Desmodur-TDI based curing agent

Covestro Desmodur VP LS 2394 TDI/HDI curing agent two-component suitable for fast drying and light resistance

type	Aromatic/aliphatic polyisocyanates based on toluene diisocyanate/hexamethylene diisocyanate
form of supply	About 60% Butyl Acetate
use	Use in combination with various Desmophen® products or other suitable hydroxyl-containing compounds to formulate clear and pigmented two-pack polyurethane coatings with fast drying and lightfastness

Product Specifications

characteristic	Numerical value	Units of measurement	method
NCO content	10.0-10.5	%	DIN EN ISO 11 909 A.
solid content	59.3-62.3	%	DIN EN ISO 3251
Viscosity@23°C	170-470	mPa·s	DIN EN ISO 3219 / A.3
Hazen color value	<50		DIN EN ISO 1557
Monoblock HDI	<0.1	%	DIN 55 956
TDI monomer content	≤0.4	％

other data*

characteristic	Numerical value	Units of measurement	method
equivalent weight	412
Flash point	30	°C
Density@20°C	约1.05	g/cm3	DIN 51 757

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

Solubility / dilution
In general, Desmodur® VP LS 2394 has good compatibility with the listed solvents. However, the stability of the resulting solution must always be tested. Desmodur® VP LS 2394 can be diluted with ethyl acetate, butyl acetate and 1-methoxypropyl acetate-2. Aromatic hydrocarbons are not true solvents and therefore have only limited compatibility as diluents. Long-term storage of solutions with low binder content may result in cloudiness and precipitation. Only use PU grade solvents (water content < 0.05%). Solvents must not contain reactive groups.

Compatibility
Desmodur® VP LS 2394 is compatible with many polyester based Desmophen® products and has limited compatibility with hydroxyl containing acrylates. In general, Desmodur® VP LS 2394 is compatible with Desmodur® products.

Features/Applications
Fast drying times are especially beneficial for clear and pigmented coatings applied to wood.
The application of the curtain coating process is also possible.

store
- Store in the original, sealed Covestro container.
- Recommended storage temperature: > 0 - 30°C.
- Resistant to moisture, heat and foreign objects.
General Information: This product is moisture sensitive. Storage at elevated temperatures can result in an increase in color and viscosity.

storage time
The product will meet the specifications or values specified in the "Specifications or Characteristic Data" section above for a period of six months after the date of shipment specified in the corresponding shipping document, provided that the product is stored in full compliance with the specifications and referenced in the "Storage" section above. storage conditions and otherwise dispose of properly. Failure during a six-month period does not necessarily mean that the product no longer meets specifications or setpoints. However, it is recommended that such products be tested if they still meet specifications or setpoints before using them. No representation has been made about the product after the six-month period, and the manufacturer is not responsible or liable for the failure of the product to meet the stated or set value after the six-month period.