Sherwin-Williams® CM0578520 JET GLO® Polyurethane Hardener - Gallon Can

Indent only: ETA 2 weeks

Surface Preparation

Primed Surface
Jet Glo® should be applied to a surface that has been coated with an approved, properly prepared and applied Sherwin- Williams Aerospace primer system.

Refer to Sherwin-Williams Primer Product Data Sheets (such as Corrosion Primers CM0483660 and CM0724400 and Sanding Surfacers CM0482300, CM0560563 and CM0560566); training guides; and your Sherwin-Williams Representative for complete details.

Topcoat Surface
For best adhesion of trim colors to the cured urethane base coat, a thorough scuff sanding is recommended. Scuff sanding and cleaning will assure long-term durability and adhesion of the applied coating. Refer to Sherwin-Williams’ process and training guides for cleaning.

Mixing Instructions

Shake color component for 10-15 minutes before admixing.

Admix by Volume:

1 Part Jet Glo® Color (U-Color Numbers)
1 Part Jet Glo Hardener CM0578520Add the Hardener into the Color Component.

Admixed product should be allowed a 30-minute induction time for optimum application performance.

Reduce to desired application viscosity with approximately 10-15% thinner. For a three-coat application, use up to 1-1/2 to two times the amount of reducer. (i.e. if adding a quart, then add 1-1/2 to two quarts of thinner for a three coat shoot.)

When the relative humidity exceeds 65%, it is recommended to replace 25% of the thinner blend with urethane grade MEK (CM0110308).

It is recommended to filter strain admixed and reduced paint before placing material in containers for spraying.

CM0120975 Accelerator can be used for quick drying times on stripes, registration numbers, and logos. Maximum dosage should be 1/2 fluid ounce per admixed gallon (15 mL per admixed 3.8 Liter).

Application

This product can be applied using conventional air spray equipment, HVLP, Graco Pro 4500 air electrostatic, or Graco Pro 4500 air assisted airless electrostatic. Please consult your Sherwin-Williams representative for specific equipment settings.

1. Make sure pots, guns, and lines are purged and cleaned.
2. Mix thoroughly and filter strain before spray applying.
3. Spray atomizing pressure: 50-60 psi (3.45-4.15 bar)
   Pot pressure: 10-12 psi (0.69 – 0.83 bar) using a 60’ fluid hose (3/8” diameter)
   Delivery Rate: 8-10 fluid oz (236-295 mL) per minute
4. Always air-blow and tack-wipe the surfaces to be painted. Assure that the aircraft is properly grounded for potential static buildup.
5. Best application results are obtained by applying two medium wet coats, allowing a 30-45 minute “tack-off” period between coats.
6. If the dry time between coats exceeds 24 hours, the surface should be thoroughly abraded.
7. Recommended dry film thickness is 2-3 mils (50-75 microns). Some colors may require thicker films to achieve complete hiding.

NOTE: Application of these product systems requires recommended temperature / humidity conditions and film thickness ranges. The material, hangar, and aircraft skin temperature should be no lower than 55ºF / 13ºC before, during, and after application.

Drying Schedule

Dry times are based on the dry film thickness of 2-3 mils (50-75 microns).

Air Dry Times (75°F / 25°C and 50% RH)
To Tape (Unaccelerated): 16-18 Hours
To Tape (Accelerated): 2-3 Hours

Recoat Time: 24 Hours Maximum

NOTE: Lower temperatures, heavy film thickness, improper activator range selection and poor air movement will extend the dry time.

Equipment Cleanup

Use clean Ketone–type solvents such as CM0110308 MEK. Do not allow material to cure inside equipment.