Fillers for synthetic resins, silicone, plaster & cement, colours

You can use fillers to thicken synthetic resins so that you can apply them with a spatula or work vertically with the masses. You can use fillers to make silicone moulds more stable so that they are less sensitive to pressure, but also less flexible. Or you can make your objects and moulds made of plaster, cement or synthetic resins lighter. Pigments are also fillers, but you will find them in a separate section. 

If you mix metal powder with synthetic resins as a filler, you can produce objects and sculptures that look very similar to real cast metal, but are very easy to produce without having to handle molten metals. Cold-cast objects can even be sanded and patinated.

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Which fillers are used for what?

For the cold moulding process: Synthetic resin + metal powder

To make silicone (pressure)stronger: silicone + Aerosil

To make moulds and objects easier: Fillite filler / hollow microspheres + polyester, acrylic, epoxy, polyurethane resin, silicone, plaster, concrete

To thicken synthetic resins (as an alternative to a thixotropic agent): Synthetic resin + talcum powder, Aerosil or Fillite

For thickening colours: depending on the type of colour, e.g. Aerosil or marble powder

To thicken adhesives: Adhesive + Aerosil

For making casting compounds e.g. for tiles: white cement + marble powder

For stabilising polyester or acrylic resin moulds: Synthetic resin + glass fibre short fibres

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