How to Use GulfCoat Contractor Series Coil Coating

Surface must be free of grease, rust and wax. Prior to coating, follow these steps:

  1. Clean coils with appropriate cleaner- use GulfCoat Surface Prep
  2. Rinse with clean water
  3. Allow coil to thoroughly dry
  4. Mask off or protect areas from overspray.
  5. Allow product can to warm to room temperature.

For TransBlue and TransGold using a spray gun application

GulfCoat TransBlue or TransGold coatings are water based, and must be applied at a minimum wet layer thickness of approximately 3 mils resulting in a dry layer thickness of 1 mil, (thickness of a human hair). Air atomization pressure should be 80‐100 psi using a tight spray pattern at 4 inches of distance away from the coil. All areas of the coil should be sprayed in both horizontal and vertical directions. Special attention using extra layers and spray angles will need to be required when coating copper headers, u‐bends and hairpins to ensure proper coverage. After both vertical and horizontal spray patterns have been completed, a final overall wide-angle spray shall be completed to ensure uniform coverage and fin edge buildup.

GulfCoat TransBlue & TransGold are water based corrosion resistant coatings that are environmentally friendly and will provide the ultimate in corrosion protection. GulfCoat coatings provide a HVAC COIL coating system for added corrosion protection on aluminum and copper finned RTPF and MCHX coils. GulfCoat coatings help to reduce the accelerated corrosion of HVAC coils. By following the coating and maintenance instructions, end users should expect extended life cycles and keep the energy consumption to a nominal level.

Application Method:

Spray using compressed air and conventional HVLP spray gun. Mix well before and during application. Brush and roll applications are not recommended.

Storage

If stored in the original closed container in a cool dry place, the shelf life is 12 months.

Pot Life

This single component coating does not have a pot life as it can be re‐used. If you have unused coating left that has not been sprayed, it can be returned to the original container and sealed.

Drying Time
  • @80°F & Relative Humidity 70%
  • Touch 10 minutes
  • Handle 20 minutes
  • Re‐coat 30 minutes
  • Full Cure 48 hours
Cleaning Process

The coil to be coated shall have all areas accessible in an effort to properly clean, dry and coat the coil. Wet the coil with water first then apply a diluted neutral degreaser/coil cleaner. If possible, complete a thorough pressurized hot water wash & rinse until the coil rinse water is clear of bubbles and/or foam. If only cold water is available thru a garden hose then complete this wash/rinse cycle twice.

Drying Process

After the cleaning process, the coil should be blown out and dried to reduce contamination from minerals in the water and to facilitate a quicker turnaround time. Using a powered blower or clean dry compressed air, blow out all excess water from the coil until dry. A heat gun or hair dryer may accelerate the drying process if required.

Spray Application

Prior to the coating application the coil must be clean and completely dry. Luvata Translucent coatings must be applied at a minimum wet layer thickness of approximately 3 mils resulting in a dry layer thickness of 1 mil, (thickness of a human hair). Air atomization pressure should be 80‐100 psi using a tight spray pattern at 4 inches of distance away from the coil. All areas of the coil should be sprayed in both horizontal and vertical directions. Special attention using extra layers and spray angles will need to be required when coating copper headers, u‐bends and hairpins to ensure proper coverage. After both vertical and horizontal spray patterns have been completed, a final overall wide angle spray shall be completed to ensure uniform coverage and fin edge buildup.

Equipment Clean‐Up

After the spray coating has been completed, the spray equipment will need to be disassembled and cleaned. Any excess coating that was not used shall be poured back into its original container and the lid sealed. Water will be used for the spray equipment clean‐up. Disassemble the paint equipment in an effort to allow for the rinsing and cleaning of paint wetted parts. Small bottle brushes may be required to scrub and clean the affected parts. Please refer to the equipment manufactures instructions for proper disassembly and cleaning.



PRODUCT INFORMATION

Product Number:

WRA‐LC‐020 WRA‐YC‐025

Product Name:

TransBlue, TransGold

Physical Properties:
  • Viscosity: 30 +‐ 5 seconds #3 Zahn Signature @ 78F
  • 60+‐ 10 seconds Ford #4 @ 76F (CA Technologies P#97‐9101)
  • Weight: 8.56 +/‐ .15%
  • Gloss: 60º: 85+ Minimum
  • Solids: Weight: 32.12 +/‐ 2%
  • Volume: 30.14 +/‐ 2%
  • Grind: N/A
  • Flash Point: 201°F
  • Coverage: Sq.Ft/Gal (flat work).: 355 @ 1 Dry Mil. (Assuming No Loss)
  • Coverage: Sq.Ft/Gal (coil face area).: 50 @ 1 Dry Mil. (Assuming No Loss)
  • V.O.C. LB/GL: 0.34 Including water, 1.00 Excluding water.
  • pH: 8.0‐8.50
  • Method of Application: Spray (mix well before and during application)
  • Application Temperatures: Minimum 55oF – Maximum 100oF
  • NOTE: Temperature must be 5 Degrees above dew point prior to spraying
  • Cure Temperatures: Minimum 55oF – Maximum 120oF
  • Cure Method: Air Dry
  • Reductions: None
  • Clean‐up: Water when wet, acetone if dry
Comments:

Do not allow product to freeze

Meets RoHS and REACH requirements Resistance to: Corrosion Resistance

GulfCoat Contractor Series Coil Coatings have a robust synthetic multi-polymer resin backbone that is suitable for most environments and will maintain its appearance after many years exposure to the elements.

UV Degradation

Built in enhanced UV inhibitors form a protective barrier throughout the paint film. As a result, UV degradation of individual polymer molecules are reduced and the film integrity maintained.

Gloss Retention

A high gloss finish is applied that is smooth, limits dirt and debris buildup and allows for easy equipment cleaning.

(pick up chart from PDF- Jamie has this) Product Description

GulfCoat Coatings are water-based and water-reducible synthetic flexible polymer ant-corrosion coating specifically designed for the protection of HVAC/R components and cabinetry. GulfCoat is formulated to improve adhesion, moisture resistance, UV protection and corrosion resistance.

Specifications

Heat exchanger (HX) coils shall have a water-based synthetic polymer coating spray-applied with no material bridging between fins. The spray coating process will ensure a uniform dry film thickness of 15-30 μm (0.6- 1.2 mils) and meet5B rating crosshatch adhesion per STM D3359-09. Corrosion durability will be confirmed through testing to no less than 3,000 hours salt spray resistance per DIN 53167 (ASTM B117-11) using aluminum and /or copper test coupons.

Applications Ideally Suited for GulfCoat
  • Heat Exchanger Coils (water, condenser, evaporator, DX)
  • Mini-Splits
  • Packaged Rooftops
  • Condensing Units
  • Modular Air-Handlers
  • Air-Cooled Chillers