miniatures & Toys
Special Effects	~	Theater Props
Cold Cast Bronze (Bonded Metal) Castings

NEW! SMOOTH-CAST 300 & 310 WHITE:

SC300 - Pot Life: 3 Min.	Demold 10 Min.
SC310 - Pot Life: 20 Min.	Demold 2 – 4 hours
Mix Ratio (Both): One to One By Volume
Shore D Hardness (Both): 70	Color: White

New From The Smooth-On Laboratory! SC-300 SC-300 and SC-310 have the lowest viscosity of any casting resins available. They literally pour like water and yield castings that are bright white and virtually bubble-free. Both have no odor and contain no solvents (low shrinkage factor). SC 300 is ideal for making fast castings and can be consistently foamed. SC 310 has a 20 min. pot life for applications requiring a longer cycle time.

C – 1504 & C - 1506:

C-1504 - Pot Life: 3 Min.	Demold: 15 Min.
C –1506 – Pot Life: 7 Min.	Demold: 60 Min.
Mix Ratio (Both): One To One By Volume
Shore D Hardness (Both): 80	Color: Tan

C-1504 and C-1506 have been used by artists and industry for years. They are harder plastics that offer slightly better physical properties than the SMOOTH-CAST products, making these products the performing alternatives of the multi-purpose rigids.

C - 1508:

Pot Life: 20 Min.	Demold: 16 Hrs.
Mix Ratio: 26A To 100B By Weight
Shore D Hardness : 88	Color: Gray

C-1508 is our hardest and most durable urethane plastic. Originally developed to make vacuum forming molds, C-1508 is aluminum filled (looks like aluminum) and can be cast in thick sections with negligible shrinkage. Fully cured C-1508 can be machined (drilled, sawed, sanded, filed, tapped, etc.) and painted.

Applications

Vacuum Forming Molds	~	Tracing Patterns
High Impact Tooling	~	Load Bearing Parts
Plastic Mechanical Parts	~	Decorative Objects
Encapsulation	~	Base Pads

C - 1509:

Pot Life: 15 Min.	Demold: 16 Hrs.
Mix Ratio: 100A To 100B By Weight
Shore D Hardness : 60	Color: Opaque-White

C-1509 is a semi-rigid plastic (has some flexibility) that is strong and very tough. Originally developed for high impact tooling (drop hammer punch), C-1509 also offers good abrasion and chemical resistance. This product is suitable for some FDA/USDA applications - dry food contact only.

Applications

FDA/USDA Machine/Processing Components
Abrasion Resistant Parts/Liners	~	Foundry Patterns
Roller Facings & Casters	~	Cutting Table Tops
Metal Bonding/Coating	~	Machinery Base Pads/Gears

C - 1511:

Pot Life: 20 Min.	Demold: 16 Hrs.
Mix Ratio: 100A To 100B By Weight
Shore D Hardness : 80	Color: Ivory

C-1511 is a truly unique casting resin that is very strong when cast in Ultra-Thin sections - 0.03" to 0.50" (0.075cm to 1.27cm).

C-1511 has very low viscosity and negligible shrinkage. Vibrant colors are possible by adding color pigments. This plastic has become a favorite of prototype and design professionals throughout the world.

Applications

Prototype Models	~	Model Toys
Architectural Models	~	Durable Miniatures
Ultra-Thin Mechanical Plastic Parts

C –1515 & C -1520:

C-1515 - Pot Life: 3 Min.	Demold: 20 Min.
C –1520 – Pot Life: 10 Min.	Demold: 45 Min.
Mix Ratio (Both): 100A to 120B by Weight
Shore D Hardness (Both): 95	Color: Black

C-1515 is a soft semi-rigid plastic that offers a fast cure and demold time. C-1515 is flexible enough to be used as a fast setting mold material or for quick model duplication. Cured castings exhibit good heat and chemical resistance. C-1520 is essentially the same material, but offers a longer pot life and demold time.

Applications

Fast Mold Impressions	~	Fast Cast Models
Abrasion Resistant Liners	~	High Impact Tooling
Special Effects	~	Vibration Dampening Pads

Crystal Clear 200:

Pot Life: 15 Min.	Demold: Overnight
Mix Ratio: 100A To 90B By Weight
Shore D Hardness : 80	Color: Crystal Clear

Crystal Clear 200 is for applications that require absolute clarity. It is a low viscosity system that cures at room temperature with negligible shrinkage to a hard plastic. Cured castings are water white clear, UV stable and will not yellow over time. Vibrant or tint colors are achieved with color pigments. CC200 has a Shore 50A flexible counterpart: 64-2 Clear Flex.

Applications

Special Effect Models & Props.	~	Sculpture Castings
Decorative Jewelry/Miniatures	~	Acrylic Substitute
Potting / Encapsulation	~	Imitation Glass/ Ice
Surface Laminations	~	Architectural Models

Epoxy Casting Compounds

Smooth-On Epoxy Casting Compounds are suitable for a variety of industrial applications. Epoxy Compounds are harder than our urethane plastics and offer superior resistance to impact, abrasion and heat distortion. Used in conjunction with an appropriate hardener (Sonite 01, 03, 07, 08, 11, 16 hardeners), different properties are attainable. Consult technical bulletins for complete details.

A - 3 Aluminum Filled - Heavily filled to improve heat transfer and provide good machinability.

A - 30 Aluminum Filled - Non-settling, low viscosity with low overall shrinkage.

#20-136 Mineral Filled - Superior heat resistance, low viscosity, readily degasses itself. Can be used as a high temperature epoxy adhesive. (Resists temperatures up to 350 F / 177 C)

Applications

Vacuum Form Molds	~	Forming Dies
Foundry Patterns	~	Fixtures
Industrial Gears	~	Hard Rollers
Encapsulation	~	Base Pads
Core Box Liners	~	High Impact Models/Special Effects Props
Tracing Patterns For Pantagraph And Deckel Modeling Machines

Information & Accessories

~ URE-FIL™ Fillers - low cost, lightweight fillers that are easily dispersed in most Smooth-On resins to attain different finishes and effects. Acts as an extender - lowers the cost of each casting.

~ Mold Release Agents - Aerosol and non-aerosol releases made especially for mold making and casting.

~ SO-Cure™ Accelerator - Accelerates the cure time of most Smooth-On plastic compounds.

~ SO-Flex™ Universal Flexibilizer - Available to soften most Smooth-On rubber and plastic compounds.

~ URE-BOND™ Adhesive - for permanently bonding a variety of materials or repairing torn urethane molds.

~ Color Pigments - For vibrant colors or special color effects, these pigments are concentrated (a little goes a long way) and can be used with our rigid or flexible compounds.

~ XTEND-IT™ Dry Gas Blanket - Significantly extends the shelf life of unused polyurethane products after container has been opened.

Ask About Our Silicone, Urethane & Polysulfide Rubbers!

The most complete line of liquid rubber compounds available anywhere in the world. Ideal for a variety of industrial and art related projects. Available in a range of Shore A hardnesses from a sponge-like "00" to a harder-than-a-car-tire 90A. Good for making both pourable and brush-on molds, these products are easy to use (many are mixed 1:1 by volume - no scale necessary) and will last/perform in production.

Mold Making Applications For:

Industrial Applications For:

Sculpture/Art Bronze Wax	Ornamental Concrete	Special Effects	Concrete Forms
Architectural Restoration	Pre-Cast Concrete	Gaskets	Concrete Stamping Pads
Ceramic Case/Block	Casting Plaster & Portland Cements	Industrial Rollers	Bonding Various Materials
Rotocasting	Casting Polyester & Other Resins	Encapsulation	Vibration/Shock Pads
Restoring Picture Frames	Taxidermy