Extra heavy gels have a thick and stiff consistency, the thickest of the Golden gels.

GOLDEN Gel Mediums offer artists many ways to build texture. They range in consistency from pourable to moldable with varying degrees of sheen and transparency. They can be used to create glazes, extend paints and change finishes. Some gels incorporate pumice, glass or acrylic granules that impart unique reflective, rough or absorbent surface qualities.
Gels can be thought of as colorless paint, as they are composed of 100 percent acrylic polymers similar to acrylic paint. They can also act as adhesives in collage and mixed media that dry to form continuous films with excellent flexibility with chemical, water and UV resistance.

Please note - Golden place a high priority on the health and safety of the artists studio and materials. They feel the artists should be aware of any potential hazards so Golden far surpass the required quantity of health and safety advice on their labels. Their products are not more dangerous, just more fully labelled.