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    22 Products

    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, 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
    Silicone Rubber
     
    Soft
    Durometer 27A21515706500%Light BlueYes40.28595K15000000
    Durometer 27A21515706500%Light BlueYes462.28595K14000000
    Durometer 30A21010692500%GreenYes80.55166N1400000
    Durometer 30A21010692500%GreenYes231.15166N15000000
     
    Hard
    Durometer 40A21515706000%GreenYes40.28595K1200000
    Durometer 40A21515706000%GreenYes462.28595K13000000
    Durometer 50A21010692500%Light BlueYes130.85166N16000000
    Durometer 50A21010692500%Light BlueYes321.755166N17000000
     
    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 Cartridges5166N130000000
    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 Cartridges5166N12000000
    HardDurometer 55A26 min.6 min.692500%OrangeNo415 Disposable Nozzles, 2 Snap-On Nozzles, Carrying Case, Six each 3 cu. in. Disposable Cartridges5166N11000000
     
    Replacements for Casting Compounds
    Replacement Nozzles
    Image of Product. Front orientation. Casting Compound Cartridge Nozzles.
    Nozzle
    Type
    Pkg.
    Qty.
    Pkg.
    Angled155166N21000000
    Straight155166N2200000
    Replacement Cartridges
    Image of Product. Front orientation. Casting Compound Dispensing Gun Cartridges.
    Color
    Volume,
    cu. in.
    Each
    Green35166N18000000
    Orange35166N1900000

    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.
    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
    Silicone Rubber
     
    Hard
    Durometer 40A101.5 hr.
    30 min.    		1.5 hr.
    30 min.    		77° F
    120° F    		5700%BlueYes572.28644K630000000
     

    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.
    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.
    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
    Silicon Carbide
    202424772,7001.5%BlackYes4748498K43000000
    202424772,7001.5%BlackYes119108498K13000000
     
    Silica
    202424772,7001.3%WhiteYes6248498K4100000
    202424772,7001.3%WhiteYes155108498K11000000
     

    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%BlueYes2218595K77000000
    Durometer 65A1202416784000%BlueYes242118595K11000000
     
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