Desmodur /Desmophen for Coatings - ISG · 550 Elastic wood coatings, e.g. for parquet 160...

Products and PropertiesDesmodur®/Desmophen® for Coatings

Commercial Products

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


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



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 29 MDI Prepolymer Solvent-free 24 175


The values given are non-binding average values. Valid supply tolerances are given in the product information sheets.

Desmodur® Isocyanate Type Supply form% NCO



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


Desmodur®

1100




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


HDI-based

1111


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




approx. mPa·s




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


Desmodur® – IPDI-based

Desmodur® – blocked grades

IPDI-based/blocked grades

1133



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



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,


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,


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


Desmophen® – polyesters I

Polyesters I

1155


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




approx. mPa·s




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



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




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




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


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



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


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


weight

Desmotherm® for PUR - baking coatings


Desmolac®

2233

Equivalent weight


– 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


Desmocap®/Specialities

2244

Desmocap® Isocyanate Type Supply form% NCO


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


Hardener VP LS 2959

Desmocap®

Specialities

2255

Equivalent weight


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


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

[email protected]

www.bayercoatings.com

Desmodur /Desmophen for Coatings - ISG · 550 Elastic wood coatings, e.g. for parquet 160...

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