It is an alginate thickener made from carrageenan moss or seaweed.
Carrageen moss marbling.
Of all the steps involved preperation of the size is the most important as without the right size the colours simply will not float that being said there has been numerous types of sizes that were used throughout the history of marbling including but not limited to carrageenan gum tracaganth and most.
With 100 gsm of pure carrageen moss you can obtain 6 litres of ready marbling bath.
You can use more or less depending on the thickeness of the paste you require.
The solution on which the colors are floated is referred to as the size the size can be made of several different types of gel or gum but the finest and most detailed marbling must be done on carrageenan size carrageenan is an extract from a seaweed called irish moss.
Carrageen or irish moss is a type of red alga which releases a sort of jelly like thing called mulicage when boiled in water.
Preparing for marbling is an art in its own right one that requires a strict precision.
The finest and most detailed marbling must be done on carrageenan size a half pound bag contains enough carrageenan to produce over 300 9 x12 papers new 2 from 26 50 free shipping.
The ancient art of paper marbling uses carrageenan mixture on which to float paints.
For larger quantities repeat using same proportions.
The very best moss i have found.
The paper is then laid on it absorbing the colors.
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Is available from ireland details of this contact are given at the end of this book.
Carrageenan is the preferred thickener for marbling.
For use as the thickened base for marbling inks 100g makes approximately 8 10 litres of marbling base depending on the viscosity required.
In a blender slowly add the carrageenan to 3 cups 0 71 l warm water and blend until fully dispersed.
Pour mixture into a bucket add enough water to make a total of 1 gal 3 79 l and stir.
Dissolves in warm water avoids the necessity for cooking and straining.
4 teaspoons 19 g carrageenan to 1 gal 3 79 l water.
Also alum used to be.
Now it used to be prepared by taking the dried moss and boiling it for up to half an hour with borax and hot water the modern marbler need not suffer this as a extract of carrageen moss is readily avalible.
Recommended proportions for marbling.
Used for thickening water in the process of marbling paper.
I experienced quite a few problems obtaining good materials for marbling carrageen moss is available in powered form but i had no success with it however others swear by it.
The powdered extract of carrageenan moss.