DESMODUR® E 2190 X

Desmodur® E 2190 X is an aromatic polyisocyanate prepolymer based on diphenylmethane diisocyanate (MDI). It serves as a raw material in the formulation of solvent-borne one-component polyurethane coatings, which cure by reacting with atmospheric moisture.

Here are the key specifications and characteristics of Desmodur® E 2190 X:

Characterization:

• Type: Aromatic polyisocyanate prepolymer based on MDI.
• Form: Approximately 90% in xylene.

Specification:

• NCO Content: 14.3 ± 0.5%
• Viscosity at 25°C: 1,100 ± 400 mPa·s

Other Data:

• Flash Point: Approximately 25°C
• Density at 20°C: Approximately 1.11 g/ml

Solubility/Thinnability:

• Desmodur® E 2190 X exhibits good compatibility with esters such as ethyl acetate, butyl acetate, and 1-methoxypropylacetate-2, as well as with aromatic hydrocarbons such as toluene, solvent naphtha, Solvesso® 100, and Shellsol® A.
• It is not compatible with white spirit, and alcohols should not be used due to potential reactivity.
• Only PU grade solvents (< 0.05% water) should be used.

Properties/Applications:

• Ideal for formulating moisture-curing, one-component primers and sealers to protect porous substrates against moisture, oil, fuels, and other chemicals.
• Can be used as a binder for high-performance anti-corrosion coatings for steel in hydraulic and civil engineering applications.

Storage:

• Should be stored in its original sealed Covestro container.
• Recommended storage temperature: room temperature (approximately 23°C).
• Protect from moisture, heat, and foreign material.

Desmodur® E 2190 X offers excellent properties for applications requiring effective moisture-curing coatings and sealers, as well as for anti-corrosion coatings in various engineering applications.