G&S Dyes, sodium sulphate, 1.0 kg bag.

G&S Dyes, sodium sulphate, 1.0 kg bag. Also known as "Glauber Salt". This is to replace non-iodized salt for immersion, direct and batik dyeing with Procion "MX" dyes. Sodium Sulphate will greatly improve the brightness and yield of the finished product, especially with bright colours, (turquoise, yellow, fushia, etc).