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Liquid Plastic

Casting Compound	A:B MIX RATIO	POT LIFE (MIN.)	DEMOLD TIME +	ULTIMATE SHORE HARDNESS	TENSILE STRENGTH (PSI)	COMPRESSIVE STRENGTH (PSI)	COLOR	BUY NOW
URETHANES
Smooth- Cast 300	1:1 by volume	3	10 min.	70D	3000	4500	White	Call
Smooth Cast 305	1:1 by volume	7	30 min.	70D	3000	4500	White	Call
Smooth Cast 310	1:1 by volume	20	2-4 hours	70D	2600	4500	White	Call
Smooth Cast 320	1:1 by volume	3	10 min	70D	3100	4500	Off- White	Call
Smooth Cast 321	1:1 by volume	7	30 min	70D	3100	4500	Off- White	Call
Smooth Cast 322	1:1 by volume	20	4 hours	70D	3100	4500	Off- White	CALL
Smooth Cast 325 Colormatch	1:1 by volume	3	10 min.	72D	3170	4500	Clear Amber	Call
Smooth Cast 326 Colormatch	1:1 by volume	7	60 min.	72D	3170	4500	Clear Amber	Call
Smooth Cast 327 Colormatch	1:1 by volume	20	90 min.	72D	3170	4500	Clear Amber	CALL
Smooth Cast 383	1:5 by weight	7	45 min.	85D	3100	8500	Off- White	CALL
Smooth Cast 385	1:5 by weight	20	8 hours	85D	3100	8500	Off- White	Call
C-1508	26:100 by weight	20	16 hours	85D	6200	11200	Gray	Call
Crystal Clear 200	1:1 by volume	20	16 hours	80D	2500	2208	Clear	CALL
Crystal Clear 202	1:1 by volume	9	90 min.	80D	2500	2208	Clear	Call
Crystal Clear 204	1:1 by volume	120	48 hours	80D	2500	2208	Clear	CALL
Crystal Clear 206	1:1 by volume	120	48 hours	80D	2500	2208	Clear	CALL
Crystal Clear 220	100A:75B by Weight	22	4 hours	85D	8190	N/A	Clear	CALL

Multi-Purpose Urethane Casting Resins

SC-300 Series * SC-320 Series * SC-Colormatch™ Series

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

SC-300, SC-305 and SC-310 – the lowest viscosity of any casting resins available. They literally pour like water and yield castings that are bright white and virtually bubble-free. They 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.

SC-320, SC-321 and SC-322 – lower cost version of SC 300 Series. Off-white in color.

Casting Compound	A:B MIX RATIO	POT LIFE	DEMOLD TIME +	Viscosity	ULTIMATE SHORE HARDNESS	TENSILE STRENGTH (PSI)	COMPRESSIVE STRENGTH (PSI)	Shrinkage in./in.	Volume cu.in/lb	Color	Info. Sheet
EpoxAcast 650 Fast*	100A:12B pbw	20 min	1 hrs.	7,000 cps	90D	6000 psi	16,350 psi	.002	18.3	Off- White	Info
EpoxAcast 655 Fast*	100A:10B pbw	30 min	3 hrs.	23,000 cps	90D	4,810 psi	12,500 psi	.002	16.7	Grey	Info
EpoxAcast 670 HT	100A:16B pbw	3 hrs	24 hrs	12,000 cps	90D	4,500 psi	13,000 psi	.006	20.5	Off-White	Info
EpoxAcast 690 Clear	100A:30B pbw	5 hrs	24 hrs	200 cps	80D	6,630 psi	9,610 psi	.001	25	Clear	Info

EpoxAmite 101 Fast	100A:24B pbw	11 min	6-8 hrs	1,000	84D	7,930 psi	11,550 psi	N/A	24.5l	Clear Yellow	Info
EpoxAmite 102 Med	100A:29B pbw	22 min	10-15 hrs	650 cps	80D	8,180 psi	10,970 psi	N/A	25	Clear Yellow	Info
EpoxAmite 103 Slow	100A:28.5B pbw	55 min	24 hrs	650 cps	80D	7,910 psi	10,500 psi	N/A	25.2	Clear Yellow	Info
EpoxAcoat Red	100A:15B pbw	20 min	16 hrs	Paste	85D	26,000 psi	24,000 psi	.00015	18.5	Red	Info
Free Form Epoxy Putty	1A:1B pbv	Varies	24 hrs	Dough	50D	N/A	N/A	N/A	61.6	Grey	Info

*Also compatible with Medium and Slow speed catalyst. 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. They are also widely used for electrical encapsulation & bonding applications. Consult technical bulletins for complete details. Most of the epoxies can be used with the fast, medium or slow catalyst. EpoxAcast 650 is a mineral filled general purpose epoxy. It can be used for dies, metal stamping, patterns and electronic encapsulation. EpoxAcast 655 (was A-30) Aluminum Filled – Non-settling, low viscosity with low overall shrinkage. It is used in making vacuum forming dies, injection molds, and foundry patterns. EpoxAcast 670 HT (was 20-136 HT) 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). EpoxAcast 690 Clear casting epoxy is ideal for making jewelry or lenses for car kits. 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

Semi-Rigid

Casting Compound	Mix Ratio	Pot Life	Demold Time	Shore A Hardness	Tensile Strenght	Compressive Strenght	Color	Call to place order
C-1509 (now Task 11)	1:1 pbw	15 min	16 hrs	60D	2750	N/A	Off-white	Call
C-1515 (now Task 13)	100:120 pbw	3 min	20 min	50D	1800	N/A	Black	Call
C-1520 (now Task 14)	100:120 pbw	10 min	45 min	50D	1800	N/A	Black	Call
45D	1:1 pbv	5 min	20 min	45D	1500	N/A	Amber	Call
60D	1.5:1 pbv	3 min	10 min	60D	1800	N/A	Amber	Call
61D	1.5:1 pbv	7 min	60 min	60D	1800	N/A	Amber	Call

C-1509- Has some flexibility, is strong and very tough. Originally developed for high inpact 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).

C-1515- A soft semi-rigid plastic that offers a fast cure ans demold time. C-1515 is flexible enough to be used as fast setting mold material or for quick model duplication . Cured casting exhibits good heat and chemical resistance.

C-1520- Is essentially the same material as C-1515, but offers a longer pot life and demold time.

45D, 60D, & 61D- Are Semi-Rigid urethane cating resins that cure quickly and offer excellent impact resistance. These plastics are easy to use and have low viscosities for minimal bubble entrapment. Vibrant color are also possible by adding So-Strong color tints. These semi-rigid plastics are virtually unbreakable and offer exceptional abrasion resistance.

Applications:

Fast Mold Impressions
Abrasion Resistant Liner
Vibration Dampening Pads
Machinery Base Pads/ Gears
Fast Cast Models
High Impact Tooling
Cutting Table Tops
Metal Bonding/ Coating
Roller Facing
Fast Concrete Stamping Pad
Foundry Patterns