Sherwin-Williams JETFlex™ Single Component Water Reducible Polyurethane Dispersion

Sherwin-Williams Jet Glo® Express™ Conventional Paint With actual performance similar to solvent-based polyurethanes, JETFlex? Water-Reducible Polyurethane Dispersion is particularly reliable for plastic, metal and composite finishes. It offers outstanding solvent and chemical resistance. This low VOC, one-component coating is ideal for cabin interior reworks where solvent emissions can be an issue.

Benefits

• No free isocyanates ? eliminates health hazard
• No flash point or fire hazard
• Performance similar to solvent-based polyurethanes
• One package ? no catalyst
• Excellent hardness
• Easy to use
• Free of lead and chrome hazards
• Good solvent and chemical resistance
• Meets the performance criteria set forth in FAA FAR 25.853 regulation for burn, smoke and heat release
• Quick delivery ? even on small quantities

Surface Preparation

General: Surface should be free of grease, dirt, fingerprints, rust and other foreign matter to insure optimum adhesion.

Plastic: Clean thoroughly to remove contaminants and mold release agents. Use isopropyl alcohol or other suitable solvent cleaner. If necessary, prime with JetFlex™ Primer CM0480930 to obtain adhesion. JetFlex® WR Spray Fil CM0481505 may be used for adhesion and filling on plastic substrates. Test system integrity before use or consult your Sherwin-Williams aerospace representative for additional information.

Metals: Chemical treatment such as Zinc or iron phosphate is recommended. Prime with JetFlex® Primer CM0480930 if required.

Mixing Instructions

JetFlex® WR is a single component product. No mixing is required. Material should be stirred prior to using. Do not shake.

Water reducible coatings should be applied at high viscosity. They atomize very easily at higher viscosity. Do not use a viscosity cup to measure viscosity. ONLY USE DI WATER FOR REDUCING VISCOSITY.

Application

Basecoat / smooth coats may be applied by conventional, airless, air assisted airless, HVLP or electrostatic methods. Texture coats must be applied using conventional or HVLP spray. Please consult your Sherwin-Williams representative for specific equipment settings.

1. Always air-blow and tack-wipe the surfaces to be painted. Assure that the aircraft is properly grounded for potential static buildup.
2. Make sure pots, guns, and lines are purged and cleaned.
3. Mix thoroughly and filter strain before spray applying. Keep container closed to prevent skinning of this fast dry coating.
4. Use the following settings.

   Conventional Spray – Smooth Coat
   Air pressure - 40-60 psi (2.75–4.15 bar)
   Fluid pressure - 10-12 psi (0.69–0.83 bar)
   Cap/tip - 797/FF
   DI water reduction - as needed up to 10-25%

   Conventional Spray – Texture Coat
   Air pressure - 25-35 psi (1.75–2.40 bar)
   Fluid pressure - 5-15 psi (0.35-1.05 bar)
   Cap/tip - 797 or 765/FF
   DI water reduction - as needed up to 10%

   HVLP – Smooth Coat

   Gun - Binks Mach 1
   Atomizing air - 40-65 psi (2.75-4.50 bar)
   Fluid pressure - 6-10 psi (0.41-0.69 bar)
   Cap/tip - 95P/97
   DI water reduction - 10-25%

   HVLP – Texture Coat

   Atomizing air - 20-30 psi (1.38-2.07 bar)
   Fluid pressure - 6-15 psi (0.41-1.05 bar)
   DI water reduction - 0-10%

5. Product should be applied at temperatures above 50°F.
6. Best application results are obtained by applying two medium wet coats. Allow 10-15 minutes flash off of basecoat before applying texture coat.
7. Recommended dry film thickness is 1.2-1.6 mils (30 -microns) – Wet 3-4 mils (75-100 microns). A minimum of 1.1 mils (28 microns) dry film thickness is required for good adhesion and film integrity.
8. To apply in a texture finish, catalyze and reduce a maximum of 10%. Adjust the air and fluid pressures when spraying to create texture. Texture pattern is dependent on equipment setup, viscosity, and operator technique.
9. To lower the gloss of a color, use CM0981496 JetFlex WR Flattening Paste.

NOTE: Application of these product systems requires recommended temperature / humidity conditions and film thickness ranges.

Drying Schedule

Dry times are based on the dry film thickness of 1.2 mils (30 microns).

Air Dry Times (75°F / 25°C and 50% RH)
To Touch: 20-30 minutes
To Handle: 40-50 minutes
To Pack: Overnight

Force Dry (140°F/ 60°C)
Dry Through: 30 minutes

For optimum hardness and cure, allow 2-4 weeks of air-drying for 1.5 –2.0 miles (38-50 microns) dry film. Heavier mils may require 6-8 weeks. Full cure is attained after 48 hours of additional air-drying.

NOTE: Good air movement and humidity control is necessary for proper drying of water reducible coatings. Cure test is 100 double rubs with MEK, slight burnishing.

Equipment Cleanup

Clean equipment and lines immediately with water. If dried, clean with a blend of water and ammonia as soon as possible. Only use after cleaning, Ketone grade solvents to clean equipment to prevent rusting.

NOTE: Because of the many types and compositions of plastic available, each user should test the coating on each substrate before production use. Customers must also verify FAR/JAR 25.853 regulation compliance on their substrate and system.

Eighteen month shelf life is applicable only for materials stored in unopened and undamaged original factory filled containers.

Minimum Storage Temp: 40ºF / 4ºC. Avoid freezing. Freezing may destroy product.
Maximum Storage Temp: 100ºF / 37ºC