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    79 Products

    Casting Compounds

    Image of ProductInUse. Front orientation. Casting Compounds.
    Capture intricate details when creating prototypes, molds, and linings with these easy-to-mix two-part compounds. This urethane rubber is water and abrasion resistant.
    View our selection of release agents.
    Hardness
    Time to Harden,
    min.
    Time to
    Cure, hr.
    Time to
    Demold, hr.
    Cure Temp.,
    ° F
    Max. Temp.,
    ° F
    Shrinkage
    Color
    Mixing
    Req.
    Volume,
    cu. in.
    Wt.,
    lb.
    Each
    Urethane Rubber
     
    Soft
    Durometer 20A151685771800.1%BlackYes2510000000000000
    Durometer 20A151685771800.1%BlackYes250100000000000000
     
    Hard
    Durometer 40A151685771800.1%BlackYes251000000000000
    Durometer 40A151685771800.1%BlackYes250100000000000000
    Durometer 60A151682771800.1%BlackYes251000000000000
    Durometer 60A151682771800.1%BlackYes250100000000000000
    Durometer 80A151683771800.1%BlackYes60.25000000000000
    Durometer 80A151683771800.1%BlackYes251000000000000
    Durometer 80A151683771800.1%BlackYes250100000000000000
    Durometer 94A151682771800.1%BlackYes251000000000000
    Durometer 94A151682771800.1%BlackYes250100000000000000
    Durometer 60D151682771800.1%BlackYes251000000000000
    Durometer 60D151682771800.1%BlackYes250100000000000000
    Durometer 75D151682771800.1%BlackYes2510000000000000
    Durometer 75D151682771800.1%BlackYes2501000000000000000
    Durometer 85D521.5771800.1%GreenYes80500000000000
    Durometer 85D521.5771800.1%GreenYes32020000000000000
     

    Quick-Set Casting Compounds

    Image of ProductInUse. Front orientation. Casting Compounds.
    Create detailed rubber shapes that are ready to use in fifteen minutes or less. Unlike traditional casting compounds, which can take up to 24 hours to set, these compounds harden after two minutes, and can be removed from molds within fifteen. Use them to make your own prototypes, molds, and linings.
    Casting Compounds
    Image of ProductInUse. Front orientation. Casting Compounds. Casting Compounds, Acrylic Plastic.

    Acrylic Plastic

    Image of ProductInUse. Front orientation. Casting Compounds. Casting Compounds, Silicone Rubber.

    Silicone Rubber

    Soft—Soft silicone rubber is more flexible and easier to peel off of molds than hard silicone rubber, especially when making complex shapes.
    Hard— Hard silicone rubber holds its shape better than soft silicone rubber, so small ridges and channels are less likely to collapse or deform while making molds.
    69° F Cure Temperature—Combine acrylic plastic or silicone rubber with a 69° cure temperature compounds in different ratios to adjust the consistency from thin to thick. Thin mixtures are easier to pour and better for filling small crevices.
    70° F Cure Temperature—Silicone rubber with a 70° cure temperature compounds are a putty that you can mix with your hands and form into any shape. Press an object into these compounds to create a mold for casting duplicates. They do not shrink as they dry, so textures and other fine details are captured faithfully.
    Hardness
    Time to Harden,
    min.
    Time to
    Cure, min.
    Time to Demold,
    min.
    Cure Temp.,
    ° F
    Max. Temp.,
    ° F
    Shrinkage
    Color
    Mixing
    Req.
    Volume,
    cu. in.
    Wt.,
    lb.
    Each
    Acrylic Plastic
     
    Hard
    Durometer 85D21111693500%Light BlueYes20100000000000000
    Durometer 85D21111693500%Light BlueYes6230000000000000
     
    Silicone Rubber
     
    Soft
    Durometer 27A21515706500%Light BlueYes40.2000000000000
    Durometer 27A21515706500%Light BlueYes462.20000000000000
    Durometer 30A21010692500%GreenYes80.5000000000000
    Durometer 30A21010692500%GreenYes231.10000000000000
     
    Hard
    Durometer 40A21515706000%GreenYes40.2000000000000
    Durometer 40A21515706000%GreenYes462.20000000000000
    Durometer 50A21010692500%Light BlueYes130.80000000000000
    Durometer 50A21010692500%Light BlueYes321.750000000000000
     
    Casting Compounds with Dispensing Gun
    Image of ProductInUse. Front orientation. Casting Compounds. Casting Compounds with Dispensing Gun.
    Compounds with dispensing gun come ready to use—no mixing required—and won’t leave a mess.
    Hard— Hard silicone rubber holds its shape better than soft silicone rubber, so small ridges and channels are less likely to collapse or deform while making molds.
    Soft—Soft silicone rubber is more flexible and easier to peel off of molds than hard silicone rubber, especially when making complex shapes.
    69° F Cure Temperature—Combine acrylic plastic or silicone rubber with a 69° cure temperature compounds in different ratios to adjust the consistency from thin to thick. Thin mixtures are easier to pour and better for filling small crevices.
    Hardness
    Rating
    Hardness
    Time to Harden,
    min.
    Time to
    Cure
    Time to
    Demold
    Cure Temp.,
    ° F
    Max. Temp.,
    ° F
    Shrinkage
    Color
    Mixing
    Req.
    Wt.,
    lb.
    Includes
    Each
    Silicone Rubber
    SoftDurometer 30A210 min.10 min.692500%GreenNo4Carrying Case, Six each 3 cu. in. Disposable Cartridges00000000000000
    Soft
    Hard
    Durometer 30A
    Durometer 55A
    210 min.
    6 min.
    10 min.
    6 min.
    692500%Green
    Orange
    No4Carrying Case, Six each 3 cu. in. Disposable Cartridges0000000000000
    HardDurometer 55A26 min.6 min.692500%OrangeNo415 Disposable Nozzles, 2 Snap-On Nozzles, Carrying Case, Six each 3 cu. in. Disposable Cartridges0000000000000
     

    See-Through Casting Compounds

    Image of ProductInUse. Front orientation. Casting Compounds.
    Create transparent molds to monitor fill levels, differentiate parts at a glance, and avoid damaging parts when cutting the mold away. These casting compounds are two parts that activate when mixed.
    View our selection of release agents.
    Urethane Rubber—Urethane rubber compounds are tougher than silicone rubber compounds, so your molds will last longer. Although not required, curing urethane rubber molds inside a vacuum chamber improves their clarity. By removing trapped air bubbles, the chamber prevents the finished mold from looking speckled.
    Silicone Rubber—Silicone rubber compounds handle higher temperatures than urethane rubber compounds—up to 570° F. Silicone rubber also cures faster than urethane rubber, and it won't shrink as it cures, which means you won't need to guess at the final size of your mold. Because silicone rubber compounds trap air bubbles when mixed, they must be cured inside a vacuum chamber. The chamber removes the trapped air bubbles, strengthens the mold, and improves its clarity.
    Hardness
    Time to Harden,
    min.
    Time to
    Cure
    Time to
    Demold
    Cure
    Temp.
    Max. Temp.,
    ° F
    Shrinkage
    Color
    Mixing
    Req.
    Volume,
    cu. in.
    Wt.,
    lb.
    Each
    Urethane Rubber
     
    Hard
    Durometer 40A6144 hr.2 hr.77° F1800.8%ClearYes25100000000000000
    Durometer 60A6144 hr.2 hr.77° F1800.8%ClearYes2510000000000000
    Durometer 80A6144 hr.2 hr.77° F1800.8%ClearYes251000000000000
    Durometer 75D6144 hr.2 hr.77° F1800.8%ClearYes251000000000000
     
    Silicone Rubber
     
    Hard
    Durometer 40A101.5 hr.
    30 min.
    1.5 hr.
    30 min.
    77° F
    120° F
    5700%BlueYes572.20000000000000
     

    Easy-Form Casting Compounds

    Image of ProductInUse. Front orientation. Casting Compounds.
    Combine the liquid components to form a putty that can be molded into or around any shape. Use these compounds to capture intricate details when creating prototypes, molds, and linings.
    View our selection of release agents.
    Hardness
    Time to Harden,
    min.
    Time to
    Cure, hr.
    Time to
    Demold, hr.
    Cure Temp.,
    ° F
    Max. Temp.,
    ° F
    Shrinkage
    Color
    Mixing
    Req.
    Volume,
    cu. in.
    Wt.,
    lb.
    Each
    Urethane Rubber
     
    Hard
    Durometer 60A15168375180Not RatedDark GrayYes2510000000000000
    Durometer 60A15168375180Not RatedDark GrayYes10040000000000000
    Durometer 85A15168375180Not RatedBlackYes251000000000000
    Durometer 85A15168375180Not RatedBlackYes10040000000000000
    Durometer 60D15168375180Not RatedDark GrayYes2510000000000000
    Durometer 60D15168375180Not RatedDark GrayYes100400000000000000
     

    Fine-Detail Casting Compounds

    Image of ProductInUse. Front orientation. Casting Compounds.
    Replicate even the most complex details when creating prototypes, molds, and linings. This easy-to-mix two-part compound flows smoothly into crevices. Cast up to 1/2" in thickness at a time.
    View our selection of release agents.
    Hardness
    Time to Harden,
    min.
    Time to
    Cure, hr.
    Time to
    Demold, hr.
    Cure Temp.,
    ° F
    Max. Temp.,
    ° F
    Shrinkage
    Color
    Mixing
    Req.
    Volume,
    cu. in.
    Wt.,
    lb.
    Each
    Urethane Rubber
     
    Hard
    Durometer 80D201684721340.3%WhiteYes4920000000000000
    Durometer 80D201684721340.3%WhiteYes3951600000000000000
     

    Machinable Casting Compounds

    Image of ProductInUse. Front orientation. Casting Compounds.
    After these compounds cure, they're tough enough to be machined. They are easy-to-mix two-part compounds that capture intricate details when creating prototypes, molds, and linings.
    View our selection of release agents.
    Hardness
    Time to Harden,
    min.
    Time to
    Cure, hr.
    Time to Demold,
    min.
    Cure Temp.,
    ° F
    Max. Temp.,
    ° F
    Shrinkage
    Color
    Mixing
    Req.
    Volume,
    cu. in.
    Wt.,
    lb.
    Each
    Aluminum-Filled Urethane
     
    Hard
    Durometer 84D616890721301.5%GrayYes72 1/25000000000000000
    Durometer 84D616890721301.5%GrayYes2902000000000000000
     

    High-Temperature Casting Compounds

    Image of ProductInUse. Front orientation. Casting Compounds.
    Capture intricate details when creating prototypes, molds, and linings with these easy-to-mix compounds.
    View our selection of release agents.
    Aluminum Oxide—Aluminum oxide is high strength.
    High-Purity Aluminum Oxide Ceramic—High-purity aluminum oxide ceramic resists shrinking in casts, has a low level of contamination, and is a strong electrical insulator. It’s often used for constructing furnaces and handling liquid metal.
    Silicon Carbide—Silicon carbide has a high heat transfer rate, making it ideal for use in metal casting molds. It has the added benefit of excellent erosion and oxidation resistance.
    Silica—Silica withstands rapid changes in temperature without cracking and has a low rate of thermal expansion.
    Zirconium Oxide—Zirconium oxide is often used in metal handling applications. In addition to its high temperature resistance, it’s also chemical resistant.
    Time to Harden,
    min.
    Time to
    Cure, hr.
    Time to
    Demold, hr.
    Cure Temp.,
    ° F
    Max. Temp.,
    ° F
    Shrinkage
    Color
    Mixing
    Req.
    Volume,
    cu. in.
    Wt.,
    lb.
    Each
    Aluminum Oxide
    202424773,0001%WhiteYes3840000000000000
    202424773,0001%WhiteYes96100000000000000
     
    High-Purity Aluminum Oxide Ceramic
    252424773,2001.3%WhiteYes98100000000000000
     
    Silicon Carbide
    202424772,7001.5%BlackYes474000000000000
    202424772,7001.5%BlackYes119100000000000000
     
    Silica
    202424772,7001.3%WhiteYes624000000000000
    202424772,7001.3%WhiteYes155100000000000000
     
    Zirconium Oxide
    202424774,0001%BeigeYes2740000000000000
    202424774,0001%BeigeYes69100000000000000
     

    Long-Life Casting Compounds

    Image of ProductInUse. Front orientation. Casting Compounds.
    Create rubber molds that retain their shape for decades—they won’t soften, degrade, or warp, so you can continue to replicate intricate parts. Because these compounds don’t shrink as they cure, they are more accurate and predictable than other compounds.
    View our selection of release agents.
    Hardness
    Time to Harden,
    min.
    Time to
    Cure, hr.
    Time to
    Demold, hr.
    Cure Temp.,
    ° F
    Max. Temp.,
    ° F
    Shrinkage
    Color
    Mixing
    Req.
    Volume,
    cu. in.
    Wt.,
    lb.
    Each
    Urethane Rubber
     
    Hard
    Durometer 45A602416772000%YellowYes582.200000000000000
     

    Food and Beverage Casting Compounds

    Image of ProductInUse. Front orientation. Casting Compounds.
    These food-grade compounds comply with FDA 21 CFR. They are easy-to-mix two-part compounds that capture intricate details when creating prototypes, molds, and linings.
    View our selection of release agents.
    Hardness
    Time to Harden,
    min.
    Time to
    Cure, hr.
    Time to
    Demold, hr.
    Cure Temp.,
    ° F
    Max. Temp.,
    ° F
    Shrinkage
    Color
    Mixing
    Req.
    Food Industry Std.
    Volume,
    cu. in.
    Wt.,
    lb.
    Each
    Urethane Rubber
     
    Hard
    Durometer 40A81221201805%WhiteYesFDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.16802510000000000000
    Durometer 60A81221201805%WhiteYesFDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.1680251000000000000
    Durometer 60A81221201805%WhiteYesFDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.1680250100000000000000
    Durometer 78A41221201805%WhiteYesFDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.1680251000000000000
    Durometer 88A41221201805%WhiteYesFDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.1680251000000000000
    Durometer 88A41221201805%WhiteYesFDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.1680250100000000000000
    Durometer 75D51221201805%WhiteYesFDA Compliant 21 CFR 175.105, FDA Compliant 21 CFR 177.1680251000000000000
     

    Chemical-Resistant Casting Compounds

    Image of ProductInUse. Front orientation. Casting Compounds.
    This silicone rubber compound offers good resistance to acids, oils and salt water. Use it to capture intricate details when creating prototypes, molds, and linings with this easy-to-mix two-part compound. It is a durable and tear-resistant silicone rubber, which easily demolds.
    View our selection of release agents.
    Hardness
    Time to Harden,
    min.
    Time to
    Cure, hr.
    Time to
    Demold, hr.
    Cure Temp.,
    ° F
    Max. Temp.,
    ° F
    Shrinkage
    Color
    Mixing
    Req.
    Volume,
    cu. in.
    Wt.,
    lb.
    Each
    Silicone Rubber
     
    Hard
    Durometer 65A1202416784000%BlueYes2210000000000000
    Durometer 65A1202416784000%BlueYes242110000000000000
     

    Foam Casting Compounds

    Image of ProductInUse. Compound expands to fill every hole and cavity.. Front orientation. Casting Compounds. Foam Casting Compounds.
    Image of ProductInUse. Front orientation. Casting Compounds. Foam Casting Compounds.

    Compound expands

    to fill every

    hole and cavity.

    Create lightweight molds with these two-part compounds. They expand as foam after they’re poured to fill every cavity. The denser the foam, the less it will expand. Before casting, apply petroleum jelly (not included) to prevent sticking, stretching, and tearing. It won't cause the foam to collapse as it cures.
    Flexible—Flexible compounds cure into soft, open-cell foam, which absorbs water, air, and gases. They are often used to cast gaskets, cushions, and other bendable objects.
    Rigid—Rigid compounds form stiff, closed-cell foam, which prevents water and air from flowing through the part. Machinable, they’re dense enough to create prototype modeling blocks, so you can test setups without wearing down tools.
    Foam
    Expansion
    Density,
    lb/ft³
    Time to Harden,
    min.
    Time to
    Cure, min.
    Time to Demold,
    min.
    Cure Temp.,
    ° F
    Max. Temp.,
    ° F
    Shrinkage
    Color
    Mixing
    Req.
    Wt.,
    lb.
    Each
    Polyurethane Foam
     
    Image of Specification. Front orientation. White. Foam Casting Compounds.

    White

    Flexible—Not Machinable
    4X123252580125Not RatedWhiteYes300000000000000
    4X123252580125Not RatedWhiteYes120000000000000
    8X83252580125Not RatedWhiteYes30000000000000
    8X83252580125Not RatedWhiteYes120000000000000
    15X43252580125Not RatedWhiteYes30000000000000
    15X43252580125Not RatedWhiteYes120000000000000
     
    Image of Specification. Front orientation. Contains Border. Beige. Foam Casting Compounds.

    Beige

    Rigid—Machinable
    2X20315157585Not RatedBeigeYes160000000000000
    7X12315157585Not RatedBeigeYes40000000000000
    7X12315157585Not RatedBeigeYes160000000000000
    19X4315157585Not RatedBeigeYes40000000000000
    19X4315157585Not RatedBeigeYes160000000000000
     
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