Alum salt fixes colour, waiting for the coating or the brush to be taken. Put 1 kg of alum salt for 10 kg of lime. Warning, it does not allow the hanging of the brush on a closed support.
Origin : Spain
Methylcellulose is used in the preparation of paints and whitewashes, as well as mortars or lime stuccoes. It is an adjuvant and a water retainer. It is also used as a resin for the manufacture of traditional gouaches as well as for the preparation of vinyl, acrylic and tempera colors.