Products and Properties Desmodur /Desmophen for Coatings Commercial Products
Desmodur /Desmophen 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 polyisocyanates (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 coating raw materials therefore possesses a comprehensive 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. 2
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 3
Desmodur /Desmophen Basic chemical reactions [1] Film formation in classic two-pack coatings is largely the result of addition reactions between the isocyanate groups of the polyisocyanate and the hydroxyl groups of the polyol compound to form substituted polyurethanes. H I R N=C=O+R OH R N C=O I O R 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-dimensional crosslinking, at least one of the coreactants should have three or more functional 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. 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 reaction produces primary amino groups via unstable carbamic acid and splits off carbon dioxide. The amino groups react directly with isocyanates to form urea, as shown by the formulae below: [2a] [2b] R N=C=O + H2O R NH2 + CO2 R NH2 + R N=C=O R N C N R I H II O I H PU coatings nearly always dry in the presence of atmospheric moisture. This is why, to a lesser extent, the crosslinking reactions shown in the formulae above also occur in two-pack systems. NCO/OH ratio Eqivalent weight The 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 supply forms being used. These can be found in the relevant product information sheets or can be calculated in the following way: Desmodur : 42 x 100 % NCO Desmophen : 17 x 100 % OH 4
Basic principles 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 calculated from the equivalent weights. These differences 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: NCO/OH ratio = or NCO/OH ratio = pbw. Desmodur x 17 x % NCO pbw. Desmophen x 42 x %OH pbw. Desmodur x equivalent weight Desmophen pbw. Desmophen x equivalent weigh Desmodur Desmodur The wide range of Desmodur products is based on a comparatively small number of monomeric isocyanates wich can be manufactured on an industrial scale. 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 With the exception of MDI, the base monomers listet in the table cannot be used directly 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 diisocyanates can be trimerized to form polyisocyanurates. Fully hydrogenated MDI H12MDI 5 * first number in the Desmodur nomenclature 5
Desmodur Desmodur TDI-based Desmodur Type Supply form % NCO (supply form) Equivalent weight Isocyanate L75 TDI Adduct 75% in EA 13.3 315 L67 MPA/X TDI Adduct 67% in MPA/X, 1:1 11.9 350 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 Prepolymer E 1240 TDI Prepolymer E 1361 MPA/X TDI Prepolymer 60% in MPA/X, 1:1 40% in MPA/X, 1.9:1 61% in MPA/X, 1:1 5.4 780 3.4 1,235 6.8 620 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 Prepolymer 50% in MPA/X, 1:3.5 5.3 792 E 14 TDI Prepolymer Solvent-free 3.3 1,270 E 15 TDI Prepolymer Solvent-free 4.4 950 6 The values given are non-binding average values. Valid supply tolerances are given in the product information sheets.
TDI-based Visc. at 23 C approx. mpa s Properties and applications 1,600 1,600 600 Standard crosslinker with broad range of applications, e.g. chemically resistant coatings, anti-corrosion coatings, industrial coatings, wood and furniture finishes, concrete coatings 1,920 2,000 700 Very hard and very fast-drying coatings for wood, furniture and paper 1,600 250 Like Desmodur IL 1351 but with improved compatibility 2,200 1,100 Very fast-drying coatings for wood, furniture, metal, plastic and paper with better elasticity than Desmodur IL and better lightfastness 550 Elastic wood coatings, e.g. for parquet 160 Fast-drying parquet coatings 500 250 Fast-drying parquet coatings, anti-corrosion coatings 1,600 Combination resin for very fast-drying parquet coatings 375 Fast-drying parquet coatings 6,800 7,000 For the flexibilization of other Desmodur E grades, elastic coatings and membranes 7
Desmodur Desmodur MDI-based Desmodur Isocyanate Type Supply form % NCO (supply form) Equivalent weight 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. 8
MDI-based Visc. at 23 C approx. mpa s Properties and applications 90* Crosslinker for solvent-free coatings, sealants and membranes 23* 21* Very low viscosity; same applications as Desmodur VL but better compatibility with polyethers and lower reactivity; raw material for polyisocyanate prepolymers 120* 200* Higher reactivity than Desmodur VL; for solvent-free spray coatings and membranes 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 2,800 Binder for elastic aggregates (e.g. rubber granules); flexibilizing component for other MDI-based Desmodur grades 1,800 Low-viscosity binder for coatings (e.g. for concrete and steel) and adhesives 220 1,100 Binder for solvent-free and low-solvent coatings for structural and corrosion protection Injection resin for sealing water-conveying cracks in structures above and below ground *Visc. at 25 C/approx. mpa s 9
Desmodur Desmodur HDI-based Desmodur Isocyanate Type Supply form % NCO (supply form) Equivalent weight N 100 HDI Biuret Solvent-free 22 191 N 75 MPA/X HDI Biuret 75% in MPA/X, 1:1 16.5 255 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 Isocyanurate 90% in BA/SN, 1:1 19.6 216 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 Prepolymer E 3370 HDI Prepolymer 65% in MPA/SN, 6:29 70% in MPA/SN, 6:24 10.4 400 10 420 XP 2410 HDI Isocyanurate Solvent-free 24 175 10 The values given are non-binding average values. Valid supply tolerances are given in the product information sheets.
HDI-based Visc. at 23 C approx. mpa s Properties and applications 10,000 250 250 Outstanding weather stability and gloss retention, no yellowing; for air- and force-drying automotive, wood, furniture, industrial and plastics coatings, anti-corrosion coatings and chemically resistant coatings 160 2,500 Lower viscosity than Desmodur N 100; especially for weather-stable and non-yellowing high-solids coatings, structural coatings and topcoats 3,000 550 Outstanding weather stability and gloss retention, non-yellowing; for automotive OEM, automotive refinish, plastics and industrial coatings, structural coatings and topcoats 500 150 1,200 1,800 6,000 3,000 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 for solvent-free decorative floor coatings 1,200 1,200 700 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 11
Desmodur Desmodur IPDI-based Desmodur Isocyanate Type Supply form % NCO (supply form) Equivalent weight Z 4470 SN IPDI Isocyanurate 70%, in SN 11.9 360 Z 4470 MPA/X IPDI Isocyanurate 70%, in MPA/X, 1:1 11.9 360 Z 4470 BA IPDI Isocyanurate 70%, in BA 11.9 360 Desmodur blocked grades Desmodur Isocyanate Type Supply form % NCO (supply form) Equivalent weight BL 1100 TDI Blocked polyisocyanate Solvent-free (3.0)blocked 1,400 BL 1265 MPA/X TDI Blocked polyisocyanate 65% in MPA/X, 1:1 (4.8)blocked 875 BL 3175 SN HDI Blocked polyisocyanate 75% in SN (11.1)blocked 378 BL 3272 MPA HDI Blocked polyisocyanate 72% in MPA (10.2)blocked 410 BL 3370 MPA HDI Blocked polyisocyanate 70% in MPA (8.9)blocked 470 BL 3475 BA/SN HDI/IPDI Blocked polyisocyanate 75% in BA/SN, 1:1 (8.2)blocked 510 BL 4265 SN IPDI Blocked polyisocyanate 65% in SN (8.1)blocked 519 PL 340 IPDI Blocked polyisocyanate 65% in MPA/SN, 1:1 60% in BA/SN, 18:22 (7.3)blocked 572 The values given are non-binding average values. Valid supply tolerances are given in the product information sheets. 12
IPDI-based/blocked grades Visc. at 23 C approx. mpa s Properties and applications 2,000 1,500 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 600 Visc. at 23 C approx. mpa s 43,000 20,000 3,300 2,700 3,800 1,000 11,000 600 Properties and applications With 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 with Desmophen products: hard yet elastic for stone-chip primers, baking primers and coil-coating primers In 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 In 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 In 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 In combination with Desmophen products for very reactive, weather-stable, non-yellowing baking systems for industrial finishing, plastics and coil and can coating In combination with Desmophen products for weather-stable, non-yellowing baking systems for industrial finishing and coil and can coating Crosslinker 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 13
Desmophen Desmophen polyesters I Desmophen Type Supply form % OH (supply form) Equivalent weight 650 MPA Branched polyester polyol 65% in MPA 5.3 320 651 MPA Branched polyester polyol 65% in MPA 5.5 320 651 MPA/X Branched polyester polyol 670 Slightly branched polyester polyol 67% in MPA/X, 1:1 5.5 310 Solvent-free, high viscosity 4.3 395 670 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 Solvent-free, 800 Highly branched polyester polyol 8.6 195 high viscosity 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 polyol Solvent-free, high viscosity 8.5 200 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 1300 BA 1300 X 1300 C Fatty acid-modified, branched polyester polyol Fatty acid-modified, branched polyester polyol Fatty acid-modified, branched polyester polyol Fatty acid-modified, branched polyester polyol Solvent-free 4.25 400 75% in BA 3.2 530 75% in X 3.2 530 75% in X 3.2 530 The values given are non-binding average values. Valid supply tolerances are given in the product information sheets. 14
Polyesters I Visc. at 23 C approx. mpa s 20,000 14,500 25,000 Properties and applications For weather-stable, colorfast and chemically resistant coatings, primarily for transportation and aircraft applications and high-grade industrial finishing Properties largely comparable with Desmophen 650; better compatibility with 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 products 2,800 2,750 3,000 For fast-drying, weather-stable coatings, especially for industrial and transportation applications 10,000 Weather-stable and colorfast special resin, e.g. to improve adhesion on PVC 850 (70% in MPA) 11,000 11,000 410 (at 75 C) 400 (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 In combination with other Desmophen products for 2K-PUR coatings 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) 3,600 (75% in X) 1,000 3,450 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 For fast-drying 2K coatings for wood, chipboard and fiberboard; for clear and pigmented primers, primer surfacers and topcoats 3,450 15
Desmophen Desmophen polyesters II Desmophen Type Supply form 1300 PR 1400 PR Fatty acid-modified, branched polyester polyol Fatty acid-modified, branched polyester polyol % OH (supply form) Equivalent weight 75% in X 3.1 548 1652 Linear polyester polyol Solvent-free 1.6 1,063 1700 Linear polyester polyol 1800 Slightly branched polyester polyol C 1200 C 2200 PL 300 PL 302/9 PL 800 PL 817 RD 181 BA RD 181 MPA RD 181 X RD 181 PR T 1665 Linear aliphatic polycarbonate/polyester polyol Linear aliphatic polycarbonate-diol Fatty acid-modified, branched polyester polyol Fatty acid-modified, branched polyester polyol Fatty acid-modified, branched polyester polyol Fatty acid-modified, branched polyester polyol Fatty acid-modified, branched polyester polyol Fatty acid-modified, branched polyester polyol Fatty acid-modified, branched polyester polyol Fatty acid-modified, branched polyester polyol Saturated polyester polyol 75% in MIBK 3.2 530 Solvent-free, medium viscosity Solvent-free, medium viscosity 1.3 1,310 1.8 945 Solvent-free 1.7 1,000 Solvent-free 1.7 1,000 60% in X 2.7 630 75% in X/EA 3.3 515 70% in X 2.5 680 75% in X/MEK 3.3 515 75% in BA 3.7 460 75% in MPA 3.7 460 75% in X 3.7 460 75% in X 3.6 472 65% in SN:IB, 31.5:3.5 1.7 1,000 T 1775 SN Saturated polyester polyol 75% in SN 2 850 Desmophen reactive thinners Desmophen Type Supply form % OH (supply form) Equivalent weight NH 1420 Aminofunctional reactive thinner Solvent-free 276 282 16 The values given are non-binding average values. Valid supply tolerances are given in the product information sheets.
Polyesters II/reactive thinners Visc. at 23 C approx. mpa s 7,250 13,000 11,000 17,500 21,500 15,000 2,050* 5,350 Properties and applications For fast-drying 2K coatings for wood, chipboard and fiberboard; for clear and pigmented 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 Flexibilizing resin for Desmophen /Desmodur combinations to improve toughness, durability and abrasion resistance of furniture, floor and parquet coatings For highly elastic coatings for rubber and plastic articles; also for elastic high-build, textile and hose coatings Primarily for roof and balcony coatings, membranes and sealants, plastics coatings incl. soft-touch; formerly Desmophen VP LS 2391 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 life 5,000 For highly transparent and reactive wood coatings with low application viscosity 1,500 10,000 For flexible wood coatings with good pigment wetting properties, high resistance to yellowing and low application For highly reactive wood coatings; for combination with highly condensed polyols to increase solids content 4,500 7,900 7,500 For 2K-PUR coatings for wood, e.g. boats and parquet; also for industrial applications and architectural topcoats; flexible and chemically resistant with good pigment wetting properties and high resistance to yellowing 12,500 2,700 Combination resin for baking primers, automotive primer surfacers, coil and can coatings and industrial coatings with very good weather stability 3,700 Co-reactant for blocked polyisocyanates for coil and can coatings at 75 C Visc. at 23 C approx. mpa s 900 2,000 Properties and applications As a co-reactant for Desmodur N products in the formulation of tough yet flexible, lightfast 2K-PUR floor coatings 17
Desmophen Desmophen acrylates Desmophen Type Supply form % OH (supply form) Equivalent weight A 160 X Hydroxyl-bearing polyacrylate 60% in X 1.6 1,060 A 160 SN Hydroxyl-bearing polyacrylate 60% in SN 1.6 1,060 A 165 BA/X Hydroxyl-bearing polyacrylate 65% in BA/X, 1:1 1.7 1,000 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 Desmophen polyethers Desmophen Type Supply form % OH (supply form) Equivalent weight 1730 ED Short-chain polyether Solvent-free 22 77 1380 BT Branched polyether Solvent-free 11.7 145 5028 GT Branched dispersion polyether Solvent-free 0.86 1,980 18 The values given are non-binding average values. Valid supply tolerances are given in the product information sheets.
Acrylates/polyethers Visc. at 23 C approx. mpa s Properties and applications 1,800 2,800 4,300 For weather-stable and colorfast industrial and anti-corrosion coatings and coatings for mineral substrates 3,750 2,300 3,000 5,000 4,500 4,000 1,000 3,500 2,400 8,500 3,500 4,500 For weather-stable and colorfast coatings, especially for industrial and transportation applications Weather-stable and colorfast universal resin with good pigment wetting properties for wood, industrial, transportation and anti-corrosion coatings Fast-drying universal resin with good resistance to NC and CAB for non-yellowing wood/furniture, industrial and automotive refinish coatings For flexible, weather-stable and colorfast coatings, especially for automotive refinishing 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) and good pigment wetting properties, primarily for automotive topcoats For high-gloss 2K-PUR coatings with good lightfastness and chalking resistance for automotive refinishing, transportation and industrial applications For inexpensive high-gloss 2K-PUR coatings with good lightfastness and chalking resistance for industrial applications Visc. at 23 C approx. mpa s 50 600 3,600 Properties and applications To improve the mechanical properties of solvent-free coatings, sealants and membranes; formerly Desmophen 250 U For solvent-free coatings with good chemical resistance; formerly Desmophen 550 U For elastic coatings and surface membranes; formerly Desmophen 1920 D 19
Desmodur /Desmophen Possible combinations with key Desmophen products 20 Desmophen Desmodur L Desmodur IL 1351 Desmodur IL 1451 Desmodur HL 650/651 670 680 690 800 850 1100 1145 1150 1200 1300 1652 1700 1800 RD 181 A 160/A 165/A 170 A 265 A 365 A 450 A 565 A 575 A 665 A 870 1380 BT Desmodur VL Desmodur VL 50 Desmodur VH 20 Desmodur N 100 Desmodur N 75 Desmodur N 3200
Combinations Standard combinations Theoretical possibilities that may be of interest for special requirements Desmodur N 3300 Desmodur N 3390 Desmodur N 3400 Desmodur N 3600 Desmodur N 3790 Desmodur BL 1265 Desmodur BL 3165 /3175 Desmodur BL 3272 Desmodur BL 3370 Desmodur BL 3475 Desmodur BL 4265 Desmodur Z 4470 Desmodur NZ 1 21
Desmotherm /Desmolac Desmotherm for PUR - baking coatings Desmotherm Isocyanate Type Supply form % NCO (supply form) 2170 MDI Self-crosslinking baking urethane resin 70% in BA/SN/IB, 13:12:5 blocked Desmolac Desmolac Type Supply form % OH (supply form) 2100 Non-reactive linear polyurethane based on MDI Solvent-free 4125 IP/T/MPA Non-reactive linear polyurethane based on IPDI 25% in IP/T/MPA, 37.5:28.5:9 4340 X/IB Non-reactive linear polyurethane based on IPDI 40% in X/IB, 51:9 The values given are non-binding average values. Valid supply tolerances are given in the product information sheets. 22
Equivalent weight Visc. at 23 C approx. mpa s Properties and applications 2,000 For 1K-PUR baking coatings (primers and primer surfacers) Equivalent weight Visc. at 23 C approx. mpa s 800 (30% in MEK) Properties and applications For primers or finishes for flexible substrates 12,000 7,500 Alone or in combination with polyisocyanates for primers or finishes for flexible substrates Alone or in combination with polyisocyanates for primers or finishes for flexible substrates; lower viscosity than Desmolac 4125 23
Desmocap /Specialities Desmocap Desmocap Isocyanate Type Supply form % NCO (supply form) 11 TDI Branched prepolymer with blocked isocyanate groups Solvent-free (2.4)blocked 1180 TDI 1190 TDI Branched prepolymer with blocked isocyanate groups in plasticizer Branched prepolymer with blocked isocyanate groups in plasticizer 80% in Disflamoll TOF 90% in Adimoll DO (1.9)blocked (2.2)blocked 12 TDI Linear prepolymer with blocked isocyanate groups Solvent-free (1.6)blocked Specialities Isocyanate Type Supply form Functionality Desmodur LD HDI Isocyanate of low functionality Solvent-free - NCO 11.8% Desmodur MT MDI Prepolymer Solvent-free - NCO 16.8% Hardener DT Diamine Solvent-free - NH Hardener OZ Urethane bisoxazolidine Solvent-free - NH/OH Hardener VP LS 2959 Urethane bisoxazolidine Solvent-free - NH/OH Soft Resin P 65 Non-reactive polyester 65% in MPA The values given are non-binding average values. Valid supply tolerances are given in the product information sheets. 24 24
Equivalent weight Visc. at 23 C approx. mpa s Properties and applications 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 40,000 For elastic coatings and sealants; for the flexibilization of epoxy resins; stronger flexibilizing effect than Desmocap 11 Equivalent weight Visc. at 23 C approx. mpa s Properties and applications 360 75 250 900 Improves the storage stability of pigmented, moisture-curing aliphatic 1K-PUR coatings Improves the storage stability of pigmented, moisture-curing aliphatic 1K-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 25 25
Legend Explanation of the abbreviations used in this brochure BA Butyl acetate EA Ethyl acetate DBE Dibasic ester HDI Hexamethylene diisocyanate IB Isobutanol IP Isopropanol IPDI Isophorone diisocyanate MDI Diphenylmethane diisocyanate MEK Methyl ethyl ketone MIBK Methyl isobutyl ketone MPA 1-Methoxypropylacetate-2 SN Solvent naphtha T Toluene TDI Toluene diisocyanate X Xylene VP LS... XP... Trialproducts 26
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www.bayercoatings.com Bayer MaterialScience AG Coatings, Adhesives & Sealants 51368 Leverkusen Germany www.bayermaterialscience.com info@bayercoatings.com 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 contained 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