Thinners are solvents or solvent blends used to reduce the viscosity of paints, coatings, resins, or inks to improve application, flow, and drying time.

Thinners are typically mixtures of volatile organic solvents, chosen for their evaporation rate, solvency power, and compatibility with the target material.

CAS Number:  N/A

Common Solvents Found in Thinners:

SolventTypical Role
TolueneFast-drying, good solvency
XyleneModerate evaporation, excellent solvency
AcetoneVery fast evaporating, strong solvency
Butyl AcetateMedium evaporation, enhances gloss
Ethyl AcetateFast drying, used in automotive paints
MEK (Methyl Ethyl Ketone)Powerful, fast evaporating solvent
IPA (Isopropanol)For cleaning and water-reduction
Mineral SpiritsSlower drying, mild odor, for alkyds
NaphthaMedium-fast drying, general-purpose

Types of Thinners:

TypeUsed For
NC ThinnerNitrocellulose paints, wood coatings
PU ThinnerPolyurethane paints/coatings
Epoxy ThinnerEpoxy-based primers and coatings
Enamel ThinnerSynthetic enamel paints
Universal ThinnerMulti-purpose thinner for general coatings
Automotive ThinnerAutomotive paints, primers, clear coats
Acrylic ThinnerAcrylic resins and topcoats
Retarder ThinnerSlower evaporation to reduce blushing

Application in areas:

  • Paint viscosity adjustment for brushing, rolling, or spraying
  • Cleaning tools and equipment
  • Surface degreasing before painting
  • Ink dilution in printing industries
  • Resin dissolution in industrial coatings
  • Lacquer formulation in wood finishing

Key Considerations:

  • Volatility: Impacts drying time and film quality
  • Compatibility: Must match the resin/paint system
  • Toxicity: Many are flammable and may be harmful if inhaled or absorbed
  • VOC Regulations: Subject to air quality and emissions control (especially in automotive and construction sectors)

Safety & Handling:

  • Use in well-ventilated areas
  • Keep away from heat/flames
  • Use PPE: gloves, goggles, respirator if necessary
  • Store in sealed, approved containers
  • Dispose according to local hazardous waste guidelines

Packaging: Drum, TIN