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Desothane® HS anti-chafe topcoats/CA 8100 series

Description Desothane® HS anti-chafe topcoats are polytetraflouroethylenefilled polyurethane, chemically cured, and VOC compliant. Desothane® HS anti-chafe topcoats have high gloss and are primarily used on surfaces where low friction, abrasion resistance, impact resistance, and chemical resistance are required to reduce chafing and wear. Examples of these areas are slats, exit door areas, flap tracks, and horizontal-fuselage intersections. Desothane® HS anti-chafe topcoats are designed to be applied over an epoxy primer to provide maximum performance. Desothane® HS anti-chafe topcoats have excellent abrasion resistant, long term durability, excellent appearance and are easy to apply in a variety of environmental conditions, including high temperature and humidity. Desothane® HS anti-chafe topcoats are compatible with all spray equipment and can be applied by brush or roller. For further details on application parameters, consult the Desothane® HS anti-chafe application guide or contact your local PPG Aerospace PRC-DeSoto Application Support Center at 1-800-AEROMIX. Desothane® HS anti-chafe topcoats/CA 8100 series are qualified to the following OEM specifications: · BMS 10-86 Type I, II, & III Grade D · BAC 5710 Type 27 Desothane® HS anti-chafe topcoats are compatible with the following primers: · BMS 10-11 Type I · BMS 10-79 Type III · DMS 1786 · DMS 2104

Desothane® HS anti-chafe topcoats/ CA 8100 series

Application properties (typical) Volatile organic compound (VOC), EPA method 24, mixed system 420 g/l max. Mix ratio 2:1:1 Mix ratio (by volume) CA 8100/XXXXX* (base) 2 parts CA 8100B (activator) 1 part CA 8100C (thinner) 1 part Note: *Denotes color description CA 8101 for Type II Viscosity, #4 Ford cup Fresh mixed 18 to 22 sec. Pot life 45 sec. max. Pot life @ 77°F (25°C) Type I 2 hours, min. Type II 30 minutes, min. Type III 3 hours, min. Dry through @ 77°F (25°C), @ 5 to 10 mils (125 to 250 microns) Type I & Type III 3 to 4 hours Type II 2 hours Dry to fly @ 77°F (25°C), 10 mils (250 microns) Type I & III 10 hours Type II 8 hours Dry to ultimate cure @ 77°F (25°C) 7 days Dry film density 0.0070 lbs/ft2 @ 1.0 mil dry film (34 g/cm3 @ 25 microns dry film) Theoretical coverage 890 ft2/gal @ 1.0 mil dry film (21.8 m2/l @ 25 microns dry film) Spray equipment Compatible with all forms of spray equipment and can be applied by brush or roller. Color Type I & Type II- available in BAC 700 (BAC 7067) and BAC 707 Type III - available in livery colors Shelf life 12 months from date of manufacture

PRC-DeSoto International, Inc. 5454 San Fernando Road, PO Box 1800 Glendale, California 91209 (818) 240 2060 Fax (818) 549 7771

Date issued: 7/03 Supersedes: 5/02

Desothane® HS anti-chafe topcoats/CA 8100 series

Performance properties (typical) Service temperature -65°F to 350°F (-54°C to 176.7°C) Abrasion resistance Taber abraser (wear index 5-25) Scrape-adhesion test Surface shall not be broken Fluid resistance BMS 3-11 (LD-4), 30 days @ 75°F (23.9°C) MIL-H-5605 hydraulic fluid Distilled H2O Weather resistance UV-CON 300 hours, minimum 60 unit gloss Luster, 60 degree 70 units minimum for Type III Conforms Conforms Conforms Health precautions This product is safe to use and apply when recommended precautions are followed. Before using this product, read and understand the PRC-DeSoto International "Safe Handling Guide" for aerospace coatings and the Material Safety Data Sheet (MSDS), which provide information on health, physical and environmental hazards, handling precautions, and first aid recommendations. An MSDS and the Safe Handling Guide are available on request. Avoid overexposure. All mixing and spraying must be conducted with adequate ventilation and proper personal protective equipment as recommended. Obtain medical care in case of extreme overexposure. For industrial use only. Keep away from children. Conforms Conforms For emergency medical information call 1-651-632-9265 (from anywhere globally) or 1-800-228-5635 (from within the USA and Canda only). For sales and ordering information call 1-800-AEROMIX (237-6649).

Conforms 2H pencil Conforms

Note: The application and performance property values above are typical for the material, but not intended for use in specifications or for acceptance inspection criteria because of variations in testing methods, conditions, and configurations. Storage life Inspect the condition of the container to ensure compliance to FED-STD-141, Method 3011.1. The material should be stored at temperatures between 40°F and 115°F (4.4°C to 46.1°C) to ensure shelf life.

For emergency medical information call toll free 1-800-228-5653. Desothane and DeSoto are trademarks of PRC-DeSoto International, Inc., registered with the U.S. Patent Office. All recommendations, statements, and technical data contained herein are based on tests we believe to be reliable and correct, but accuracy and completeness of said tests are not guaranteed and are not to be construed as a warranty, either expressed or implied. User shall rely on his own information and tests to determine suitability of the product for the intended use and assumes all risks and liability resulting from his use of the product. Seller's and manufacturer's sole responsibility shall be to replace that portion of the product of this manufacturer which proves to be defective. Neither seller nor manufacturer shall be liable to the buyer or any third person for any injury, loss, or damage directly or indirectly resulting from use of, or inability to use, the product. Recommendations or statements other than those contained in a written agreement signed by an officer of the manufacturer shall not be binding upon the manufacturer or seller. Printed in U.S.A.

Desothane® HS A n t i - C h a f e To p c o a t s

CA 8100 Series Application Guide

W h e r e S m a r t S o l u t i o n s Ta k e F l i g h t TM

Specifications

BMS 10-86 Types I, II, and III Grade D BAC 5710 Type 27

Use

Desothane® HS CA 8100 series high solids anti-chafe topcoats are polytetrafluoroethylene (PTFE) filled, abrasion resistant polyurethanes that have been formulated for use over PPG Aerospace, PRC-DeSoto primers. These topcoats reduce chafing and wear on surfaces where a low friction coating is required.

Be sure all mixing and measuring containers are clean and free of contamination. Paper mixing cups must not have a solvent soluble (i.e. wax) lining. These linings will contaminate the coating. Do not use thinners or flow control agents from other manufacturers. Other thinners or flow control agents may contain material(s) that can degrade the cure, adhesion, or appearance of the CA 8100 anti-chafe topcoat. All components should be mixed at the proper ratio to achieve the optimum performance properties and the correct VOC. Failure to mix properly will affect the application characteristics and film properties. Shake the base component for 10 minutes on a paint shaker or stir thoroughly until there is no solid material on the bottom of the can. Mix Ratio: 2:1:1 (by volume) Base: CA 8100 (Types I & III), CA 8101 (Type II) Activator: CA 8100B Thinner: CA 8100C When mixing, always add components in the order shown on the label. Mixing Instructions Slowly add one (1) volume CA 8100B activator component to two (2) volumes CA 8100 series base component. Add one (1) volume of CA 8100C thinner component. Mix well for 5 minutes until homogeneous. Always add components slowly while agitating. Stir the topcoat slowly when in use. Do not under thin or over thin the topcoat. Desothane® HS anti-chafe topcoats were formulated to yield a smooth finish as mixed. Too much thinner may cause sagging; too little thinner will cause orange peel.

Surface Preparation Before To p c o a t i n g

A thorough surface preparation and cleaning before priming is extremely important to obtain a topcoat with good gloss, adhesion and fluid resistant properties. For detailed surface preparation procedures before priming, consult your local PPG Aerospace, PRC-DeSoto representative. If the primer surface has surface defects such as dry spray or visible dust particles, hand scuff with abrasive pads. Remove dust and debris with a mild solvent, or solvent blend, such as DesocleanTM 110 cleaner. A urethane compatible tack rag may be used to remove dust on the surface. Do not use excessive pressure when using a urethane compatible tack rag. Tack rag residue can be left on the primer surface and cause craters or swirl marks. Never use a tack rag wet with solvent. If the PPG Aerospace, PRC-DeSoto primer is less than 72 hours old, the topcoat can be applied without any further surface preparation. Ensure the surface is clean prior to applying any topcoat. If the PPG Aerospace, PRC-DeSoto primer is over 72 hours old, lightly scuff the surface with abrasive pads or 240-grit (or finer) sandpaper. Remove any dust or debris with a mild solvent or solvent blend such as DesocleanTM 110 cleaner then wipe dry with a lint-free cloth. Do not allow the solvent to dry on the surface. A urethane compatible tack rag may also be used to remove the dust or debris.

Pot Life

Desothane® HS anti-chafe topcoats are ready to apply as soon as thoroughly mixed. An induction time is not required. Freshly mixed Desothane® HS anti-chafe topcoat has the best appearance. Strain the material through a fine nylon cloth to remove any particles that may have been introduced during mixing or measuring. The pot life of a mixed topcoat depends on temperature and type (Table 1). Higher temperatures will shorten the pot life. Discard any unused material that has exceeded its usable pot life. A topcoat that has exceeded its usable pot life may still have a low viscosity, but will develop severe orange peel and microblistering.

Material Inspection Prior To U s e

Inspect containers for damage during shipping. The condition of the curing solution (Activator) is important. Do not use a curing solution (Activator) whose container is bulging or if the solution is hazy or contains gelled particles. These are all indications of moisture contamination. The solution should be clear.

C A 8 1 0 0 A n t i - C h a f e To p c o a t Pot Life at 77°F (25°C)

Table 1

BMS 10­86 Pot Life (Minimum)

To p c o a t M i x i n g

Note: It is important to condition the paint for 24 hours prior to mixing by placing in the shop or hangar, with ambient temperatures between 55° to 95°F (13° to 35°C). The minimum temperature of the paint components should be 55°F (13°C) prior to mixing.

Type I Type II Type III

2 hours 30 minutes 3 hours

Dry Times at 77°F (25°C), 8 to 10 mils (200 to 250 microns) dry film thickness

Table 2

Coatings Type Dust Free Tack Free Dry through Dry-to-fly

Type I & Type III Type II

11/2

hours

3.25 hours 2 hours

51/4 31/10

hours hours

10 hours 8 hours

45 minutes

Note: Allow 1-hour solvent evaporation before baking. Allow minimum of 3 hours solvent evaporation before baking at 160°F or higher.

To p c o a t A p p l i c a t i o n

These topcoats can be sprayed, rolled or brushed. A minimum dry film thickness of 5 mils (125 microns) is required to obtain optimum abrasion resistance. Roller Application It is recommended to use a 3" or 9" solvent resistant foam roller. A Mohair roller is not recommended because it can add fibers to the finish. It is important to load the foam roller with paint to displace the air in the foam cells. This will help reduce the bubbles. Roll freshly mixed topcoat in two or three coats to a dry thickness of 5.0 to 10.0 mils (125 to 250 microns). In a two or three coat application, it is important to allow the first coat to "tack up" before application of subsequent coats (approximately 45 to 60 minutes at 77°F [25°C]). Tacking up means the paint WILL transfer to the finger, but there should be resistance as the finger is pulled off the surface. The surface will feel like the sticky side of masking tape. If the next coat is applied before the previous is tacky, there will be sagging. If the previous coat is allowed to dry completely (no transfer to the finger), then the next coat may have difficulty wetting out the previous coat. Spray Application Apply 4 to 5 uniform medium single coats to a total dry film thickness of 8.0 to 10.0 mils (200 to 250 microns). The time between coats should be 15 to 30 minutes at 77°F (25°C). Higher temperatures will require less time between coats. It is important to allow each coat to "tack up" before applying subsequent coats.

The following application recommendations are for temperatures that exceed 86°F (30°C): 1. Do not add accelerator to the paint. 2. Avoid excessive film build up, which may cause microblistering. 3. Allow each coat to tack up before applying the subsequent coats. 4. Use freshly mixed paint for each coat. The following application recommendations are for temperatures below 68°F (20°C): 1. Avoid excessive film build, which can cause sagging. 2. Allow each coat to tack up before applying the subsequent coats.

R e p a i r i n g T h e To p c o a t

To repair the topcoat, sand the rework area with 280-grit (or finer) sandpaper. Feather all edges. Wipe the surface with a mild solvent, or solvent blend, such as DesocleanTM 110 cleaner to remove any dust or debris. If any bare metal is showing, touch up with a clear chromate conversion coating and re-apply recommended PPG Aerospace, PRC-DeSoto primer in those bare areas. Allow primer to cure before applying Desothane® HS anti-chafe topcoat. Apply Desothane® HS anti-chafe topcoat to the required film thickness.

Spray Equipment

Desothane® HS CA 8100 anti-chafe topcoats are formulated for Electrostatic Air, HVLP and Conventional spray equipment. Below are recommended tip sizes and pressure settings. The final appearance depends on many factors. In general, small particles will create a smoother film with less orange peel.

Adjustments For Application Conditions

The optimum application range temperature for Desothane® HS antichafe topcoats is from 68° to 86°F (20° to 30°C).

Spray Equipment: Recommended Tip Sizes and Pressure Settings

Table 2

Equipment Type Tip Size Pot Pressure Atomization Pressure at the Cap

Electrostatic Air Spray Gun Electrostatic Air Assisted Airless Spray Gun High Volume Low Pressure Spray Gun (HVLP) Conventional Air Spray Gun

1.2 mm or 1.5 mm (or equivalent)

16 to 20 psi (1.1 to 1.4 bar)

45 to 60 psi (3.1 to 4.1 bar)

#611 or #613 (Graco® Nomenclature)

700 to 1800 psi (48 to 124 bar)

40 to 50 psi (2.8 to 3.5 bar)

1.0 to 1.4 mm (or equivalent) 1.2 to 1.8 mm (or equivalent)

10 to 20 psi (0.69 to 1.4 bar) 10 to 20 psi (0.69 to 1.4 bar)

10 psi maximum (0.69 bar)* 45 to 60 psi (3.1 to 4.1 bar)*

Note: 1 psi = 0.0689 bar *Spraying in excess of 10 psi at the air cap will cause "dry spray" with HVLP spray equipment.

continued on back page

Fluid Flow Rate

To determine fluid flow rate of spray equipment, turn off the atomizing air at the pump. Enclose the air cap of the spray gun with a solvent resistant plastic bag. If more than one gun is being used from one pump, then both triggers must be pulled to draw pressure from the pump. Pull the trigger on the enclosed gun for 15 seconds. Remove the bag and transfer all the captured paint into a graduated container. Multiply the contents by 4 and this will be the flow rate per minute. The suggested flow rate to minimize sagging and orange peel is 8 to 12 ounces (227 to 340 milliliters) per minute. The flow rate can be adjusted by increasing or decreasing the fluid pressure or by changing the tip size.

Clean Up

Clean spray equipment as soon as possible after use. Flush spray equipment with a strong ester or ketone solvent, or solvent blend, such as DesocleanTM 45 cleaner. PPG Aerospace, PRC-DeSoto polyurethane topcoats are chemically reacting systems that are not soluble in solvents after they have cured. For this reason, equipment should be cleaned as soon as possible after application and always before the material has cured. Even freshly applied coatings will deposit a film on the equipment that does not dissolve easily. Agitation with a brush or clean cloth will help to remove these deposits.

Health And Safety

This product is safe to use and apply when recommended precautions are followed. Before using this product, read and understand the PPG Aerospace, PRC-DeSoto "Safe Handling Guide" for aerospace coatings and the Material Safety Data Sheet (MSDS) for information on health, physical and environmental hazards, handling precautions and first aid recommendations. An MSDS is available on request. Avoid overexposure. All mixing and spraying must be conducted with adequate ventilation and proper personal protective equipment as recommended. Obtain medical care in case of symptoms of overexposure as outlined in Section III of the Material Safety Data Sheet (MSDS).

Air Pressure Settings

In order to achieve 45 to 60 psi (3.1 to 4.1 bar) atomization pressure at the gun, the regulated pressure at the mixing pot should be set higher to compensate for pressure losses. Table 3 below shows regulator pressure requirements for different hose lengths.

Table 3

Air Hose Length Air Regulator Pressure

4 feet (1.2 meters) 15 feet (4.6 meters) 25 feet (7.6 meters) 36 feet (11.0 meters) 50 feet (15.2 meters) 75 feet (22.9 meters) 100 feet (30.5 meters)

45 psi (3.1 bar) 50 psi (3.4 bar) 55 psi (3.8 bar) 65 psi (4.5 bar) 70 psi (4.8 bar) 85 psi (5.9 bar) 100 psi (6.9 bar)

FOR INDUSTRIAL USE ONLY. KEEP AWAY FROM CHILDREN. EMERGENCY MEDICAL INFORMATION IN THE U.S.A. AND CANADA: 1-800-228-5635. EMERGENCY MEDICAL INFORMATION (GLOBAL): 1-651-632-9265. EMERGENCY SPILL CONTROL IN THE U.S.A.: 1-800-424-9300 (CHEMTREC). EMERGENCY SPILL CONTROL INFORMATION IN CANADA: 1-613-996-6666 (CANUTEC).

All recommendations, statements, and technical data contained herein are based on tests we believe to be reliable and correct, but accuracy and completeness of said tests are not guaranteed and are not to be construed as a warranty, either expressed or implied. User shall rely on his own information and tests to determine suitability of the product for the intended use and assumes all risks and liability resulting from his use of the product. Seller's and manufacturer's sole responsibility shall be to replace that portion of the product of this manufacturer which proves to be defective. Neither seller nor manufacturer shall be liable to the buyer or any third person for any injury, loss, or damage directly or indirectly resulting from use of, or inability to use, the product. Recommendations or statements other than those contained in a written agreement signed by an officer of the manufacturer shall not be binding upon the manufacturer or seller.

Where Smart Solutions Take Flight TM

PRC-DeSoto International, Inc. 5454 San Fernando Road Post Office Box 1800 Glendale, CA 91209 USA Telephone (818) 240-2060 Toll Free (800) AEROMIX Fax (818) 549-7798 www.ppgaerospace.com

Issued: 1/04 Supersedes: 8/03 Desoclean and Desothane are trademarks of PRC-DeSoto International, Inc. Graco is a trademark of Graco, Inc.

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0413 AG 8100

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