EASE OF APPLICATION:
Characteristics of a paint or sealant that facilitate its application, e.g., spatter resistance, lapping properties, and open time.

EFFLORESCENCE:
Whitish powder (salt deposits) that sometimes appears on masonry surfaces; it is carried to the surface by moisture.

LOW SHEEN:
An interior paint that has a low lustre, sheen-like appearance. Its gloss level is between flat and sheen.

ELASTICITY:
The ability of paint or sealant to expand and contract with the substrate without suffering damage or changes in its appearance. Expansion and contraction are usually caused by temperature and humidity fluctuations.

EMULSION:
A mixture (usually milky-white) in which one liquid is dispersed (but not dissolved) in another. An acrylic paint or sealant binder is often referred to as an emulsion, even though it is a dispersion of solid polymer particles in a liquid (water). In Europe, acrylic paints are often referred to as "emulsion paints."

ENAMEL:
Technically, an enamel is a coloured varnish, or high gloss paint. Generally, the term is used for high quality, dirt-resistant paints (generally for interior use) that may have a sheen level from semigloss to glossy. These coatings are used for more demanding applications as in kitchens, bathrooms, etc.

ENVIRONMENTAL PROTECTION AGENCY (EPA):
An agency of the federal government that has the responsibility of protecting the environment.

EPOXY:
A tough, water-resistant and chemical-resistant polymer or coating, adhesive or patching material made with this type polymer; usually made with two components blended at time of application. For more information, see EPOXY in the FAQ section.

EXTENDER:
A low-hiding, inexpensive pigment that fills out and extends the high-hiding and coloured pigments' capabilities, provides bulk to the paint, and can positively or negatively have an impact on many properties. Some common extenders are clay, calcium carbonate, and silica.