Covestro Desmodur N3580 BA (XP 2679) ultra-fast drying PU curing agent HDI base

Type	aliphatic polyisocyanate (HDI Allophanate trimer)
Form of Supply	CombinationDesmophen® Grade configuration lightfast, wear-resistant polyurethane coating system
Purpose	about80% in butyl acetate

Specifications

Features	Value	Measurement unit	Method
NCOcontent	15.4±0.3	%	M105-ISO11909
Features	Value	Measurement unit	Method
equivalent	about273
Flashpoint	31.5	°C	DINENISO13736
Density@20°C	about1.1	g/ml	DIN51757

*This data is general information and is not part of the product manual.

Solubility/Dilution
Desmodur® N3580 BA can be diluted with esters, ketones, aromatic hydrocarbons, such as ethyl acetate, butyl acetate, propylene glycol methyl ether acetate, methyl isobutyl Ketones, cyclohexanone, toluene, xylene, naphtha and mixtures thereof. Generally good miscibility with listed solvents, but storage stability of prepared solutions must be tested. PU grade solvents (less than 0.05% water content) should be used. These solvents should not contain reactive groups like hydroxyl and amino groups. Aromatic hydrocarbons are not suitable as solvents. Polar and non-polar solutions with non-volatile content <65% are recommended as diluents. Desmodur® eco N7300 should not be diluted below 40% solids by weight. Prolonged storage of solvents with low binder content may result in turbidity and sedimentation.

Compatibility
Desmodur® N3580BA can usually be blended with the following products: aliphatic isocyanates such as Desmodur® N100, N75, N3200, N3390, N3400, N3600, N3800, XP 2410, Z4470 and some polyacrylates . However, the compatibility of ingredients in a formulation should always be tested.

Features/Applications
Desmodur® N3580 BA is used in combination with suitable Desmophen® products for the preparation of light, weather and scratch resistant two-component polyurethane coatings. The main fields of application are topcoats in automotive OEM and plastic coatings.

Save
– Store in original Covestro airtight container.
– Recommended storage temperature: 0-30°C.
– Protect from moisture, heat and foreign substances.

General Information: This product is moisture sensitive. Storage in high temperature environment will make the color of the product darker and the viscosity will increase.

Storage Time
When the product is stored in full compliance with the requirements of the above “storage” clause and handled properly, the product meets the requirements within 9 months from the date of shipment stated on the transport document Specifications or characteristic values ​​described in the “Specification or characteristic values” clause above, as applicable. If the product exceeds the above-mentioned 9-month period, it does not mean that it no longer meets the set values ​​in the specifications or characteristic values. However, it is recommended that products older than 9 months from the date of shipment be tested before use to confirm that they still comply with the values ​​set forth in the specification or characteristic values. The manufacturer does not make any promises for products that have been shipped for more than 9 months from the date of shipment, and does not accept any responsibility and liability for non-conformity to specifications or set values ​​​​in the characteristic values.

quantity. Prolonged storage of solvents with low binder content may result in turbidity and sedimentation.

Compatibility
Desmodur® N3580BA can usually be blended with the following products: aliphatic isocyanates such as Desmodur® N100, N75, N3200, N3390, N3400, N3600, N3800, XP 2410, Z4470 and some polyacrylates . However, the compatibility of ingredients in a formulation should always be tested.

Features/Applications
Desmodur® N3580 BA is used in combination with suitable Desmophen® products for the preparation of light, weather and scratch resistant two-component polyurethane coatings. The main fields of application are topcoats in automotive OEM and plastic coatings.

Save
– Store in original Covestro airtight container.
– Recommended storage temperature: 0-30°C.
– Protect from moisture, heat and foreign substances.

General Information: This product is moisture sensitive. Storage in high temperature environment will make the color of the product darker and the viscosity will increase.

Storage Time
When the product is stored in full compliance with the requirements of the above “storage” clause and handled properly, the product meets the requirements within 9 months from the date of shipment stated on the transport document Specifications or characteristic values ​​described in the “Specification or characteristic values” clause above, as applicable. If the product exceeds the above-mentioned 9-month period, it does not mean that it no longer meets the set values ​​in the specifications or characteristic values. However, it is recommended that products older than 9 months from the date of shipment be tested before use to confirm that they still comply with the values ​​set forth in the specification or characteristic values. The manufacturer does not make any promises for products that have been shipped for more than 9 months from the date of shipment, and does not accept any responsibility and liability for non-conformity to specifications or set values ​​​​in the characteristic values.