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DALPAD™C Coalescent
DALPADTM C is the slowest-evaporating member of the family of DOWANOL glycol ethers. DALPADTM C is a high boiling, colorless solvent with low viscosity and practically no odor. Due to its length and hydrophobic structure, DALPADTM C has a high organic solubility, low water solubility, and a high boiling point.
Its unique properties make it suitable for a number of water-borne resins where a powerful coalescent is needed for proper film formation. Its solvating characteristics combined with low water solubility ensure that DALPADTM C will almost completely partition into the resin phase, thus providing superior coalescence. The extremely low odor of DALPADTM C makes it suitable for indoor decorative paints.
Application
Coalescent for water-borne architectural and industrial coatings.
Advantages
- Excellent film forming ability
- High organic solubility
- Low Evaporation Rate
- Extremely Low Odor
- Low Water Solubility
Typical Properties
| Molecular weight (g/mol) | 248.4 | |
| Boiling point @ 760 mmHg, 1.01 bar | 525.2°F | 274C |
| Flash point (Setaflash closed cup) | 259°F | 126°C |
| Freezing point | <-103°F | <-75°C |
| Vapor pressure@ 20°C - extrapolated | <0.01 mmHg <0.01 mbar |
|
| Specific gravity (25/25°C) | 0.930 | |
| Density
@ 20°C |
7.76 lb/gal 7.76 lb/gal |
0.930 g/cm³ 0.927 g/cm³ |
| Viscosity (cP or mPa•s @ 25°C) | 7.0 | |
| Surface tension (dynes/cm or mN/m @ 25°C) | 29.7 | |
| Specific heat (J/g/°C @ 25°C) | 1.80 | |
| Heat of vaporization (J/g) at normal boiling point | 2220 | |
| Auto-ignition temperature | 529°F | 186°C |
| Evaporation rate | (n-butyl acetate = 1.0) (diethyl ether = 1.0) |
0.0004 > 1200 |
| Solubility, g/100 g @ 25°C Solvent in water Water in solvent |
Defoamers | 3 (2.5 wt%) 8.5 (8 wt%) |
| Hansen solubility parameters (J/cm³)1/2 _d (Dispersion) _p (Polar) _h (Hydrogen bonding) |
Defoamers | 14.8 1.7 7.9 |
