Desmodur®/Desmophen®
22
This brochure provides an overview of the commercial
products from our Desmodur®/Desmophen® range with
their key technical data and applications.
The information covers aliphatic and aromatic poly-
isocyanates (Desmodur®), polyacrylate, polyester and
polyether polyols (Desmophen®) as co-reactants for
polyisocyanates in 2K-PUR systems, the products
from the Desmocap®, Desmolac® and Desmotherm®
families, and specialities.
In addition to the Desmodur®/Desmophen® products,
Bayer MaterialScience markets the Bayhydrol®/
Bayhydur® and Roskydal® ranges. Bayer Material-
Science – one of the world’s leading producers of coat-
ing raw materials – therefore possesses a comprehen-
sive portfolio of high-grade building blocks for
polyurethane coating systems.
Coating raw materials from Bayer MaterialScience meet
the many requirements of the coatings industry and are
used in a wide variety of applications. These include
automotive OEM finishing, transportation coating,
automotive refinishing, industrial coating, plastics
coating, corrosion protection, wood and furniture
finishing, structural protection, floor coatings and roof
membranes.
33
Overview
4 Basic principles
6 Desmodur® – TDI-based
8 Desmodur® – MDI-based
10 Desmodur® – HDI-based
12 Desmodur® – IPDI-based
12 Desmodur® – blocked grades
14–16 Desmophen® – polyesters
16 Desmophen® – reactive thinners
18 Desmophen® – acrylates
18 Desmophen® – polyethers
20 Desmodur® and Desmophen® combinations
22 Desmotherm®
22 Desmolac®
24 Desmocap®
24 Specialities
26 Legend
Desmodur®/Desmophen®
44
Film formation in classic two-pack coatings is
largely the result of addition reactions
between the isocyanate groups of the poly-
isocyanate and the hydroxyl groups of the
polyol compound to form substituted
polyurethanes.
This reaction occurs if the base products are
multifunctional, i.e. each molecule contains
at least two isocyanate or hydroxyl groups.
For a film to form, wich requires three-dimen-
sional crosslinking, at least one of the co-
reactants should have three or more func-
tional groups in the molecule.
Isocyanate groups may also react in a similar
way with other compounds containing
reactive hydrogen atoms, e.g. with amino and
imino compounds, carboxyl groups or, simplest
of all, water.
Eqivalent weightThe reactions between Desmodur® and
Desmophen® or any other hydroxyl-bearing
compound is a chemical reaction. The mixing
ratio is thus calculated from the number of
funtional groups in the co-reactants.
A simple way of calculating the equivalent
amounts of Desmodur® and Desmophen® is to
use the equivalent weights given for the sup-
ply forms being used. These can be found in
the relevant product information sheets or can
be calculated in the following way:
In the case of moisture-curing one-pack
systems, the polyisocyanates cure through
the reaction of free isocyanates with water in
the form of atmospheric humidity. This reac-
tion produces primary amino groups via un-
stable carbamic acid and splits off carbon di-
oxide. The amino groups react directly with
isocyanates to form urea, as shown by the
formulae below:
PU coatings nearly always dry in the pres-
ence of atmospheric moisture. This is why, to
a lesser extent, the crosslinking reactions
shown in the formulae above also occur in
two-pack systems.
Basic chemical reactions
NCO/OH ratio
R–N=C=O+R’–OH Ô R–N–C=O[1]HI
IO–R’
R–N=C=O + H2O ––Ô R–NH2 + CO2
Desmodur®: 42______ x 100% NCO
Desmophen®: 17_____ x 100% OH
R–NH2 + R–N=C=O ––Ô R–N–C–N–R
[2a][2b]
IIO
IH
IH
–Ô
Basic principles
55
The stoichiometric relationship of NCO/OH=
1:1 is established when 1 equivalent of
Desmodur® is combined with 1 equivalent of a
hydroxyl-bearing product, for example:
• Desmodur® L 75=
NCO equivalent weight approx. 324,
• Desmophen® 1100=
OH equivalent weight approx. 262,
In other words, the stoichiometric (100%)
crosslinking of 262 g Desmophen® 1100
requires 324 g Desmodur® L 75 .
The equivalent weight is a guide value. The
quantity of Desmodur® required to provide
optimum results in a given application is best
determinated by trials. In practice, therefore,
more or less is used than the quantities calcu-
lated from the equivalent weights. These dif-
ferences are expressed by the NCO/OH ratio of
the co-reactants used. The ratio for any
Desmodur®/Desmophen® combination can
be calculated as shown below:
The wide range of Desmodur® products is
based on a comparatively small number of
monomeric isocyanates wich can be manufac-
tured on an industrial scale.
With the exception of MDI, the base mono-
mers listet in the table cannot be used direct-
ly in the formulation of coatings because their
high vapour pressure does not allow safe
application in the context of industrial
hygiene.
Various methods can be used to manufacture
products with a higher molecular weight and
lower vapour pressure wich are safe to handle.
For example, polyols can be added to form
prepolymers, biurets can be formed or the di-
isocyanates can be trimerized to form polyiso-
cyanurates.
Desmodur®
pbw. Desmodur® x 17 x % NCONCO/OH ratio = __________________________
pbw. Desmophen® x 42 x %OH
pbw. Desmodur® x equivalent weight Desmophen®
NCO/OH ratio = ___________________________________________ pbw. Desmophen® x equivalent weigh Desmodur®
Abbreviations and Bayer code numbers for diisocyanates
Type Abbreviation Code number*
Toluene diisocyanate TDI 1
Diphenylmethane diisocyanate MDI 2
Hexamethylene diisocyanate HDI 3
Isophorone diisocyanate IPDI 4
Fully hydrogenated MDI H12MDI 5
* first number in the Desmodur® nomenclature
or
Desmodur®
66
Desmodur®
Isocyanate
Type Supply form% NCO
(supply form)Equivalent
weightVisc. at 23°C
approx. mPa·s
L 67 BA TDI Adduct 67% in BA 11.9 350
L 1470 TDI Adduct 70% in EA 9.8 429
IL BA TDI Isocyanurate 51% in BA 8 525
IL EA TDI Isocyanurate 51% in EA 8 525
IL 1351 TDI Isocyanurate 51% in BA 8 525
IL 1451 TDI Isocyanurate 51% in BA 7.4 570
HL BA TDI/HDI Isocyanurate 60% in BA 10.5 400
HL EA TDI/HDI Isocyanurate 60% in EA 10.5 400
E 1160 TDI Prepolymer60% in
MPA/X, 1:15.4 780
E 1240 TDI Prepolymer40% in
MPA/X, 1.9:13.4 1,235
E 1361 MPA/X TDI Prepolymer61% in
MPA/X, 1:16.8 620
E 1361 BA TDI Prepolymer 61% in BA 6.8 620
E 1660 TDI Prepolymer 60% in BA 5.3 792
E 1750 PR TDI Prepolymer50% in
MPA/X, 1:3.55.3 792
E 14 TDI Prepolymer Solvent-free 3.3 1,270
E 15 TDI Prepolymer Solvent-free 4.4 950
L 75 TDI Adduct 75% in EA 13.3 315
L67 MPA/X TDI Adduct 67% in MPA/X, 1:1 11.9 350
The values given are non-binding average values. Valid supply tolerances are given in the
product information sheets.
Desmodur® – TDI-based
TDI-based
77
Visc. at 23°Capprox. mPa·s Properties and applications
600
1,920
2,000
Very hard and very fast-drying coatings for wood, furniture and paper700
1,600
250 Like Desmodur® IL 1351 but with improved compatibility
2,200Very fast-drying coatings for wood, furniture, metal, plastic and paper withbetter elasticity than Desmodur® IL and better lightfastness
1,100
550 Elastic wood coatings, e.g. for parquet
160 Fast-drying parquet coatings
500
Fast-drying parquet coatings, anti-corrosion coatings
250
1,600 Combination resin for very fast-drying parquet coatings
375 Fast-drying parquet coatings
6,800For the flexibilization of other Desmodur® E grades, elastic coatings andmembranes
7,000
1,600
Standard crosslinker with broad range of applications, e.g. chemicallyresistant coatings, anti-corrosion coatings, industrial coatings, wood and furniture finishes, concrete coatings
1,600
Desmodur®
88
VL MDI Polyisocyanate Solvent-free 31.5 133
VL 50 MDI Polyisocyanate Solvent-free 32.5 129
VL 51 MDI Polyisocyanate Solvent-free 32.5 130
VL R 10 MDI Polyisocyanate Solvent-free 31.5 132
VL R 20 MDI Polyisocyanate Solvent-free 31.5 132
VL R 21 MDI Polyisocyanate Solvent-free 31.5 132
VH 20 MDI Modified MDI Solvent-free 24.5 173
E 21 MDI Prepolymer Solvent-free 16 263
E 22 MDI Prepolymer Solvent-free 8.6 489
E 23 MDI Prepolymer Solvent-free 15.4 273
E 29 MDI Prepolymer Solvent-free 24 175
E 20100 MDI Prepolymer Solvent-free 15.9 268
The values given are non-binding average values. Valid supply tolerances are given in the product information sheets.
Desmodur® Isocyanate Type Supply form% NCO
(supply form)Equivalent
weightVisc. at 23°C
approx. mPa·s
Desmodur® – MDI-based
MDI-based
99
90* Crosslinker for solvent-free coatings, sealants and membranes
23*
21*
Very low viscosity; same applications as Desmodur® VL but bettercompatibility with polyethers and lower reactivity; raw material for polyisocyanate prepolymers
120*Higher reactivity than Desmodur® VL; for solvent-free spray coatings and membranes
200*
200*Lower reactivity than Desmodur® VL R 20; for solvent-free coatings and membranes
230* Crosslinker for very tough, elastic 2K coatings
5,400* Binder for coatings (e.g. for concrete and steel) and adhesives
2,800Binder for elastic aggregates (e.g. rubber granules); flexibilizing componentfor other MDI-based Desmodur® grades
1,800 Low-viscosity binder for coatings (e.g. for concrete and steel) and adhesives
220Binder for solvent-free and low-solvent coatings for structural and corrosion protection
1,100Injection resin for sealing water-conveying cracks in structures above andbelow ground
*Visc. at 25°C/approx. mPa·s
Visc. at 23°Capprox. mPa·s Properties and applications
Desmodur®
1100
Desmodur® Isocyanate Type Supply form% NCO
(supply form)Equivalent
weightVisc. at 23°C
approx. mPa·s
N 75 MPA HDI Biuret 75% in MPA 16.5 255
N 75 BA HDI Biuret 75% in BA 16.5 255
N 3200 HDI Biuret Solvent-free 23 183
N 3300 HDI Isocyanurate Solvent-free 21.8 193
N 3390 BA/SN HDI Isocyanurate90% in
BA/SN, 1:119.6 216
N 3390 BA HDI Isocyanurate 90% in BA 19.6 216
N 3400 HDI Uretdione Solvent-free 21.8 193
N 3600 HDI Isocyanurate Solvent-free 23 183
N 3790 BA HDI Isocyanurate 90% in BA 17.8 236
N 3800 HDI Isocyanurate Solvent-free 11 382
NZ 1 HDI/IPDI Polyisocyanate Solvent-free 20 210
E 3265 HDI Prepolymer65% in
MPA/SN, 6:2910.4 400
E 3370 HDI Prepolymer70% in
MPA/SN, 6:2410 420
XP 2410 HDI Isocyanurate Solvent-free 24 175
N 100 HDI Biuret Solvent-free 22 191
N 75 MPA/X HDI Biuret75% in
MPA/X, 1:116.5 255
Desmodur® – HDI-based
The values given are non-binding average values. Valid supply tolerances are given in the product information sheets.
HDI-based
1111
Visc. at 23°Capprox. mPa·s Properties and applications
250
160
2,500
3,000
550
500
150
1,200
1,800
6,000
3,000
1,200
1,200
700
10,000
Outstanding weather stability and gloss retention, no yellowing; for air- andforce-drying automotive, wood, furniture, industrial and plastics coatings, anti-corrosion coatings and chemically resistant coatings
Outstanding weather stability and gloss retention, non-yellowing; for automotive OEM, automotive refinish, plastics and industrial coatings, structural coatings and topcoats
Lower viscosity than Desmodur® N 100; especially for weather-stable andnon-yellowing high-solids coatings, structural coatings and topcoats
Low-viscosity crosslinker for waterborne and solventborne 2K-PUR coatings;also for moisture-curing 1K-PUR systems, for structural coatings and topcoats
Low-viscosity crosslinker for weather-stable and non-yellowing high-solids and waterborne coatings for automotive refinishing, automotive OEM and industrial applications; also for structural coatings and topcoats
Highly functional crosslinker for fast-drying, weather-stable and non-yellowing 2K-PUR coatings for automotive refinishing, automotive OEM and industrial applications
For highly elastic coatings with resistance to accelerated and outdoor weathering; combination with suitable polyisocyanates allows variation of the elasticity using the same polyol mill base
Solvent-free crosslinker for lightfast 2K-PUR systems; as a binder forsolvent-free decorative floor coatings
Binder for weather-stable moisture-curing 1K-PUR coatings
Low-viscosity crosslinker for lightfast 2K-PUR coatings (high-solids/waterborne) for automotive refinishing, automotive OEM, transportation and plastics finishing applications
250
Desmodur®
1122
Desmodur® Isocyanate Type Supply form% NCO
(supply form)Equivalent
weightVisc. at 23°C
approx. mPa·s
Desmodur® Isocyanate Type Supply form% NCO
(supply form)Equivalent
weightVisc. at 23°C
approx. mPa·s
Z 4470 BA IPDI Isocyanurate 70%, in BA 11.9 360
Z 4470 SN IPDI Isocyanurate 70%, in SN 11.9 360
Z 4470 MPA/X IPDI Isocyanurate70%, in
MPA/X, 1:111.9 360
BL 1100 TDIBlockedpolyisocyanate
Solvent-free (3.0)blocked 1,400
BL 3175 SN HDIBlockedpolyisocyanate
75% in SN (11.1)blocked 378
BL 3272 MPA HDIBlockedpolyisocyanate
72% in MPA (10.2)blocked 410
BL 3370 MPA HDIBlockedpolyisocyanate
70% in MPA (8.9)blocked 470
BL 3475 BA/SN HDI/IPDIBlockedpolyisocyanate
75% in
BA/SN, 1:1(8.2)blocked 510
BL 4265 SN IPDIBlockedpolyisocyanate
65% in SN (8.1)blocked 519
PL 340 IPDIBlockedpolyisocyanate
65% in MPA/SN, 1:1
60% in BA/SN, 18:22(7.3)blocked 572
BL 1265 MPA/X TDIBlockedpolyisocyanate
65% in
MPA/X, 1:1(4.8)blocked 875
The values given are non-binding average values. Valid supply tolerances are given in the product information sheets.
Desmodur® – IPDI-based
Desmodur® – blocked grades
IPDI-based/blocked grades
1133
Visc. at 23°Capprox. mPa·s Properties and applications
Visc. at 23°Capprox. mPa·s Properties and applications
600
2,000
Outstanding weather stability and gloss retention; compatible with aliphatic solvents; for automotive OEM and automotive refinishing; also as an additive in alkyd automotive refinish systems and as a combination resin for 1K roof and balcony coatings
1,500
43,000With cycloaliphatic diamines at curing temperatures >150°C for high-build primers, stone-chip protection and underbody protection (rubber-like) systems; also for coil-coating primers
For combination with Desmodur® BL 1100: harder, resistant to low temperatures; in combination withDesmophen® products: hard yet elastic for stone-chip primers, baking primers and coil-coating primers
3,300In combination with Desmophen® products for weather-stable, non-yellowing baking systems for industrial finishing, coil coating and stone-chip primer surfacers; also as an additive to improve adhesion and elasticity
2,700In combination with Desmophen® products for weather-stable, non-yellowing baking systems – especially high-build systems – for industrial finishing and coil coating; also as an additive to improve adhesion and elasticity; good resistance to thermal yellowing
3,800In combination with Desmophen® products for reactive, weather-stable, non-yellowing baking systems for industrial finishing and coil and can coating; also as an additive to improve adhesion and elasticity
1,000In combination with Desmophen® products for very reactive, weather-stable,non-yellowing baking systems for industrial finishing, plastics and coil and can coating
11,000In combination with Desmophen® products for weather-stable, non-yellowingbaking systems for industrial finishing and coil and can coating
600Crosslinker for weather-stable, lightfast and chemically resistant 1K-PUR baking coatings with minimal thermal yellowing, especially for automotive finishing but also for coil and can coating
20,000
Desmophen®
1144
Desmophen® Type Supply form% OH
(supply form)Equivalent
weightVisc. at 23°C
approx. mPa·s
651 MPA/X Branched polyester polyol67% in
MPA/X, 1:15.5 310
650 MPA Branched polyester polyol 65% in MPA 5.3 320
670 Slightly branched polyester polyolSolvent-free,
high viscosity4.3 395
670 BA Slightly branched polyester polyol 80% in BA 3.5 485
680 X Branched polyester polyol 60% in X 1.8 945
680 BA Branched polyester polyol 70% in BA 2.2 775
690 MPA Branched polyester polyol 70% in MPA 1.4 1,215
800 Highly branched polyester polyolSolvent-free,
high viscosity8.6 195
800 BA Highly branched polyester polyol 85% in BA 7.3 233
800 MPA Highly branched polyester polyol 85% in MPA 7.5 225
850 Linear polyester polyolSolvent-free,
high viscosity8.5 200
1100 Branched polyester polyol Solvent-free 6.5 260
1145 Branched polyester/polyether polyol Solvent-free 7.1 239
1150 Branched polyester/polyether polyol Solvent-free 4.7 362
1155 Polyester/polyether polyol Solvent-free 5 340
1200 Slightly branched polyester polyol Solvent-free 5 340
1300 Fatty acid-modified, branched polyester polyol
Solvent-free 4.25 400
1300 BA Fatty acid-modified, branched polyester polyol
75% in BA 3.2 530
1300 X Fatty acid-modified, branched polyester polyol
75% in X 3.2 530
1300 C Fatty acid-modified, branched polyester polyol
75% in X 3.2 530
651 MPA Branched polyester polyol 65% in MPA 5.5 320
The values given are non-binding average values. Valid supply tolerances are given in the product information sheets.
Desmophen® – polyesters I
Polyesters I
1155
Visc. at 23°Capprox. mPa·s Properties and applications
25,000
20,000For weather-stable, colorfast and chemically resistant coatings, primarily fortransportation and aircraft applications and high-grade industrial finishing
Properties largely comparable with Desmophen® 650; better compatibilitywith other binders and aromatic solvents; for barrier coating of tropical woods
2,200(80% in BA) For flexible, weather-stable and colorfast coatings, especially for plastics;
for the flexibilization of hard Desmophen® products2,800
2,750For fast-drying, weather-stable coatings, especially for industrial andtransportation applications
3,000
10,000 Weather-stable and colorfast special resin, e.g. to improve adhesion on PVC
850(70% in MPA)
For air-drying 2K coatings yielding hard, chemically resistant films; high impact resistance, toughness and abrasion resistance; in combination with Desmophen® 1100 for highly abrasion-resistant floor coatings
11,000
11,000
410(at 75°C)
In combination with other Desmophen® products for 2K-PUR coatings
400(70% in MPA)
Mixed with highly branched Desmophen® products and in combination with Desmodur® L, HL, IL and N in 2K-PUR coatings for wood and various plastics
2,950 Polyol for coatings, membranes and synthetic resin mortars
3,500 Hydrophobic universal polyol for medium-hard coatings for concrete, steel and anti-corrosion applications
425 Flexibilizing reactive thinner for Desmophen® 1145, 1150, etc.
300(70% in MPA)
Mixed with highly branched Desmophen® products and in combination with Desmodur® L, HL, IL or N in 2K-PUR coatings for wood and various plastics
3,600(75% in X)
For fast-drying 2K coatings for wood, chipboard and fiberboard; for clear andpigmented primers, primer surfacers and topcoats
1,000
3,450
3,450
14,500
Desmophen®
1166
Desmophen® Type Supply form% OH
(supply form)Equivalent
weightVisc. at 23°C
approx. mPa·s
Desmophen® Type Supply form% OH
(supply form)Equivalent
weightVisc. at 23°C
approx. mPa·s
1652 Linear polyester polyol Solvent-free 1.6 1,063
1300 PR Fatty acid-modified, branched polyester polyol
75% in X 3.1 548
1700 Linear polyester polyol Solvent-free, medium viscosity 1.3 1,310
1800 Slightly branched polyester polyol Solvent-free, medium viscosity 1.8 945
C 1200 Linear aliphatic polycarbonate/polyester polyol Solvent-free 1.7 1,000
C 2200 Linear aliphatic polycarbonate-diol Solvent-free 1.7 1,000
PL 300 Fatty acid-modified, branched polyester polyol 60% in X 2.7 630
PL 302/9 Fatty acid-modified, branched polyester polyol 75% in X/EA 3.3 515
PL 800 Fatty acid-modified, branched polyester polyol 70% in X 2.5 680
PL 817 Fatty acid-modified, branched polyester polyol 75% in X/MEK 3.3 515
RD 181 BA Fatty acid-modified, branched polyester polyol 75% in BA 3.7 460
RD 181 MPA Fatty acid-modified, branched polyester polyol 75% in MPA 3.7 460
RD 181 X Fatty acid-modified, branched polyester polyol 75% in X 3.7 460
RD 181 PR Fatty acid-modified, branched polyester polyol 75% in X 3.6 472
T 1665 Saturated polyester polyol 65% in SN:IB,31.5:3.5 1.7 1,000
T 1775 SN Saturated polyester polyol 75% in SN 2 850
1400 PR Fatty acid-modified, branched polyester polyol
75% in MIBK 3.2 530
NH 1420 Aminofunctional reactive thinner Solvent-free – 276–282
Desmophen® – polyesters II
Desmophen® – reactive thinners
The values given are non-binding average values. Valid supply tolerances are given in theproduct information sheets.
Polyesters II/reactive thinners
1177
Visc. at 23°Capprox. mPa·s Properties and applications
Visc. at 23°Capprox. mPa·s Properties and applications
11,000
7,250 For fast-drying 2K coatings for wood, chipboard and fiberboard; for clear andpigmented primers, primer surfacers and topcoats
For highly reactive wood coatings with good matting properties and high film hardness
Polyol for flexible sealants and membranes; also for plastics coatings incl. soft-touch
17,500 Flexibilizing resin for Desmophen®/Desmodur® combinations to improvetoughness, durability and abrasion resistance of furniture, floor and parquet coatingsFor highly elastic coatings for rubber and plastic articles; also for elastichigh-build, textile and hose coatings21,500
15,000 Primarily for roof and balcony coatings, membranes and sealants, plasticscoatings incl. soft-touch; formerly Desmophen® VP LS 2391
2,050* PUR raw material for PUR dispersions, TPU, casting elastomers, textile coating and adhesives, high resistance to hydrolysis and hot air, lightfast – successor product to Desmophen® XP 2516
For hard and highly reactive wood coatings with long pot life5,350
5,000 For highly transparent and reactive wood coatings with low application viscosity
1,500 For flexible wood coatings with good pigment wetting properties, highresistance to yellowing and low applicationFor highly reactive wood coatings; for combination with highly condensed polyols to increase solids content
For 2K-PUR coatings for wood, e.g. boats and parquet; also for industrialapplications and architectural topcoats; flexible and chemically resistant withgood pigment wetting properties and high resistance to yellowing
10,000
4,500
7,900
7,500
12,500
2,700 Combination resin for baking primers, automotive primer surfacers, coil andcan coatings and industrial coatings with very good weather stability
3,700 Co-reactant for blocked polyisocyanates for coil and can coatings
13,000
900–2,000 As a co-reactant for Desmodur® N products in the formulation oftough yet flexible, lightfast 2K-PUR floor coatings
at 75° C
Desmophen®
1188
Desmophen® Type Supply form% OH
(supply form)Equivalent
weightVisc. at 23°C
approx. mPa·s
A 165 BA/X Hydroxyl-bearing polyacrylate 65% in BA/X, 1:1 1.7 1,000
A 160 X Hydroxyl-bearing polyacrylate 60% in X 1.6 1,060
A 170 BA Hydroxyl-bearing polyacrylate 70% in BA 1.8 945
A 265 BA Hydroxyl-bearing polyacrylate 65% in BA 2 850
A 365 BA/X Hydroxyl-bearing polyacrylate 65% in BA/X, 3:1 2.9 585
A 450 MPA/X Hydroxyl-bearing polyacrylate 50% in MPA/X, 1:1 1 1,700
A 450 BA/X Hydroxyl-bearing polyacrylate 50% in BA/X, 1:1 1 1,700
A 450 BA Hydroxyl-bearing polyacrylate 50% in BA 1 1,700
A 565 X Hydroxyl-bearing polyacrylate 65% in X 2.6 655
A 575 X Hydroxyl-bearing polyacrylate 75% in X 2.8 605
A 665 BA/X Hydroxyl-bearing polyacrylate 65% in BA/X, 3:1 3 567
A 665 BA Hydroxyl-bearing polyacrylate 70% in BA 3.2 531
A 870 BA Hydroxyl-bearing polyacrylate 70% in BA 3 575
A 960 SN Hydroxyl-bearing polyacrylate 60% in SN 0.8 2,180
A 160 SN Hydroxyl-bearing polyacrylate 60% in SN 1.6 1,060
5028 GT Branched dispersion polyether Solvent-free 0.86 1,980
1730 ED Short-chain polyether Solvent-free 22 77
1380 BT Branched polyether Solvent-free 11.7 145
Desmophen® Type Supply form% OH
(supply form)Equivalent
weightVisc. at 23°C
approx. mPa·s
Desmophen® – acrylates
Desmophen® – polyethers
The values given are non-binding average values. Valid supply tolerances are given in theproduct information sheets.
Acrylates/polyethers
1199
Visc. at 23°Capprox. mPa·s Properties and applications
4,300
1,800
For weather-stable and colorfast industrial and anti-corrosion coatings andcoatings for mineral substrates
3,750
For weather-stable and colorfast coatings, especially for industrial and transportation applications2,300
3,000 Weather-stable and colorfast universal resin with good pigment wettingproperties for wood, industrial, transportation and anti-corrosion coatings
Fast-drying universal resin with good resistance to NC and CAB fornon-yellowing wood/furniture, industrial and automotive refinish coatings
5,000
4,500
4,000
For flexible, weather-stable and colorfast coatings, especially for automotiverefinishing and plastics; co-reactant for Desmodur® Z 4470
For flexible, weather-stable and colorfast coatings, especially for plastics
For weather-stable and colorfast coatings with high QUV stability (UV-B) andgood pigment wetting properties, primarily for automotive topcoats
For high-gloss 2K-PUR coatings with good lightfastness and chalkingresistance for automotive refinishing, transportation and industrial applications
1,000
3,500
2,400
8,500
3,500
4,500 For inexpensive high-gloss 2K-PUR coatings with good lightfastness and chalking resistance for industrial applications
2,800
3,600
50 To improve the mechanical properties of solvent-free coatings,sealants and membranes; formerly Desmophen® 250 UFor solvent-free coatings with good chemical resistance; formerlyDesmophen® 550 UFor elastic coatings and surface membranes; formerly Desmophen®
1920 D
600
Visc. at 23°Capprox. mPa·s Properties and applications
Desmodur®/Desmophen®
2200
Desmophen®
650/651 lw lw l l l670 lw l l l680 lw lw l l l690 lw lw l l l800 l lw lw lw lw lw850 l l1100 l l l l lw lw l1145 l l l l1150 l l l l l1200 l l l l lw lw l1300 l l l l lw lw1652 lw l l l1700 lw lw lw lw lw lw1800 lwRD 181 l l l l lw lw l l lA 160/A 165/A 170 lw l l lA 265 lw l l lA 365 lw l l lA 450 lw lw lw l l l lA 565 l l lA 575 l l lA 665 lw l l lA 870 l l l1380 BT l l l lw lw l
Des
mod
ur®
L
Des
mod
ur®
IL13
51
Des
mod
ur®
IL14
51
Des
mod
ur®
HL
Des
mod
ur®
VL
Des
mod
ur®
VL
50
Des
mod
ur®
VH
20
Des
mod
ur®
N 1
00
Des
mod
ur®
N 7
5
Des
mod
ur®
N 3
200
Possible combinations with key Desmophen® products
Combinations
lw lw lw l lw l lw l
Des
mod
ur®
BL
3272
l
Des
mod
ur®
BL
3370
l
Des
mod
ur®
BL
3475
l
Des
mod
ur®
BL
4265
Des
mod
ur®
Z 44
70
Des
mod
ur®
NZ
1
l l l l l l l l l lwl l l l l l
l l l l l l ll l l l
l l l ll l l
lw l l lw ll
lw l l l ll llw lwlw lw
lw lw lw lw lw l l l l ll l l lw l l l l l ll l l lw l l ll l l lw l l l l ll l lw lw l l l l l ll l lw lw l l ll l lw lw l l ll l l lw l l l l ll l l l l l l l
l l l l
Des
mod
ur®
N 3
300
Des
mod
ur®
N 3
390
Des
mod
ur®
N 3
400
Des
mod
ur®
N 3
600
Des
mod
ur®
N 3
790
Des
mod
ur®
BL
1265
Des
mod
ur®
BL
3165
/317
5
2211
l Standard combinations lw Theoretical possibilities that may be of interest for special requirements
Desmotherm®/Desmolac®
2222
Isocyanate Type Supply form% NCO
(supply form)Equivalent
weightDesmotherm®
Non-reactive linear polyurethane based on MDI
Type
2170 MDISelf-crosslinking baking urethane resin
70% in BA/SN/IB, 13:12:5
blocked –
2100
Desmolac®
Solvent-free – –
Non-reactive linear polyurethane based on IPDI4125 IP/T/MPA 25% in IP/T/MPA,37.5:28.5:9
– –
Non-reactive linear polyurethane based on IPDI4340 X/IB 40% in X/IB, 51:9 – –
Supply form% OH
(supply form)Equivalent
weight
Desmotherm® for PUR - baking coatings
The values given are non-binding average values. Valid supply tolerances are given in the product information sheets.
Desmolac®
2233
Equivalent weight
Visc. at 23°Capprox. mPa·s Properties and applications
– 2,000 For 1K-PUR baking coatings (primers and primer surfacers)
–800
(30% in MEK)For primers or finishes for flexible substrates
– 12,000Alone or in combination with polyisocyanates for primers or finishes forflexible substrates
– 7,500Alone or in combination with polyisocyanates for primers or finishes forflexible substrates; lower viscosity than Desmolac® 4125
Equivalent weight
Visc. at 23°Capprox. mPa·s Properties and applications
Desmocap®/Specialities
2244
Desmocap® Isocyanate Type Supply form% NCO
(supply form)Equivalent
weight
11 TDI
24
Branched prepolymer with blocked isocyanate groups
Solvent-free (2.4)blocked 930
1180 TDIBranched prepolymer with blocked isocyanate groups in plasticizer
80% in Disflamoll® TOF
(1.9)blocked 1,160
1190 TDIBranched prepolymer with blocked isocyanate groups in plasticizer
90% in Adimoll® DO
(2.2)blocked 1,030
12 TDILinear prepolymer with blocked isocyanate groups
Solvent-free (1.6)blocked 1,500
Desmodur® LD HDI
Isocyanate
Isocyanate of low functionality Solvent-free - NCO 11.8% 360
Desmodur® MT MDI Prepolymer Solvent-free - NCO 16.8% 250
Hardener DT – Diamine Solvent-free - NH 90
Hardener OZ – Urethane bisoxazolidine Solvent-free - NH/OH 122–244
– Urethane bisoxazolidine Solvent-free - NH/OH 150–300
Soft Resin P 65 – Non-reactive polyester 65% in MPA – –
Type Supply form Functionality Equivalent
weight
The values given are non-binding average values. Valid supply tolerances are given in the product information sheets.
Hardener VP LS 2959
Desmocap®
Specialities
2255
Equivalent weight
Visc. at 23°Capprox. mPa·s Properties and applications
25
930 100,000 For elastic coatings and sealants; for the flexibilization of epoxy resins
1,160 13,000 For elastic coatings and sealants; for the flexibilization of epoxy resins
1,030 30,000 For elastic coatings and sealants; for the flexibilization of epoxy resins
1,500 40,000For elastic coatings and sealants; for the flexibilization of epoxy resins;stronger flexibilizing effect than Desmocap® 11
360 75Improves the storage stability of pigmented, moisture-curing aliphatic1K-PUR coatings
250 900Improves the storage stability of pigmented, moisture-curing aliphatic1K-PUR coatings
90 200 For solvent-free coatings
122–244 7,500 With selected Desmodur® products for 1K coatings
150–300 3,500 With selected Desmodur® products for 1K coatings
– 1,100 In the formulation of color pastes for 1K- and 2K-PUR coatings
Equivalent weight
Visc. at 23°Capprox. mPa·s Properties and applications
Legend
2266
Explanation of the abbreviations used in this brochure
Butyl acetateBA
Dibasic esterDBE
IsobutanolIB
Isophorone diisocyanateIPDI
Methyl ethyl ketoneMEK
1-Methoxypropylacetate-2MPA
Ethyl acetateEA
Hexamethylene diisocyanateHDI
IsopropanolIP
Diphenylmethane diisocyanateMDI
Methyl isobutyl ketoneMIBK
Solvent naphthaSN
TolueneT
Toluene diisocyanateTDI
XyleneX
TrialproductsVP LS...
XP...
This information and our technical advice – whether verbal,
in writing or by way of trials – are given in good faith but
without warranty, and this also applies where proprietary
rights of third parties are involved.
Our advice does not release you from the obligation to verify
the information currently provided – especially that con-
tained in our safety data and technical information sheets –
and to test our products as to their suitability for the intended
processes and uses. The application, use and processing of
our products and the products manufactured by you on the
basis of our technical advice are beyond our control and,
therefore, entirely your own responsibility. Our products are
sold in accordance with the current version of our General
Conditions of Sale and Delivery.
Order No: MS004735 Edition: 2005-07 E
Bayer MaterialScience AGCoatings, Adhesives & Sealants51368 LeverkusenGermany
www.bayercoatings.com