Methocel is a synthetic, less expensive alternative to Carrageenan that provides a viscous surface for marbling on fabric and paper. It can also be used as a marbling medium.
8 oz/.23 kg(CHM1004) pictured
1 lb/.45 kg (CHM2004)
5 lb/2.3kg (CHM3004)
Stir 4 TBS Methocel into 1 gallon of warm tap water. Add 1 TBS of clear household ammonia, and stir until mixture is clear. (The ammonia will help the Methocel to dissolve.) For larger quantities, repeat procedure using same proportions. Fill marbling tray to about 1.5" deep and allow to rest for 30 minutes.