Bayer MaterialScience NAFTA - Products - Desmodur® polyisocyanates



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Desmodur® polyisocyanates are raw materials for the formulation of a variety of polyurethane coatings, adhesives and sealants. Desmodur products are available in both aromatic and aliphatic (light-stable) grades, and based on diphenylmethane diisocyanate (MDI), toluene diisocyanate (TDI), hexamethylene diisocyanate (HDI) and isophorone diisocyanate (IPDI) chemistry.

Click the literature icon link next to any Desmodur grade in the listing below or click here to find product indexes for Bayer's aliphatic and aromatic isocyanates. Tables in the indexes let you compare isocyanate products by their chemistry and typical properties at a glance. (registration required)

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28 Product Grade(s):

= data sheet(s)

= other literature

DESMODUR BL 3175A

aliphatic blocked polyisocyanate based on hexamethylene diisocyanate (HDI); for light-stable, 1K baking systems with relatively low curing temperatures;blocked NCO content 11.1%; solids 75% ± 2; viscosity 3,000 ± 1,000 mPa·s @ 25°C

DESMODUR BL 4265 SN

aliphatic blocked polyisocyanate based on isophorone diisocyanate (IPDI); for light-stable, 1K baking polyurethane coating systems with relatively low curing temperatures; blocked NCO content 8.1%; solids 65% ± 2; viscosity 11,000 ± 3,000 mPa·s @ 23°C

DESMODUR DA-L

hydrophylic aliphatic polyisocyanate adduct based on hexamethylene diisocyanate (HDI); solvent-free, water-dispersible crosslinking agent for aqueous polymeric dispersions; improves resistance of adhesive bonds to moisture, heat, plasticizers and many solvents; NCO content 20.0% ± 1.0; viscosity 3,400 ± 600 mPa·s @ 23°C

DESMODUR DN

hydrophylic aliphatic polyisocyanate adduct based on hexamethylene diisocyanate (HDI); lower viscosity grade; solvent-free, water-dispersible crosslinking agent for aqueous polymeric dispersions; improves resistance of adhesive bonds to moisture, heat, plasticizers and many solvents; NCO content 21.8% ± 0.5; solids 100%; viscosity 1,250 ± 300 mPa·s @ 23°C

DESMODUR E-14

aromatic polyisocyanate; solvent-free linear aromatic prepolymer based on toluene diisocyanate (TDI); for coatings and sealants; combinations with Desmodur E 22 yield highly flexible, water-resistant finishes and sprayable coatings; NCO content 3.1 – 3.5%; solids 100%; viscosity 5,600 - 8,000 mPa·s @ 23°C

DESMODUR E-15

solvent-free aromatic TDI-based prepolymer for coatings and sealants; combinations with Desmodur E 22 yields highly flexible water-resistant finishes and sprayable coatings; NC content 4.2 - 4.6 %; solids 100%; viscosity 6,000-8000 mPa·s @ 23°C,

DESMODUR E 23 A

aromatic polyisocyanate; solvent-free aromatic polyisocyanate prepolymer based on diphenylmethane diisocyanate (MDI); for moisture-curing pigmented primers for metal, binder for resin-based mortar, 2K coatings and sealants; NCO content 16.0 – 17.0%; solids 100%; viscosity 1,600 mPa·s @ 25°C

DESMODUR E 28

aromatic polyisocyanate prepolymer based on diphenylmethane diisocyanate (MDI); for corrosion-resistant primers containing zinc, curing agent for 2K systems, and for 1K moisture-curing formulations; NCO content 15.5 – 17.5%; solids 100%; viscosity 5,200 - 7,000 mPa·s @ 25°C

DESMODUR E 210

aromatic polyisocyanate; solvent-free aromatic prepolymer based on diphenylmethane diisocyanate (MDI); for two-component polyurea caulks and sealants, and coatings; NCO content 9.7 – 10.2%; viscosity 2,000 - 3,000 mPa·s @ 25°C

DESMODUR E 305


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		Aromatic and aliphatic grades
		Based on MDI, TDI, HDI or IPDI chemistry

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