Methyl Isoamyl Ketone MIAK

Coating raw materials 2025-07-14

Applications

.  Auto oem

.  Auto refinish

.  General industrial coatings

.  Paints & coatings

.  Process solvents

Key Attributes

. Excellent solvent activity

. High dilution ratio

. Inert – Nonfood use

. Low density

. Low surface tension

. Non-HAP

. Non-SARA

. REACH compliant

. Readily biodegradable

. Slow evaporation rate

. Urethane grade

Product

MT-MIAK (Methyl Isoamyl Ketone) has high solvent activity, slow evaporation rate, low density, low surface tension, and a high boiling point. These properties make MIAK a very good solvent for high-solids coatings.

Because regulations limit the weight of solvent per gallon of coating, formulators favor the use of low-density solvents that help reduce the VOC content of a coating.

MIAK is lower in density than ester, aromatic hydrocarbons, and glycol ether solvents with similar evaporation rates.

The low density and high activity of MIAK are significant advantages when formulating low-viscosity, high-solids coatings. In addition, MIAK is useful as a  polymerization solvent for high solids acrylic resins.

Typical Properties

Property    Typical Value, Units
General
Acidity

as Acetic Acid

0.01 wt % max.
Assay 98.5 wt % min.
Autoignition Temperature 424 °C (795 °F)
Azeotropes

BP

 

94.7 °C (202.5 °F)

Wt % Water 44 wt %
Blush Resistance

@ 80°F (26.7°C)

89 % RH
Boiling Point @ 760 mm Hg

Dry Point

Initial

 

148 °C (298 °F)

141 °C (286 °F)

Color

Pt-Co

10 max.
Critical Pressure 29.3 ATM
Critical Temperature 327.8 °C
Critical Volume 421 ml/g·mol
Dilution Ratio

Toluene

VMP Naphtha

 

4.1

1.2

Electrical Resistance 0.6 Megohms
Empirical Formula C7H14O
Evaporation Rate

(ether = 1)

(n-butyl acetate = 1)

24.20.5
Expansion Coefficient, per °C @ 20°C 0.00107
Flash Point

Tag Closed Cup

36 °C (96 °F)
Freezing Point -74 °C (-101 °F)
Hansen Solubility Parameters

Hydrogen Bonding

Nonpolar

Polar

Total

 

2

7.6

2.8

8.3

Heat of Combustion -979.9 kcal/g·mol
Heat of Vaporization 9186 cal/g·mol
Liquid Heat Capacity @ 25°C 59.64 cal/(g*mol)(°C)
Liquid Viscosity

@ 25°C

0.7 cP (mPa·s)
Molecular Weight 114.19
Nitrocellulose Solubility Active
Refractive Index @ 20°C 1.4078
Solubility

in Water, @ 20°C

Water in, @ 20°C

 

0.5 wt %

1.2 wt %

Specific Gravity

@ 20°C/20°C

0.813
Surface Tension

@ 20°C

 

25.8 dynes/cm

TLV PPM 1998 50
Vapor Density

(air = 1)

 

3.9

Vapor Pressure

@ 20°C

@ 55°C

 

4.5 mm Hg

3.7 kPa

Wt/Vol

@ 20°C

0.81 kg/L (6.76 lb/gal)

Comments

The properties reported here are typical values for an average batch. There is no guarantee that material from any particular batch will exactly conform to the values given.