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Technical Data Sheet
Eastman™ IBIB

  • Architectural coatings
  • Auto OEM
  • Auto plastics
  • Auto refinish
  • Automotive
  • Commerical printing inks
  • General industrial coatings
  • Graphic arts
  • Industrial maintenance
  • Intermediates
  • Packaging inks non food contact
  • Paints & coatings
  • Protective coatings
  • Wood coatings
Key Attributes
  • 42% biodegradation (28 days)
  • Good solvent activity
  • High blush resistance
  • High electrical resistance
  • Inert - Nonfood use
  • Low MIR value
  • Low density
  • Low surface tension
  • Low water solubility
  • Low-cost retarder solvent
  • Non-HAP
  • Non-SARA
  • REACH compliant
  • Slow evaporation rate
  • Urethane grade

Product Description

Eastman™ IBIB (Isobutyl Isobutyrate) is an economical retarder solvent that is used in nitrocellulose lacquers, coatings for plastic substrates, and high-solids coatings. It is a slow-evaporating solvent with good flow and leveling characteristics, and good blush resistance. It is an economical, urethane grade, active solvent for nitrocellulose. The low surface tension of IBIB is valuable in applications where improved wetting of the substrate is needed. With low water miscibility, IBIB is an excellent retarder solvent for moisture-sensitive coatings such as 2-K polyurethanes. IBIB has high electrical resistance, which is helpful in adjusting the resistivity of coatings applied using electrostatic spray equipment.

The chemical substances for this product are listed as Inert Ingredients Permitted for Use in Nonfood Use Pesticide Products under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). For details on specific permissions, click here.

Typical Properties

PropertyTypical Value, Units
     as Acetic Acid0.01 wt % max.
Assay98.0 wt % min.
Autoignition Temperature432 °C (810 °F)
     BP95.5 °C (203.9 °F)
     Wt % Water39.4 wt %
Blush Resistance 
     @ 80°F (26.7°C)92 % RH
Boiling Point 
     @ 760 mm Hg144-151 °C (291-304 °F)
     Pt-Co15 max.
Critical Pressure 25.7 ATM
Critical Temperature328.8 °C
Critical Volume494 ml/g·mol
Dilution Ratio 
     VMP Naphtha0.8
Electrical Resistance>20 Megohms
Empirical FormulaC8H16O2
Evaporation Rate 
     (ether = 1)30.2
     (n-butyl acetate = 1)0.43
Expansion Coefficient, per °C 
     @ 20°C0.0011
Fire Point46 °C (115 °F)
Flammability Limits in Air, % by Volume 
     Lower @ 93°C1 Vol %
     Upper @ 93°C7.6 Vol %
Flash Point 
     Tag Closed Cup40 °C (104 °F)
Freezing Point-80 °C (-112 °F)
Hansen Solubility Parameters 
     Hydrogen Bonding5.9
Heat of Combustion-1073 kcal/g·mol
Heat of Vaporization9021 cal/g·mol
Liquid Heat Capacity 
     @ 25°C62.55 cal/(g*mol)(°C)
Liquid Viscosity 
     @ 25°C0.9 cP (mPa·s)
Maximum Incremental Reactivity (MIR)0.64
Molecular Weight144.22
NFPA Classification 30IC
Nitrocellulose SolubilityActive
Refractive Index 
     @ 20°C1.4
     in Water, @ 20°C<0.1 wt %
     Water in, @ 20°C<0.2 wt %
Specific Gravity 
     @ 20°C/20°C0.855
Surface Tension 
     @ 20°C23.2 dynes/cm
Vapor Density 
     (air = 1)5
Vapor Pressure 
     @ 20°C3.2 mm Hg
     @ 55°C3.3 kPa
     @ 20°C0.86 kg/L (7.13 lb/gal)

Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.

Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.

10/13/2023 12:56:42 PM