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ADDOVATE 390

Polyether modified polysiloxane 

Addovate 390 is a non-hydrolyzable foam stabilizer for rigid foam with medium to high activity.

Addovate 390 is Polyether-modified polysiloxane. 
Addovate 390 acts as a stabilizer for the production of polyurethane rigid foams. 

Addovate 390 exhibits additional excellent emulsifying properties. 
Addovate 390 is especially approved if pentane is used as physical blowing agent. 

Recommended dosage of Addovate 390: approx. 2,0 pbw Addovate 390 on 100 pbw polyol. 
Addovate 390 has a maximum shelf life of 12 months.

Addovate 390 is used as a stabilizer for the production of polyurethane rigid foams.
Addovate 390 is a non-hydrolysable silicone stabilizer and may be used for the production of polyurethane rigid foams as e.g. insulations of appliances, pipe insulations, continuously or discontinuously produced panels as well as cavity foaming. 
Addovate 390 is a very versatile stabilizer of medium to high activity with additional excellent emulsifying properties. 

The use of Addovate 390 may be always recommended if either premixes or slow reacting formulations which contain incompatible raw materials (as e.g. polyols and physical blowing agents) should be stabilized. 
Due to the well balanced properties of Addovate 390 a reliable stabilization and a reduction of cell defects can be achieved in slow as well as fast systems. 

Addovate 390 is especially approved if pentane is used as physical blowing agent. 
In that case slow reacting systems with long flow distances (e.g. insulation of appliances) as well as fast reacting systems (e.g. continuous production of panels on double band lamina ors) can be produced reliably.

Physical appearance of Addovate 390:
brown liquid

Density (20 °C):
approx. 0.99 g/cm³

Initial boiling point:
approx. > 100 °C

Pour point:
approx. - 5 °C

Flash point:
(ASTM-D 93, DIN EN 22719)
> 100 °C

Miscibility with water:
dispersible

Acid number:
7.0 ± 1.0 mg KOH/g

Water content:
max. 1.0 %

Viscosity (25 °C):
350 ± 100 mPa.s

Typical Properties of Addovate 390:
Property / Nominal Value / Unit
Acid value / 6 - 8 / mg (KOH)/g
Density at 20 °C / approx. 0.99 / g/cm³
Flash point / > / 100 °C
Pour point / approx. - 3 / °C
Refractive index  / 1.473 - 1.483 / #
Viscosity at 25 °C / 250 - 450 / mPa·s
Water content / max. 1.0 / %

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