Properties of lubricating greases that are observed visually when handling grease. Texture is described in the following terms:
Brittle – Has a tendency to rupture or crumble when compressed
Buttery – Separates in short peaks with no visible fibers.
Long Fibers – Shows tendency to stretch or string out into a single bundle of fibers.
Resilient- Capable of withstanding moderate compression without permanent deformation or rupture.
Short Fibers – Shows short break-off with evidence of fibers.
Stringy – Stretching into long fine threads, but with no visible evidence of fiber structure.
Tacky – Having adhesiveness, especially to metal surfaces. Greases containing polymers tend to be tacky.
Other terms, such as Smooth, Rough, Grainy, etc., are defined under Bulk Appearance.