Demande de catalogue

C LAC
ontents
Introduction Features & Benefits Performance in Low VOC Systems Substrate Wetting Contaminated Surfaces Elimination of Surface Defects Enhanced Gloss Low Energy Surfaces Improved Adhesion Additional Performance Benefits Improved Flow & Leveling Color Uniformity Resistance to Foaming Applications Incorporation & Use Typical Properties Regulatory Compliance Appendix Formulations

I

ntroduction
Manufacturers reformulating to meet the challenges of VOC regulations can benefit from the performance contributed by Troysol LAC. Many of the VOC's that are present in standard waterborne coatings help to reduce the surface tension of the coating. As the VOC levels drop, deficiencies and defects increase for waterborne coatings. Troysol LAC substantially reduces surface tension, providing low VOC coatings with strong surface wetting properties and enabling uniform coverage over low energy and contaminated substrates.

TroysolTM LAC is a multipurpose, silicone-free additive that improves substrate wetting, coating flow and leveling, adhesion, gloss, and color uniformity in aqueous coatings and adhesives. The use of Troysol LAC is particularly effective in the development of VOC compliant coatings in which the absence of solvent creates the need for enhanced control of coating surface properties and the elimination of surface defects, such as crawling and cratering.

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eatures & Benefits
Table 1

TroysolTM LAC is a highly effective substrate wetting additive that can help formulators achieve enhanced performance in many different applications for aqueous coatings. Coatings formulators have found Troysol LAC to be a valuable addition to their formulations, because the product provides many benefits (Table 1). Troysol LAC is suggested for use in aqueous systems in which improved coating properties related to wetting are required. Examples of contamination include oil, grease, soap, wax, and lubricants. Troysol LAC provides formulators with the confidence that their waterborne coatings can be used in many difficult applications. The use of Troysol LAC in formulations may reduce the number of product complaints resulting from use over poorly prepared surfaces.

Benefits of Troysol LAC
Effective in wetting low energy surfaces Elimination of craters, crawling, & fisheyes Improved gloss Improved adhesion Improved flow & leveling Superior color acceptance for inorganic & organic pigment Effective at low concentrations

P
25 20 g/l 15 VOC 10 5 0

erformance in Low VOC Systems
Exhibit 1

Troysol LAC Contributes Less VOC at Optimized Use Level

Aqueous coatings benefit from co-solvents such as glycols and glycol ethers. The low surface tensions of these co-solvents enhance the wettability of the coating. Yet, these co-solvents contribute to VOC emissions. As levels of VOC and co-solvents decrease, there is an increased need for wetting additives. Troysol LAC offers formulators improved wetting, excellent flow and leveling, and more consistent color acceptance, all of which enhance coating properties in low VOC systems. Troysol LAC also provides maximum performance at low use levels, resulting in low contributions to VOC levels (Exhibit 1).

0.30% Troysol LAC

0.75% Acetylenic Diol

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ubstrate Wetting
Exhibit 2

Wetting is the ability of a coating to make intimate molecular contact with a substrate. TroysolTM LAC enables a coating to completely and evenly cover a substrate without crawling, flooding, floating, or variations in film thickness. Superior wetting is enabled with the unique chemistry of Troysol LAC, which dramatically reduces surface tension and improves the covering of low energy and contaminated surfaces (Exhibit 3). Results show (Exhibit 2) that the incorporation of Troysol LAC offers the best wetting performance compared with competitive additives in wet films of a zero VOC semigloss coating applied over oil contamination.

Troysol LAC Provides Superior Wetting over Oil Contamination
Excellent

Low VOC Semi-Gloss Paint - Formulation 2 5 4 3

Wetting Scale

2 1

Legend
Troysol LAC Polysiloxane Acetylenic Diol

Troysol LAC Improves the Wetting of Contaminated & Hydrophobic Surfaces · · Surfaces contaminated with oils, lubricants, fats, or wax Plastics, including polyethylene, plexiglass, vinyl, acrylonitrile butadiene styrene (ABS), high density polyethylene (HDPE), modified polyphenylene oxide (PPO), nylon, & polycarbonate Galvanized, plated, or other metal surfaces Alkyd painted surfaces Chalky surfaces Concrete and asphalt Resinous wood

0
Poor

0.3

0.5
Use Level - % wt/wt

0.7

· · · · ·

Exhibit 3

Troysol LAC Enables the Coating of Contaminated Surfaces

Ineffective Coating Results without a Wetting Additive

Lower Surface Tension

Contamination Substrate

Higher Surface Tension

Contamination Substrate

4

Exhibit 4

Contaminated Surfaces
Troysol LAC facilitates the wetting of surfaces contaminated with substances such as oil and wax. As results illustrate (Exhibit 4), 0.5% Troysol LAC enables a low VOC acrylic semi-gloss coating to completely and evenly cover a substrate contaminated with oil, while the coating without the wetting additive shows severe crawling.

Troysol LAC Resists Crawling in Coatings Applied over Oil Contamination

Elimination of Surface Defects
The ability of Troysol LAC to impart excellent wetting characteristics and improve coating integrity and appearance makes the product especially valuable to manufacturers whose customers apply coatings to frequently contaminated or under-prepared surfaces. Troysol LAC offers premium wetting performance that renders a coating more durable and robust. By promoting complete covering of surfaces, Troysol LAC enables the coating to resist the formation of surface defects, such as crawling, cratering, and fisheyes.

Control

With 0.5% Troysol LAC

Exhibit 5

Troysol LAC Enhances Gloss
Low VOC Semi-Gloss Paint - Formulation 2
72

Gloss @ 60°

70

68

Enhanced Gloss
The addition of some specialty additives may interfere with the development of coating gloss. Troysol LAC, however, enhances gloss and enables formulators to achieve the desired coating appearance. Test results show the gloss advantage of Troysol LAC in a low VOC semi-gloss coating (Exhibit 5).

66 64

0.3

0.5
Use Level - % wt/wt

0.7
Legend
Troysol LAC Polysiloxane Acetylenic Diol

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S
ubstrate Wetting
Control
7 6

Exhibit 6

Troysol LAC Promotes Strong Adhesion
Low VOC Acrylic Copolymer System

Peel Strength 5
(pounds per 4 linear inch)

3 2 1 0 0.0% 0.1% Optimum Performance Level 0.2% Use Level % wt/wt 0.3% 0.4%

Legend
Control Troysol LAC Acetylenic Diol

With Troysol LAC

Low Energy Surfaces
Troysol LAC significantly enhances a coating's ability to cover difficult-to-coat substrates, such as wax, glass, and plastics. Troysol LAC possesses a unique chemistry that promotes nearly universal substrate wetting.

Improved Adhesion
Troysol LAC offers notable improvements in coating adhesion. Exhibit 6 shows 180° peel strength results of a polymer containing Troysol LAC versus one containing acetylenic diol. Results demonstrate that Troysol LAC imparts a greater degree of adhesion in a low VOC system, while acetylenic diol does not enhance adhesion. The graph also shows there is an optimum use level for Troysol LAC in terms of adhesion. Exhibit 7

A

dditional Performance Benefits
Excellent 10 8 Surface 6 Smoothness Leveling Index 4

Troysol LAC Provides Superior Leveling*
Low VOC Flat Paint - Formulation 1

Improved Flow & Leveling
The enhanced flow and leveling imparted by Troysol LAC ensure that the coating is uniform, maintains integrity, and has superior surface appearance, including gloss. Relative leveling performance of Troysol LAC versus competitor additives is shown in Exhibit 7. Results show that Troysol LAC imparts better leveling in a low VOC flat paint.

Legend
Control Troysol LAC Polysiloxane Acetylenic Diol

2 Poor 0

0.1

0.3

0.5

0.7

Use Level - % wt/wt
* ASTM D4062, Standard test method for leveling of paints by draw-down method

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Color Uniformity
TroysolTM LAC promotes excellent pigment wetting and brings out true colors in all types of aqueous coatings. The rub-up test demonstrates the ability of Troysol LAC to impart the desired color to the coating film. The competitive wetting additive and control exhibited poor color acceptance. Troysol LAC offers the ability to achieve color uniformity in coatings. Test results show that in a low VOC semi-gloss coating, color change was negligible with Troysol LAC, while the addition of competitor additives resulted in significant loss of color uniformity (Exhibit 8). Exhibit 8

Troysol LAC Excellent Color Uniformity
Interior Semi-Gloss Paint - Formulation 3

Control
DL+ Db+

Acetylenic Diol
DL+ Db+

Troysol LAC
DL+ Db+

Da-

-1.2

-0.9

-0.6

-0.3

0.3

0.6

0.9

1.2

Da+ Da-

-1.2

-0.9

-0.6

-0.3

0.3

0.6

0.9

1.2

Da+ Da-

-1.2

-0.9

-0.6

-0.3

0.3

0.6

0.9

1.2

Da+

DbDL-

DbDL-

DbDL-

DL = -0.13 Da = -0.50 Db = -0.33

DL = -1.00 Da = 0.32 Db = 0.42

DL = -0.01 Da = 0.00 Db = -0.01

True Color

Control

True Color

with Acetylenic Diol

True Color

with Troysol LAC

Colorimetry results in Exhibit 8 are plotted in 3D CIELAB color space, with the correct color at the origin of the three axes. CIELAB color differences are defined as follows: white to black (L), green to red (a), and blue to yellow (b). Ideally, the color measured in a rub-up test will lie at the intersection of the three axes.

As can be seen in Exhibit 8, the coating containing Troysol LAC registers on all three scales at the intersection of the axes, representing no deviation from the standard. In the control scenario and in the coating containing Polysiloxane, significant deviation from the standard is visible in the greater distance of the measurements from the intersection of the axes. This true color match achieved with Troysol LAC and the inferior results of the control and Polysiloxane can also be seen in the representation of the actual rub-up test.

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dditional Performance Benefits
Exhibit 9

Troysol LAC Minimizes Foaming
Low VOC Flat Interior Paint - Formulation 1
12

Resistance to Foaming Tests in a low VOC flat interior coating show that the incorporation of TroysolTM LAC results in the least amount of foaming (Exhibit 9) among those products that are also effective substrate wetting agents in that formulation.

10 8 % Air 6 4 2 0
Control Troysol LAC Dioctyl Sodium Sulfosuccinate Polysiloxane

Use Level 0.3% wt/wt

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pplications
Important additional benefits of Troysol LAC include its broad compatibility and silicone-free composition, making the product valuable to paint formulators working with a variety of applications. Troysol LAC offers excellent performance in:

· Low and zero VOC coatings · Alkyds, stains, and varnishes · Maintenance coatings · OEM coatings · Architectural & decorative enamels · Adhesives · Paper, paperboard, labels, inks, and adhesives involving contact with food · Flexographic and gravure inks · Print varnishes

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ncorporation & Use

TroysolTM LAC is most effective if added at the end of the manufacturing process. The product is a water-dispersible liquid and can be incorporated with mild agitation. Use Levels Troysol LAC generally provides excellent results in low VOC coatings at concentrations of 0.3-0.7% based on total formulation weight. The actual use level of Troysol LAC required is formulation specific. The selection of the individual components of the formulation, the pigment volume concentration (PVC), and the substrate to be coated all have an influence on the amount of product needed. All suggested use applications should be evaluated for final product surface appearance and stability prior to commercialization. Suggested application levels are based on laboratory evaluations and are typical for the use areas indicated. Suggested use levels are reported as percent by weight of the total formulation.

T

Table 2

ypical Properties

Typical Properties
Appearance: .................................. Pale yellow liquid % Non-Volatile By Weight: .......................................50 Specific Gravity (25°C) g/cc: ................................1.05 Viscosity (Gardner) (25°C): ..................................... C Color (Gardner): ........................................................5 pH (25° C): .................................................................7 Flash Point (ASTM D56-77): ..............230°F (>110°C)

Typical properties of Troysol LAC are listed in the accompanying table (Table 2). These properties are intended to provide general guidance, not purchase specifications. For additional information, contact a Troy representative or e-mail customerservice@troycorp.com.

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Table 3

egulatory Compliance

US FDA Compliance
21CFR 175.105. . . . . . . . . . . . . . . . . . . . . . Adhesives 21CFR 175.125. . . . . . . Pressure Sensitive Adhesives 21CFR 176.170. . . . . . Component of Paper/Board in contact with Aqueous and Fatty Food 21CFR 176.180. . . . . . Component of Paper/Board in Contact with Dry Food 21CFR 178.3400. . . Emulsifiers and/or Surface Active Agents

Troysol LAC meets the requirements of government and regulatory bodies worldwide. Troysol LAC complies with US FDA (Food & Drug Administration) regulations under the sections listed in Table 3. Contact a Troy representative for information on your specific application.

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ppendix

Formulation 1

Formulation 2

Low VOC Interior Flat with Airflex EF811 Vinyl Acetate Ethylene Copolymer
Raw Material Grind
Water KTPP Tamol 850 AMP-95 Igepal CO-630 Troykyd® D726 Rohm & Haas Dow / Angus Stepan Troy Troy Kerr McGee Engelhard Omya World Minerals 14.10 0.10 0.80 0.20 0.30 0.20 0.30 12.30 8.80 13.20 4.00

Low VOC Exterior Semi-Gloss Acronal Optive 130 Acrylic Emulsion
Raw Material
Water Natrosol Plus 330 PA Tamol 165 Troykyd D729 Mergal K10N Tiona 596S Pangel S-9 Aqualon Rohm & Haas Troy Troy Millennium Chemicals

Supplier

% by Weight

Supplier

% by Weight
13.73 0.03 0.55 0.25 0.30 31.70 0.20

Mergal® K10N Tronox CR828 Mattex Snowhite 12 Celite 281F

Grind 15 minutes then add:
Acrysol RM2020 NPR Rohm & Haas 2.25

Mix 5 minutes then add:
Acronal Optive 130 BASF 48.50

Grind to 4+ Hegman Letdown
Airflex EF811 Troykyd D726 Natrasol MR (2% solution) Water Polyphase® 678 Troy Troy Eastman Air Products Troy Aqualon 14.00 0.20 23.55 6.25 1.00 0.30 0.40

Mix 5 minutes then add:
Troykyd D704 Polyphase 663 Troysol LAC Macol 85 Acrysol RM-8W Troy Troy Troy BASF Rohm & Haas 0.30 1.10 0.50 0.20 0.40

Total

100.00

TroysolTM LAC Texanol

Total

100.00

Formula Constants
Density, lbs/gal ..................................................... 11.34 Viscosity, Stormer, KU .............................................. 93 Viscosity, ICI, poise ................................................. 0.8 Weight Solids, %....................................................... 46 Volume Solids, % ...................................................... 27 PVC, %...................................................................... 66 VOC, g/l .................................................................... 30

Formula Constants
Density, lbs/gal ...................................................... 10.6 Viscosity, KU ............................................................. 85 Viscosity, ICI ............................................................ 1.0 Weight Solids, %....................................................... 50 Volume Solids, % ...................................................... 38 Gloss, 60° ................................................................. 67 PVC, %...................................................................... 21 VOC g/l ............................. (Actual VOC = 8 g/l) ~0

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Formulation 3

Formulation 4

Low VOC Exterior Semi-Gloss with Rhoplex SG30 Acrylic Emulsion
Raw Material
Tiona 596S Water Propylene glycol Mergal® K10N Rhoplex SG-30 Texanol Polyphase® 678 Troykyd® D704 Ammonium Hydroxide 28% Acrysol RM-2020NPR Acrysol SCT-275 TroysolTM LAC Water Rohm & Haas Rohm & Haas Troy Troy Rohm & Haas Eastman Troy Troy

Low VOC Interior Semi-Gloss with Airflex EF811 Vinyl Acetate Ethylene Copolymer
Raw Material Grind
Water 9.20 Aqualon Rohm & Haas Dow / Angus Troy Troy Kerr-McGee Imerys Engelhard 4.40 0.25 0.25 0.20 0.30 18.60 2.00 0.20 Natrosol Plus 330 (3% solution) Tamol 1124 (50%) AMP-95 Troykyd D729 Mergal K10N Tronox CR828 CamelWITE Attagel 50

Supplier
Millennium Chemicals

% by Weight
30.85 7.50 3.30 0.30 47.50 1.20 1.20 0.30 0.10 1.60 0.75 0.50 4.90

Supplier

% by Weight

Letdown
Airflex EF811 Water Troykyd D704 Ropaque OP-96 Troysol LAC Polyphase 678 Acrysol RM-6 Acrysol TT-935 Diethylene Glycol Butyl Ether Troy Rohm & Haas Troy Troy Rohm & Haas Rohm & Haas Air Products 42.00 11.75 0.30 6.90 0.50 0.10 1.55 1.00 0.50

Total

100.00

Total

100.00

Formula Constants
Density, lbs/gal ....................................................10.55 Viscosity, Stormer, KU ..............................................97 Viscosity, ICI, poise .................................................1.1 Weight Solids, %.......................................................48 Volume Solids, % ......................................................34 Gloss, 60° .................................................................70 PVC, %......................................................................22 VOC, g/l ..................................................................150

Formula Constants
Density, lbs/gal ....................................................10.22 Viscosity, Stormer, KU ..............................................99 Viscosity, ICI, poise .................................................1.2 Weight Solids, %.......................................................46 Volume Solids, % ......................................................36 PVC, %......................................................................30 VOC, g/l ....................................................................26

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ervices
An ISO 9001:2000 and ISO 14001:2004 Certified Company

As a Performance Partner, Troy offers a variety of services to support our product line of preservatives and additives to meet customer needs and provide market solutions. Troy invites you to take advantage of the Troy services that can help you achieve your market objectives. · Technical Service representatives can provide formulation assistance, product evaluation, and microbiological, analytical, and field testing to assist you in developing an optimum formulation that meets your product objective. Regulatory support is offered globally with regional and national expertise to meet your needs. R&D scientists constantly work to anticipate future industry needs and develop innovative technology. Contact your Troy representative to discuss your unique requirement that may not be met by materials currently on the market. In fact, Troy may have just what you need already under development and if not, may be able to work with you to achieve your objective. A global supply network is in place to ensure product availability and fast delivery. Contact your local representative to ensure the product you need is available when you need it.

TROY TR OY T R OY
Troy Corporation
8 Vreeland Road Florham Park, NJ USA 07932 973-443-4200 973-443-0843 Canada 905-760-7902 905-760-7904 Europe 31-10-592-7494 31-10-592-8877 Asia Pacific 66-2-361-4515 66-2-361-4520 Brasil 55-115575-0090 55-115575-9080 Middle East & Africa 44-162-878-1800 44-162-867-6600 For further information visit our website:

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