科思创水性固化剂Bayhydur_401-60_PGDA科思创供应商源禾

Characterization	Hydrophilically  modified  aliphatic  polyisocyanate  based  on isophorone diisocyanate (IPDI).
Bayhydur? 401-60 PGDA might be used as co-reactant for aqueous resins and as hardener for chemically resistant and weather-stable coating systems.
Form supplied	Approx. 60 % in propylene glycol diacetate



Characteristic data*

Property	Value	Unit of measurement	Method
NCO content	approx. 8.5	%	M105-ISO 11909
Viscosity at 23 °C	approx. 1,100	mPa?s	M014-ISO 3219/A.3
Color value (Hazen)	≤ 60		M017-EN 1557
Monomeric IPDI	< 0.30	%	M106-ISO 10283
*These values are provisional. Binding supply specifications will not be available until the final product data sheet is published.



Other data** Property	
Value	
Unit of measurement	
Method
Equivalent weight	approx. 494		
Flash point	approx. 84	°C	DIN EN ISO 2719
Density at 20 °C	approx. 1.11	g/cm3	DIN 51757
**These values provide general information.
 


Solubility / thinnability	Generally speaking, Bayhydur?  401-60 PGDA can be diluted with    different
polar to unpolar aliphatic solvents that are common when formulating lacquers. With polar solvents dilution of down to 20 % solid content can be reached. The storage stability of the corresponding dilutions needs to be checked, thoroughly. Especially, when using benzines dilutions need to
be done with due care and skill. The addition of Bayhydur? 401-60 PGDA to the benzine-dissolved binder is recommended. Only PU grade solvents (< 0.05 % water) should be used. Also, the solvents have to be free off reactive groups such as hydroxyl or amino groups.


Compatibility	Generally speaking, Bayhydur?  401-60 PGDA can be mixed with various Desmodur? - and Bayhydur? - types, e.g. Desmodur? N 3300 or N 3600, Bayhydur? 3100, XP 2655 or XP 2547. However, the compatibility must be tested in each case. As well, Bayhydur?  401-60 PGDA can be dispersed   in
various waterborne binders such as Bayhydrol? - types, e.g. Bayhydrol? A 2470, A 2646, A 242, A 2845 and U 2755. The overall formulation (solids content, co-solvent content, type of co-solvent) needs to be considered in order to achieve a stable and properly working formulation. In case you need technical support, please, ask your supplier.