Radiation Cure
Curing a coating by means of exposure to electromagnetic waves or particles such as infrared or ultra violet, or electron beam.
Ratio
Relationship in quantity or size between 2 things.
Reciprocator
Device used to move automatic guns in a vertical plane. A reversing or reciprocating drive system provides motion.
Reclaim
The process used to recycle non-deposited powder through the gun for reuse (after mixing and sieving).
Reclaim Powder
Powder that has been oversprayed and collected for reuse.
Recoat
The process of refinishing parts that have a surface defect from the first coat. Application of a second coat after correction of the defect in the first coating.
Recovery
The process of removing non-deposited powder from air prior to re-cycling the powder through the delivery system.
Recovery System
A filtration system that separates powder from the air stream to capture the overspray powder. Most common types are the cyclone or filter (cartridge) system.
Reflectance
Degree of light reflected.
Resin
Any type of solid or semi solid organic material of natural or synthetic origin, generally of high molecular weight with no defined melting point. Most resins are polymers.
Resistivity
The resistance to the flow of electrical current through a substance.
Respirator
Safety breathing facemask.
Respray
To recoat, to apply a second coating of the same powder.
Rework
Process to correct imperfections or defects.
Robbing
When powder is effectively redirected due to another earthed surface nearby.
Runs
Sags in the coating. Can occur when objects are pre-heated.
Rust
Corrosion on iron. Red oxide deposits on the surface of the metal.