Silicone Additives

Silicone Additives

Accessories commonly used with Rebound™ silicones.

Please note that these silicones can only be poured and cannot be thickened for brush applications. Casting is very simple as the viscosity of these silicones is very low.

  • Plat-Cat™

    Plat-Cat™

    Buy Smooth-On at FormX Smooth-On is one of the world’s leading manufacturers of 3D modeling materials such as mold-making, casting and special effects materials, as well as industrial casting r... more

  • SLO-JO™

    SLO-JO™

    Buy Smooth-On at FormX Smooth-On is one of the world’s leading manufacturers of 3D modeling materials such as mold-making, casting and special effects materials, as well as industrial casting r... more

  • Slacker™

    Slacker™

    Buy Smooth-On at FormX Smooth-On is one of the world’s leading manufacturers of 3D modeling materials such as mold-making, casting and special effects materials, as well as industrial casting r... more

  • THI-VEX™

    THI-VEX™

    Buy Smooth-On at FormX Smooth-On is one of the world’s leading manufacturers of 3D modeling materials such as mold-making, casting and special effects materials, as well as industrial casting r... more

  • Silicone Thinner™

    Silicone Thinner™

    Buy Smooth-On at FormX Smooth-On is one of the world’s leading manufacturers of 3D modeling materials such as mold-making, casting and special effects materials, as well as industrial casting r... more

  • NOVOCS™ Matte

    NOVOCS™ Matte

    Buy Smooth-On at FormX Smooth-On is one of the world’s leading manufacturers of 3D modeling materials such as mold-making, casting and special effects materials, as well as industrial casting r... more

  • NOVOCS™ Gloss

    NOVOCS™ Gloss

    Buy Smooth-On at FormX Smooth-On is one of the world’s leading manufacturers of 3D modeling materials such as mold-making, casting and special effects materials, as well as industrial casting r... more

  • Accel-T™

    Accel-T™

    Buy Smooth-On at FormX Smooth-On is one of the world’s leading manufacturers of 3D modeling materials such as mold-making, casting and special effects materials, as well as industrial casting r... more

  • SLIDE™ STD

    SLIDE™ STD

    Buy Smooth-On at FormX Smooth-On is one of the world’s leading manufacturers of 3D modeling materials such as mold-making, casting and special effects materials, as well as industrial casting r... more

  • Silthix

    Silthix

    Thickener for tin and platinum silicone rubbers. A few percent change a liquid silicone in a pasty or brushable mass. Products Silthix ... € 5.80 Buy now ... more

  • Inhibit-X

    Inhibit-X

    Buy Smooth-On at FormX Smooth-On is one of the world’s leading manufacturers of 3D modeling materials such as mold-making, casting and special effects materials, as well as industrial casting r... more

  • Power Mesh

    Power Mesh

    “Power Mesh is an 80% Nylon/20% Spandex blend typically used to reinforce silicone prosthetics or for fixing tears in silicone. This material is a 4 way stretch material so it will move with th... more

Why buy at FormX?

  • Dedication to Materials

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    For over thirty years we have sought out the highest quality modelling, moulding and casting materials from around the world.

  • Inspiring + Unique

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    From silicones and resins to Jesmonite and special effects materials — a curated range for professionals, artists and makers.

  • Expert Advice

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    Our sales team is widely known for their knowledge and dedication, supporting you in mould making, casting, sculpture and prototyping.

  • Shipping Across Europe

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    We ship from our warehouses in Amsterdam, Barcelona and Madrid to customers throughout Europe, from Greece up to Norway.

  • Amsterdam Original

    Amsterdam Original icon

    Founded in Amsterdam, FormX grew from a local art foundry into a major European supplier — with our roots firmly in the city.

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