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Urethane Plastic - Casting Resins For Any Application

Smooth-Cast® 300 Series Bright White Liquid Plastic
 Smooth-Cast® 300 Series Bright White Liquid Plastic
Smooth-Cast® 300 Series Bright White Liquid Plastic
Technical Bulletin
MSDS
The Smooth Cast® 300 Series of liquid plastics are ultra-low viscosity casting resins that yield castings that are bright white and virtually bubble free. Vacuum degassing is not necessary. They offer the convenience of a one to one mix ratio (one part A to one part B by volume). Fully cured castings are tough, durable, machinable and paintable. They resist moisture and mild solvents. Applications for Smooth-Cast® Liquid Plastics include reproducing small to medium size sculptures,making prototype models, roto cast pieces, and special effect props.
  • Smooth-Cast® 300Q - 4-5 minute demold time
  • Smooth-Cast® 300 - 10 minute demold time
  • Smooth-Cast® 305 - 30 minute demold time
  • Smooth-Cast® 310 - 2-4 hour demold time

Smooth-Cast® 320 Series Liquid Plastic - Easier To Pigment
 Smooth-Cast® 320 Series Liquid Plastic - Easier To Pigment
Smooth-Cast® 320 Series Liquid Plastic - Easier To Pigment
Technical Bulletin
MSDS
The Smooth Cast® 320 Series consists of new ultra-low viscosity/low cost casting resins that yield virtually bubble-free castings. Smooth Cast® 320 Series resins pigment better and are lower in cost. Applications for Smooth Cast® 320 Series resins include reproducing small to medium size sculptures, making prototype models, special effect props, decorative jewelry, etc. Easy to mix and pour, these resins offer the convenience of a one to one mix ratio (one Part A to one Part B by volume). Fully cured castings are tough, durable, machinable and paintable. They resist moisture and mild solvents.
  • Smooth-Cast® 320 - 10 minute demold time
  • Smooth-Cast® 321 - 30 minute demold time
  • Smooth-Cast® 322 - 2-4 hour demold time

Smooth-Cast® 325 Colormatch® For True Color Representation
 Smooth-Cast® 325 Colormatch™  For True Color Representation
Smooth-Cast® 325 Colormatch™ For True Color Representation
Technical Bulletin
MSDS
Smooth-Cast® ColorMatch® plastics are fast-cast resins that were developed specifically for adding color pigments and fillers to achieve true color representation or filler effect. The ColorMatch® Series is formulated "color neutral". Small amounts of pigment will yield accurate, vivid colors from cured castings (use of Smooth-On SO-Strong® pigments is highly recommended). Because of its neutral color, the ColorMatch® Series is ideal for creating marble and wood grain casting effects, or duplicating the look of real metal by adding bronze, brass or other metal powder (see Smooth-On technical bulletin for metal cold casting).
  • Smooth-Cast® 325 ColorMatch® - 10 minute demold time
  • Smooth-Cast® 326 ColorMatch® - 60 minute demold time
  • Smooth-Cast® 327 ColorMatch® - 2-4 hour demold time

Smooth-Cast® Semi-Rigid Urethane Casting Resins
 Smooth-Cast® Semi-Rigid Urethane Casting Resins
Smooth-Cast® Semi-Rigid Urethane Casting Resins
The Smooth-Cast® Semi-Rigid line of low-cost semi-rigid urethane casting resins cure quickly to semi-rigid plastics that offer excellent impact resistance. These plastics are easy-to-use (mix ratio is 1A:1B by volume) and have low viscosities for minimal bubble entrapment. Vibrant colors are possible by adding SO-Strong® color tints or Ignite® color pigments.

These semi-rigid plastics will really take a beating and offer exceptional abrasion resistance. They are good for making high-impact resistance tools, prototypes, abrasion resistant parts, foundry patterns, roller facings, vibration pads, fast concrete stamping pads, etc.

Smooth-Cast® 65D has a unique gradual cure profile that makes it ideal for rotational casting applications.
  • Smooth-Cast® 45D - 30 minute demold time
  • Smooth-Cast® 60D - 30 minute demold time
  • Smooth-Cast® 61D - 60 minute demold time
  • Smooth-Cast® 65D - 15 minute demold time
  • Smooth-Cast® 66D - 60 minute demold time
Technical Sheets - You Will Need Adobe Reader To View These Files
Smooth-Cast 45D
TB MSDS
Smooth-Cast 60D and 61D
TB MSDS  
Smooth-Cast 65D
TB MSDS  
Smooth-Cast 66D
TB MSDS  

Smooth-Cast® 380 - High Density Urethane Tooling Resin
 Smooth-Cast® 380 - High Density Urethane Tooling Resin
Smooth-Cast® 380 - High Density Urethane Tooling Resin
Technical Bulletin
MSDS
Smooth-Cast® 380 is a filled, high density casting resin formulated for a variety of tooling applications. This no-odor resin features a convenient 1A:1B mix ratio by volume, a 6 minute pot-life and cure time of about 60 minutes depending on mass and temperature.

Low viscosity ensures minimal bubble entrapment and long term shrinkage of cured resin is very low. Cured material is very strong and can be machined, drilled, sanded, etc. Color can be added with SO-Strong® color tints.

Smooth-Cast® 385 Mineral Filled Liquid Plastic
 Smooth-Cast® 385 Mineral Filled Liquid Plastic
Smooth-Cast® 385 Mineral Filled Liquid Plastic
Technical Bulletin
MSDS
Smooth-Cast® 385 is a mineral filled urethane casting resin that is very hard and durable. When Parts A and B are mixed in proper proportion (1A:5B by weight), the material cures at room temperature with virtually no shrinkage. Smooth-Cast® 385 has high compressive and flexural strength. Fully cured castings are tough, machinable and paintable. Color effects are possible by adding pigment dispersions. They resist moisture and mild solvents.
Smooth-Cast® 385 is ideal for making industrial production parts, foundry patterns, vacuum forming molds, and some ceramic applications.
  • Smooth-Cast® 385 - 2 hour demold time

Smooth-Cast® ONYX®
 Smooth-Cast® ONYX®
Smooth-Cast® ONYX®
Technical Bulletin
MSDS
Smooth-Cast ONYX® is a mercury-free urethane resin that cures at room temperature to a deep black, solid plastic.
ONYX® resins offer the convenience of a 1A:1B by volume mix ratio and have very low viscosities, so they are easy to mix and pour. ONYX® resins have an ultimate Shore hardness of 80D and offer higher physical properties and higher heat resistance vs. other general purpose resins. ONYX® resins are available in 2 speeds.

ONYX® FAST resin has a pot life of 2.5 minutes and a cure time of 10-15 minutes, while ONYX® SLOW has a pot life of 5 minutes and a cure time of 90 minutes.

Advantages that ONYX® resins offer over other resins;
1) if you desire a black casting, adding color pigment is not necessary 2) cured plastic is ultra-black and darker than competitive black resins, 3) cured ONYX® plastic can be polished and buffed to a high gloss shine and 4) ONYX® offers higher heat resistance vs. competitive black resins, 5) unlike other black resins, ONYX® does not contain mercury 6) ONYX® is less expensive vs. other black resins.

Applications include reproducing sculpture, making prototypes and potting / encapsulation. Due to it's quick cure time and hardness, ONYX® FAST is a good choice for creating fast cold cast bronze, brass, copper, nickel/silver, etc. effects.

Plasti-Paste® Trowelable Plastic
 Plasti-Paste™ Trowelable Plastic
Plasti-Paste™ Trowelable Plastic
Technical Bulletin
MSDS
Plasti-Paste® is a 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 (41A:100B by weight). 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-Paste® 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.

Plasti-Paste® II Trowelable Plastic
 Plasti-Paste® II Trowelable Plastic
Plasti-Paste® II Trowelable Plastic
Technical Bulletin
MSDS
New Plasti-Paste® II is a two component fiber-filled resin that is designed for vertical surface application. This no-odor formulation is an improved version of our original Plasti-Paste® formula, and the cured product is different in the following ways: 1. Cured plastic can be painted (original Plasti Paste® can not) and 2. It is harder, more rigid with better heat resistance.

Part A is a liquid and Part B is a paste. New Mix Ratio is 1A: 2B by volume (62A:100B by weight). Pot life is 10 minutes at room temperature depending on mass. Demold time (can be handled) is about 90 minutes at room temperature depending on mass. Full cure; 24 hours at room temperature. Cure time can be accelerated by applying heat.

Mixed material holds a vertical surface without sagging and cures to a strong, durable and lightweight plastic. Liquid material can be pigmented with So-Strong® color tints from Smooth-On. This plastic can be used for creating themed environments or special effects, used as a "mother mold" material to reinforce rubber molds and a variety of other applications. This plastic is also a powerful adhesive and can be used as a repair material for a variety of industrial applications. Cured plastic can be sanded, machined and painted with acrylic enamel paints.

Crystal Clear® Series - Optically Clear Liquid Plastic
 Crystal Clear® Series - Optically Clear Liquid Plastic
Crystal Clear® Series - Optically Clear Liquid Plastic
Technical Bulletin
MSDS
Crystal Clear® Series resins are water white clear and made specifically for applications that require absolute clarity. These rigid urethane casting resins differ only in working and demold times.Low viscosity ensures easy mixing and pouring. Crystal Clear® products cure at room temperature with negligible shrinkage. Cured castings are UV Resistant and are not brittle. Vibrant colors and color effects are achieved by adding SO-Strong® color tints. Applications include encapsulation, making prototype models, lenses, sculpture reproductions, decorative cast pieces, jewelry, prototype models, special effects and props. Heat curing is essential to realize full physical properties. Read the Technical Bulletin for full details.


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.

  • Crystal Clear® 202 - 90 min. cure time - for 1/16" - ½" thick castings
  • Crystal Clear® 200 - 16 hour cure time - for ½" - 3" thick castings
  • Crystal Clear® 204 - 48 hour cure time - for 3" - 6" thick castings
  • Crystal Clear® 206 - 5 day cure time - greater than 6" thick

  • Crystal Clear® 220 - MUST BE HEAT CURED - Click here to read CC220 Tech. Bulletin

Shell Shock® Brushable Liquid Plastic
 Shell Shock® Brushable Liquid Plastic
Shell Shock® Brushable Liquid Plastic
Technical Bulletin
MSDS
Shell Shock® FAST and Shell Shock® SLOW are thixotropic plastics that self -thicken when mixed and can be brushed onto a variety of surfaces or into rubber molds. When Parts A and B are mixed in proper proportion (1A:4B by volume or 1A:5B by weight), material cures at room temperature with virtually no shrinkage to a hard, durable plastic that exhibits good compressive and flexural strength. Fully cured castings are rigid and can be sanded, primed and painted. Color effects are possible by adding SO-Strong Color Tints. Shell Shock® is ideal for making fast, lightweight rigid molds for creating silicone appliances and effects (use as a replacement for gypsum molds). You can also brush a "gel coat" into a rubber mold and back it up with rigid foam, creating a highly detailed lightweight casting.

This product can also be brushed onto foams as an impact resistant coating that can be sanded, primed and painted (minimum 3/8" thickness recommended). Shell Shock® can also be used to make rigid support shells for brush on rubber molds.

Shell Shock® FAST working time is 3 minutes. Shell Shock® SLOW working time is 8 minutes.
  • Shell Shock® FAST - full cure 1 hour at 3/8" thickness
  • Shell Shock® SLOW - full cure 5 hours at 3/8" thickness

Simpact® 60A and 85A
 Simpact® 60A and 85A
Simpact® 60A and 85A
Technical Bulletin
Simpact® 60A and 85A urethanes are low odor, fast-setting urethane elastomers which offers very high tear strength, impact resistance and wear resistance. Simpact® urethanes are phthalate free, mercury free and MOCA free. Simpact® urethanes pour easily.

Working time is 4 minutes, handling time is 2 hours and full cure time is 48 hours at room temperature. Cured rubber has exceptional performance characteristics and dimensional stability.

Simpact® urethanes can be colored with SO-Strong® or Ignite® colorants. Simpact® urethanes are suitable for making impact resistant props, prototypes and display pieces.

Simpact® 60A

Simpact® 85A


Feather Lite® Liquid Plastic - It Floats In Water!
 Feather Lite® Liquid Plastic - It Floats In Water!
Feather Lite® Liquid Plastic - It Floats In Water!
Technical Bulletin
MSDS
Feather Lite® is a heavily filled low-density urethane casting resin. Cured plastic is lightweight (it floats in water!) and has a 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 casting 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, and many more applications.
  • Feather Lite® - 2 hour demold time

SMASH!® Breakaway Plastic
 SMASH!® Breakaway Plastic
SMASH!® Breakaway Plastic
Technical Bulletin
MSDS
SMASH!® Plastic is a new urethane liquid plastic designed to shatter/crumble on impact ("breakaway glass"). SMASH!® is water clear and, once fully cured, shatters like glass. It can be cast solid in thin sections to make window panes or rotationally cast to form hollow bottles, jars or other glass-like objects to be used as breakable props for movie and stage productions. Maximum recommended thickness is 1/8" (0.33 cm.).
SMASH!® is a room temperature cure system that is easy to use - mixed 1A: 1B by volume (1 cup + 1 cup). Low viscosity ensures easy mixing and pouring. Cured castings are UV RESISTANT. Vibrant colors and color effects are achieved by adding pigment dispersions.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.
  • SMASH!® Plastic - 90 minute demold time - can be broken after 6 hours

TASK® Series Liquid Plastics - Performance Casting Resins
 TASK® Series Liquid Plastics - Performance Casting Resins
TASK® Series Liquid Plastics - Performance Casting Resins
TASK® Plastics are a new generation of performance urethane casting resins that offer superior physical properties compared to our popular Smooth-Cast line of general purpose casting resins. TASK® Plastics feature convenient mix ratios by volume (pbv) or weight (pbw), low viscosities, high tensile and flexural strength, as well as high flexural modulus. These resins are designed for casting in thicknesses up to ½" (1.27 cm).


TASK Performance Resins
TASK® 2 & 3 High strength, low viscosity button_icon_tbbutton_icon_msds
TASK® 4 Very strong in thin walled sections button_icon_tbbutton_icon_msds
TASK® 5 Lowest cost performance plastics anywhere button_icon_tbbutton_icon_msds
TASK® 6 button_icon_tbbutton_icon_msds
TASK® 7 Flame rated - fire resistant urethane resin button_icon_tbbutton_icon_msds
TASK® 8 Heat resistant urethane plastic button_icon_tbbutton_icon_msds
TASK® 9 COLORMATCH Neutral amber for color matching and pigmenting button_icon_tbbutton_icon_msds
TASK® 11 Semi-rigid resin - dry food applications button_icon_tbbutton_icon_msds
TASK® 12 Virtually indestructible - highest impact resistance button_icon_tbbutton_icon_msds
TASK® 13 & 14 Black semi-rigid urethane casting resins button_icon_tbbutton_icon_msds
TASK® 15 For machine rotocasting - high impact resistance button_icon_tbbutton_icon_msds
TASK® 16 Fast-setting Shore 80A/30D semi-rigid urethane casting resin that offers very high tear strength, impact resistance and wear resistance. button_icon_tbbutton_icon_msds
TASK® 18 Aluminum filled mass casting resin button_icon_tbbutton_icon_msds
TASK® 21 Customers have used to approximate ABS plastic properties for some applications NOTE-TASK® 21 CAN NOT be cast into platinum silicone molds. button_icon_tbbutton_icon_msds

C-1508® Aluminum Filled Ultra-Rigid Casting Resin
 C-1508® Aluminum Filled Ultra-Rigid Casting Resin
C-1508® Aluminum Filled Ultra-Rigid Casting Resin
Technical Bulletin
MSDS
namechange_404
C-1508® is now TASK® 18, part of the TASK® series of liquid plastics
Click Here To Be Redirected To The TASK® Page


C-1509® Semi-Rigid Liquid Plastic - High Impact Resistance
 C-1509® Semi-Rigid Liquid Plastic - High Impact Resistance
C-1509® Semi-Rigid Liquid Plastic - High Impact Resistance
Technical Bulletin
MSDS
namechange_404
C-1509® is now TASK® 11, part of the TASK® series of liquid plastics
Click Here To Be Redirected To The TASK® Page

C-1515® and C-1520® Semi-Rigid Liquid Plastics
 C-1515® and C-1520® Semi-Rigid Liquid Plastics
C-1515® and C-1520® Semi-Rigid Liquid Plastics
Technical Bulletin
MSDS
namechange_404
C-1515® and C-1520® are now TASK® 13 and Task® 14, part of the TASK® series of liquid plastics
Click Here To Be Redirected To The TASK® Page

Smooth-On, Inc. Copyright © 2011
2000 Saint John Street, Easton PA 18042 | Order Desk: 800.762.0744 | Fax: 610.252.6200 | Tech Help: 800.381.1733 or 484.546.0466

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