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Buy Smooth-On at FormX

Smooth-On is one of the worlds leading manufaturers 3D modeling materials such as mold-making, casting and special effects materials but also industrial casting resins, adhesives and equipment. FormX is main distributor of Smooth-On products in Europe.

Fillers for resins.

URE‑FIL® fillers disperse easily in Smooth-On materials. They can be added in different proportions to achieve a variety of working properties and effects. Some fillers are designed for cost-savings, others are designed for specific casting effects or improved physical properties. Other URE‑FIL® fillers are designed specifically for thickening materials for brush-on or trowelable application.

› URE-FIL® 3 Ceramic Filler to Reduce Cost of Casting
› URE-FIL® 5 Filler for Creating a Wood-Grain Effect
› URE-FIL® 7 Urethane Filler for Dimensional Stability
› URE-FIL® 9 Fumed-Silica Based Thickening Agent
› URE-FIL® 11 Fiber Filler for Urethane and Silicone
› URE-FIL® 15 Micro-Balloons to Reduce Casting Weight


Urefil Fillers

  • Urefil /250gr

    Urefil filler 0,3 gr/cm3 - Pot 250 grams, for liquid plastics

    2,66 EUR

  • Urefil /2kg

    Urefil filler 0,3 gr/cm3 - bucket 2 kg/4 lbs for liquid plastics

    12,23 EUR

  • Urefil /6kg

    Urefil filler 0,3 gr/cm3 - bucket 6 kg/12 lbs for liquid plastics

    38,48 EUR

  • Urefil 3 /1,36kg

    White ceramic filler - bucket 1,36 kgs.

    41,84 EUR

  • Urefil 5 /1,36kg

    Urefil wood simulating filler

    26,20 EUR

  • Ure-Fil 7 /3,5kg

    Urefil 7 is a flame retardent filler for liquid plastics. 3,5 kgs. container

    89,96 EUR

  • Urefil 11 /0,45kg

    Extruded short fiber thickener for brush-on applications

    52,01 EUR

  • Urefil 15 /0.32kg

    micro balloons

    31,06 EUR


Urefil Fillers

Use Less Resin, Lower Cost. Ceramic filler which is added to urethane resins and castable epoxies to reduce cost. Recommended starting mix ratio is 1A to 1B to 1 part URE‑FIL® 3.

The best choice for creating a wood grain effect. Note: your mold must reflect the wood grain pattern of the original model. Mix 1 part filler with 1A:1B of Smooth‑Cast® 320 resin and cast into mold. After demold, apply wood stain or shoe polish to casting surface to bring out wood grain effect.

Improves dimensional stability in urethane resins and castable epoxies. Ofen added to materials to make them flame-resistant. URE‑FIL® 7 can be mixed with Smooth‑Cast® 325 and SO‑Strong® color tints to create marble effects. Recommended maximum mix ratio is 1A:1B to 2 parts filler. A mix ratio of 1A:1B to 3 parts filler will make the plastic trowelable, but the cured plastic will also be brittle.

Fumed‑silica based thickening agent primarily used with liquid urethane and silicone rubbers for brush‑on moldmaking applications. URE‑FIL® 9 is added in small amounts to the mixed rubber until the desired viscosity is achieved. URE‑FIL® 9 can also be added to liquid urethane resins to create casting effects and to thicken the material for trowelable casting applications.

Fiber‑based filler that can be added to Smooth‑On urethane and silicone rubbers, urethane plastics and epoxies to thicken for brush‑on applications. URE‑FIL® 11 can be used with all Smooth‑On silicones, including those which do not respond to THI‑VEX® such as Ecoflex® 00‑30 and Mold Max® 40.

Micro‑balloons that can be added to Smooth‑On urethane plastics and epoxies to create very light weight castings. Castings which float on water can be created by using proper proportions of URE‑FIL® 15. A casting resin filled with a large proportion of URE‑FIL® 15 can be described as a ‘syntactic foam’, non‑expanding foams which are stiffer, stronger and more water resistant than water‑blown expanding urethane foams of the same density.

Technical bulletin Ure-Fil Fillers


Let us help you find your way.

The list below may help you find what you are looking for via an alternative path.

Help me choose

  • Casting

    a wide range of flexible and rigid casting materials.

  • Composites

    resins, poyester, epoxy, acrylic resin, glass fibres etc.

  • Cosplay

    Products to make your own Cosplay Costumes and Props!

  • Foam

    expanding flexible and rigid foams, rigid blocks.

  • Molding

    flexible and rigid molding for all sorts of objects.

  • Prototyping

    resins and other materials used for rapid prototyping.

  • Restoration

    restoring in- and exterior ornaments and buildings.

  • Special Properties

  • Textile

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