Galvanized
A ferrous metal that is covered with zinc to protect it from rusting.
Glazing
Glass, such as that used in doors and windows.
Glazing Compound
A caulk, sealant, or putty that is used to seal a glass pane into its frame.
Gloss
The shininess or reflectiveness of a coating. Flat paints have no gloss; high gloss paints have very noticeable gloss.
Gloss Retention
The ability of a coating to maintain its gloss – pertains especially to semi-gloss and gloss exterior coatings.
Grain
The direction, size, arrangement or appearance of the fibers in wood or veneer.
Grain Cracking
Cracking of a coating, parallel to the grain of the wood substance.
Grain Raising
The swelling and standing up of short, broken fibers of wood caused by absorption of a liquid. Water is particularly inclined to cause this.
Gypsum
Natural crystalline calcium sulfate used as an extender pigment in paint, and in the manufacture of gypsum wallboard and plaster of Paris.