by CMID
The terms solvent and thinner are often used together, but they do not always mean the same thing.
Solvent
Solvent is a broad term for a material used to dissolve or carry other materials within a system.
Thinner
Thinner is a commercial or application term commonly used for a solvent or solvent blend intended to adjust the characteristics of paint, coatings, ink or related systems.
Not every solvent is a thinner, and thinners do not all have the same composition.
What to understand
Check material identity, declared composition, the coating system and intended application before comparing products.
Key takeaway:understand the system and intended use, rather than relying on the word “thinner” alone. This article makes no claims about specific product compatibility or substitution.
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Solvent versus thinner: what is the difference? They are often treated as the same, although their roles and use perspectives differ.
Solvent: a general term for a chemical that can dissolve another substance. Examples: Acetone, IPA, Methanol, N-Hexane, DPG. Focuses on dissolving ability.
Thinner: a common term for a material added to paint, ink or coatings to adjust application characteristics. Usually a blend of several solvents. Focuses on application performance and final results. Remember: all thinners contain solvent, but not every solvent is called a thinner.