The TrueCast rubber mold making products combine high strength and durability with easy to use mixing at room temperature.  Our urethane molding rubbers provide the highest tensile and tear strength in the industry. TrueCast is available in 11 different Shore A hardness to perfectly suit your mold making needs. Please see chart below to select the best rubber for your mold making project.

 

TrueCast Series Videos:

TrueCast Rubber Mold Making Products
TrueCast Rubber Mold Making Products
Video demonstration of rubber mold making procedure and construction of mold box.
TrueCast Rubber Mold Making Part 2
TrueCast Rubber Mold Making Part 2
Video of pourable urethane rubber mold making and mold box construction.


The TrueCast products are easy to use, simply mix the A and B components together and pour. Within minutes TrueCast begins to cure into a flexible mold or durable rubber part casting. If you are making high production rubber molds for concrete or cast stone we recommend making your molds from (40 Shore A) to (65 Shore A) hardness rubber. If you are unsure of the correct hardness for your project you may request a cured sample block for evaluation. Please fill in our contact form (in the sidebar) and tell us which products you would like to receive more information about and/or samples.

Rubber molds are an easy low cost method of manufacturing a variety of concrete and plaster display items as well as industrial wheels, bumpers and seals. A rubber mold is constructed by pouring TrueCast around an existing piece of art, a clay master or industrial part, which has been coated with molding release agent. Within hours the TrueCast molding material can be removed from the master.  The finished mold can be filled with a variety of casting materials to make hard or flexible parts. We offer 11 different hardness of molding compounds ranging from Shore 0 A to Shore 90 A. Our softer molding compounds are used to create molds of irregular shaped objects with deep undercuts. Harder TrueCast molding products are used for casting more abrasive concrete or masonry products as well as durable rubber parts. TrueCast products are listed below in order of increasing hardness beginning with our softest GTS-00 and ending with our most rigid GTS-90. The TrueCast molding rubbers can also used as coatings over flexible foams and for casting solid rubber parts like bumpers, gaskets, seals or rubber wall displays.

View the Product Comparison Chart

 

TrueCast 00

TrueCast 00 is a two component urethane elastomer that is specifically formulated to mold high elongation soft parts or pads that absorb impact or vibration. Once cured, TrueCast 00 forms a soft yet tough polymer that is ideally suited for soft molding for plaster, sound damping speaker pads or life like artificial skin parts.

TrueCast 10

TrueCast 10 is a versatile, two component liquid castable polyurethane elastomer. TrueCast 10 combines high strength with low shore A hardness and low residual surface tack. TrueCast 10 is insensitive to typical environmental moisture, has low viscosity, high strength and low durometer.

TrueCast 20

TrueCast 20 is a versatile, two component, low viscosity liquid castable polyurethane elastomer. TrueCast 20 combines high strength and elongation with excellent chemical resistance to create durable flexible molds or parts.

TrueCast 20 Translucent

TrueCast 20 Translucent is a versatile, two component liquid castable polyurethane elastomer. TrueCast 20 Translucent combines high strength and elongation with excellent chemical resistance to create durable flexible molds or parts. TrueCast 20 Translucent is tough with high tear strength and low viscosity.

TrueCast 30

TrueCast 30 is a versatile, two component, low viscosity liquid castable polyurethane elastomer. TrueCast 30 combines high strength, low durometer and elongation with excellent chemical resistance to create durable flexible molds or parts.

 

TrueCast 40

TrueCast 40 is a versatile, two component liquid castable polyurethane elastomer. TrueCast 40 combines high strength and elongation with excellent chemical resistance to create durable flexible molds or parts.

TrueCast 40 Translucent

TrueCast 40 Translucent is a versatile, two component liquid castable polyurethane elastomer. TrueCast 40 Translucent combines high strength and elongation with excellent chemical resistance to create durable flexible molds or parts.

TrueCast 50

TrueCast 50 is a versatile, two component liquid castable polyurethane elastomer. It combines high strength elongation with excellent chemical resistance to create durable, flexible molds and parts. It is insensitive to typical environmental moisture, has low viscosity, high strength and low residual surface tack.

 

TrueCast 55

TrueCast 55 is a versatile, two component liquid castable polyurethane elastomer. TrueCast 55 combines high strength and elongation with excellent chemical resistance to create durable flexible molds or parts. It is insensitive to typical environmental moisture, has high strength and low viscosity.

TrueCast 55-Slow

TrueCast 55 Slow is a versatile, two component liquid castable polyurethane elastomer. TrueCast 55 Slow combines high strength and elongation with excellent chemical resistance to create durable flexible molds or parts. It is insensitive to typical environmental moisture, has high strength and low viscosity.

TrueCast 65

TrueCast 65 is a versatile two component liquid castable polyurethane elastomer. TrueCast 65 combines high strength and elongation with excellent chemical resistance to create durable flexible molds or parts. It is insensitive to typical environmental moisture, has high strength and low viscosity.

TrueCast 65-Slow

TrueCast 65-Slow is a versatile two component liquid castable polyurethane elastomer. TrueCast 65-Slow combines high strength and elongation with excellent chemical resistance to create durable flexible molds or parts. It is insensitive to typical environmental moisture, has high strength and low viscosity.

TrueCast 70

TrueCast 70 is a versatile, two component liquid castable polyurethane elastomer. TrueCast 70 combines high strength and durability with easy processing at room temperature. TrueCast 70 can be used for casting urethane parts or flexible molds.

TrueCast 70-Slow

TrueCast 70-Slow is a versatile, two component liquid castable polyurethane elastomer. TrueCast 70-Slow combines high strength and durability with easy processing at room temperature. TrueCast 70-Slow can be used for casting urethane parts or flexible molds.

TrueCast 85F

TrueCast 85F is a versatile, two component liquid castable polyurethane elastomer. TrueCast 85F combines high strength and durability with easy processing at room temperature. TrueCast 85F can be used for casting urethane parts or flexible molds.

TrueCast 85F-Slow

TrueCast 85F-Slow is a versatile, two component liquid castable polyurethane elastomer. TrueCast 85F-Slow combines high strength and durability with easy processing at room temperature. TrueCast 85F-Slow can be used for casting urethane parts or flexible molds.

TrueCast 90

TrueCast 90 is a versatile, two component liquid castable polyurethane elastomer. TrueCast 90 combines high strength and elongation with excellent chemical resistance to create durable flexible molds or parts. TrueCast 90 is insensitive to typical environmental moisture and sets rapidly.

TrueCast 360

TrueCast 360 is a versatile, two component liquid castable polyurethane elastomer. Individual components are colored for visually determining complete mixing. TrueCast 360 can be used for rapid production of parts or molds with excellent physical properties.

TrueCast XL 650-D

TrueCast XL 650-D is a low viscosity rapid setting urethane compound polymer with high strength and durometer. The rapid cure properties of TrueCast XL 650-D allows rapid demold. Low viscosity and 1:1 by volume ratio makes for easy hand mixing and application. TrueCast XL 650-D will fully cure at room temperature (72° F) does not require heating for processing or post curing.

TrueCast XL 7500

TrueCast XL 7500 is a low viscosity rapid setting urethane compound polymer with high strength and durometer. The rapid cure properties of TrueCast XL 7500 allows rapid demold. Low viscosity and 1:1 by volume ratio makes for easy hand mixing and application. TrueCast XL 7500 will fully cure at room temperature (72° F) does not require heating for processing or post curing.

TrueCast XL-8500

TrueCast XL-8500 is a low viscosity rapid setting urethane compound polymer with high strength and durometer. The rapid cure properties of TrueCast XL-8500 allows rapid demold. Low viscosity and 1:1 by volume ratio makes for easy hand mixing and application. TrueCast XL-8500 will fully cure at room temperature (72°F) does not require heating for processing or post curing.

TrueCast XL-9500

TrueCast XL-9500 is a low viscosity rapid setting urethane compound polymer with high strength and durometer. The rapid cure properties of TrueCast XL-9500 allows rapid demold. Low viscosity and 1:1 by volume ratio makes for easy hand mixing and application. TrueCast XL-9500 will fully cure at room temperature (72° F) does not require heating for processing or post curing.

 

TrueCast Series: Product Comparison

TrueCast Product Comparisons Chart

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