How to make Roma Plastilina modeling clay

coloured clays image by Joe Houghton from Fotolia.com

Roma Plastilina is an oil-based modelling clay, similar to Plasticine, manufactured by the Spainsdh company, JOVI. Because it is easy to work oil-based clays into fine details, it is commonly used to help create moulds.

However, most people would know oil-based clays because of their use in stop-animation -- also known as "claymation" -- films and advertisements. This is because the oil content allows the clay to remain permanently malleable. While the quality of shop-bought oil-based clays is reliable, they are sometimes cost-prohibitive. If you are up for experimentation, you can use a simple recipe to create your very own version of the fine Roma Plastilina clay found in art supply shops.

Put the wax in a deep pot and heat until the temperature on the thermometer reaches 121 degrees C (250 degrees F).

  • Roma Plastilina is an oil-based modelling clay, similar to Plasticine, manufactured by the Spainsdh company, JOVI.
  • Because it is easy to work oil-based clays into fine details, it is commonly used to help create moulds.

Add the petroleum jelly and baby oil.

Add the powdered clay slowly and reduce the temperature until the thermometer reads 82.2 degrees C (180 degrees F).

Turn heat to low and stir every couple of hours for 6 or more hours.

Remove clay from the heat at 32.2 degrees C (90 degrees F).

Knead clay until smooth and store in an airtight container.

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