Covestro Desmodur N3900 HDI-based curing agent water-based 2K available to increase film thickness
Date：2023-11-15 Categories：Application
Features contains hexamethylene diisocyanate (HDI) low viscosity Aliphatic polyisocyanate resins as curing agents for weather-resistant coating systems
Supply Form 100%
Specifications
Features
|
Value
|
Measurement unit
|
Method
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NCOcontent
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23.5 ± 0.5
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% (by weight)
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M105 -ISO 11909
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Viscosity,23°C
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730 ± 100
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DIN 22 719
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Density
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about 1.15
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g/ml
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DIN EN ISO 2811
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*This data is General information.
Features/Applications
Desmodur® N3900Suitable for preparing high solids systems for automotive refinishing, transportation coatings and plastic coatings.
Compatibility
Desmodur® N3900Can be used with the followingDesmodur®andDesmophen®Mixed use of series products:Desmodur® N75, N100、N3200, N3300,N3390 ,N3400、 N3600andZ4470; most polyester typeDesmophen®series products, such as:Desmophen® 670,680,VPLS2089andVPLS2107 and acrylics. Desmodur® N3900withDesmophen® 650 and 651Incompatible.
Solubility/Dilution
Desmodur® N3900Compatible with the following solvents: ethyl acetate, butyl acetate, propylene glycol methyl ether acetate, acetone, methyl isobutyl ketone, cyclic Hexanone, Toluene, Xylene, naphtha® 100 Menthal spirit and its mixed solvent. Aliphatic hydrocarbon solvents should not be used. Desmodur® N3900Dilution to solid content below40%. Solvents with low binder content should not be stored for long periods of time, as this can lead to cloudiness and sedimentation.
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– Store in original Covestro airtight containers.
– Recommended storage temperature:0-30°C
2.0pt”>Desmodur® N3900withDesmophen® 650and651Incompatible.
Solubility/Dilution
Desmodur® N3900Compatible with the following solvents: ethyl acetate, butyl acetate, propylene glycol methyl ether acetate, acetone, methyl isobutyl ketone, cyclic Hexanone, Toluene, Xylene, naphtha® 100 Menthal spirit and its mixed solvent. Aliphatic hydrocarbon solvents should not be used. Desmodur® N3900Dilution to solid content below40%. Solvents with low binder content should not be stored for long periods of time, as this can lead to cloudiness and sedimentation.
Save
– Store in original Covestro airtight containers.
– Recommended storage temperature:0-30°C
