Darvan 7 is a deflocculant and acts as a thinning agent in slips and as a general dispersing agent for slip clay bodies and glazes. Similar action to that of sodium silicate, however Darvan 7 will not erode plaster molds. Used to enhance the fluidity of casting slips and maintain or slow the shrinkage rate. Darvan 7 is typically preferred with porcelains and high iron content clay.

Slips that are prepared with Darvan 7 show little tendency to thicken on standing, which is why it is often used in glazes. Darvan 7 can also be added to joining slip, which allows the use of less water and results in less shrinkage at attachment points.

See our Safety Data Sheets section under Customer Service for a downloadable copy of the SDS for this product.