Water-based, clear anti-fray agent which is used on ribbon and stumpwork shapes to prevent fraying.
This kind of anti-fray is available from your nearest machine embroidery shop or haberdashery store under different brand names.
Note: In the workshops at Koala Conventions in Brisbane, I noticed that their anti-fray agent was very thick and that it made the petals of the roses too stiff. The anti-fray agent that we use is water-based, whereas theirs was solvent-based. Do look out for the water-based anti-fray which has the same likeness to water and check that it dries clear.