Re-Coat Time
Interval required between the application of successive coats of paint. This time period is usually listed on the label.
Reducer
Material that lowers a paint’s viscosity but is not necessarily a solvent. (See Diluent.)
Reflectance
The ratio of the light that radiates onto a surface to the amount that is reflected back.
Related Colors
Two colors that are next to each other on the color wheel.
Resin
A natural or synthetic material utilized as the binder for a paint or caulk. Term used generally for oil-based or latex binders, as “alkyd resin” or “acrylic resin.”
Rust
The reddish, brittle oxide formed on iron or its alloys. It is a result of exposure to air and humidity or chemicals