Covestro Bayhydur VP LS 2150BA Hydrophilic IPDI polyisocyanate curing agent

                           

Type	Based on isophorone diisocyanate (IPDI) hydrophilic modified aliphatic polyisocyanate
Form of Supply	About70%in butyl acetate span>
Purpose	As a co-reactant of water-based resins, it is used as a curing agent for the preparation of chemical-resistant and weather-resistant coatings

Product Specifications

Features	Value	Measurement unit	Method
NCOcontent	9.4±0.5	%	DINEN ISO 11 909
Content of non-volatile components	70±2	%	DIN EN ISO 3251
Viscosity@23°C	500±200	mPa.s	DIN EN ISO 3219/A.3
color value	≤60		DIN EN1557
Isocyanate monomer content	0.5	%	DIN 55 956

Other data*

Features	Value	Measurement unit	Method
equivalent	about447
density,20°C	about1.06	g/cm3	DIN EN ISO 2811
Flashpoint	about27	°C	DIN EN ISO 1523

Solubility/Dilution <span style="background- color:Value

Measurement unit

Method

equivalent

about447

density,20°C

about1.06

g/cm3

DIN EN ISO 2811

Flashpoint

about27

°C

DIN EN ISO 1523

Solubility/Dilution
Bayhydur® VP LS 2150 BA can be completely dissolved/diluted in compounds such as butyl glycol acetate and butyl diethylene glycol acetate or aromatic compounds without adding polar solvents such as esters, ketones and ether esters . The product can be diluted to a stable solution with a minimum solids content of 20%, e.g. with xylene, toluene or higher boiling aromatic compounds such as naphtha No. 100 solvent or aromatic blends. However, it is recommended to test the storage stability of the solution. If the diluted solution is to be stored for a long period of time, do not add aliphatic (gasoline) solvents during dilution. However, Bayhydur® VP LS 2150 BA is compatible with aliphatic compounds and can be added to coatings containing aliphatic solvents. Polyurethane grade solvents should be used (less than 0.05 % water). The solvent must not contain reactive groups such as hydroxyl or amine groups.

Compatibility
Generally, Bayhydur® VP LS 2150BA can be mixed with Desmodur®, Bayhydur® and Bayhydrol® following products. However, the entire formulation must be tested for compatibility (including solids content, co-solvent content, co-solvent type). Desmodur® N3300, N3600, Bayhydur® 3100, most Bayhydrol® products such as Bayhydrol® VP LS 2054, VP LS 2058, VP LS 2231, A 145, XP 2470 and XP 2469.

Features/Applications
Within the Bayhydrol® product range, Bayhydur® VP LS 2150 is primarily used as a co-reactant for aqueous polyol binders. Due to its hydrophilic nature, Bayhydur® VP LS 2150 easily emulsifies in aqueous phases. The addition of Bayhydur® VP LS 2150 BA improves the properties of waterborne two-component polyurethane coatings (such as chemical and solvent resistance).

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Bayhydur® VP LS 2150 BA can be completely dissolved/diluted in compounds such as butyl glycol acetate and butyl diethylene glycol acetate or aromatic compounds without adding polar solvents such as esters, ketones and ether esters . The product can be diluted to a stable solution with a minimum solids content of 20%, e.g. with xylene, toluene or higher boiling aromatic compounds such as naphtha No. 100 solvent or aromatic blends. However, it is recommended to test the storage stability of the solution. If the diluted solution is to be stored for a long period of time, do not add aliphatic (gasoline) solvents during dilution. However, Bayhydur® VP LS 2150 BA is compatible with aliphatic compounds and can be added to coatings containing aliphatic solvents. Polyurethane grade solvents should be used (less than 0.05 % water). The solvent must not contain reactive groups such as hydroxyl or amine groups.

Compatibility
Generally, Bayhydur® VP LS 2150BA can be mixed with Desmodur®, Bayhydur® and Bayhydrol® following products. However, the entire formulation must be tested for compatibility (including solids content, co-solvent content, co-solvent type). Desmodur® N3300, N3600, Bayhydur® 3100, most Bayhydrol® products such as Bayhydrol® VP LS 2054, VP LS 2058, VP LS 2231, A 145, XP 2470 and XP 2469.

Features/Applications
Within the Bayhydrol® product range, Bayhydur® VP LS 2150 is primarily used as a co-reactant for aqueous polyol binders. Due to its hydrophilic nature, Bayhydur® VP LS 2150 easily emulsifies in aqueous phases. The addition of Bayhydur® VP LS 2150 BA improves the properties of waterborne two-component polyurethane coatings (such as chemical and solvent resistance).