GPX Global Polyester

  • Globally Available

  • Excellent Economic Supply

  • Stocking and Quick Match Programs Available

  • U.S. WARRANTY Coverage and Support

  • Custom Designed Systems for Rainware & Building Products

  • Long Term International Commercial and Industrial experience

System Overview

The GPX Global Polyester coil coating system manufactured and distributed globally by Continental Coatings Inc. and Yung Chi Paint and Varnish Manufacturing Company Ltd., is a Modified Polyester coil coating system engineered for interior and exterior applications that require long lasting performance and excellent economics. The GPX system can be applied single coat or as a two coat system depending on end use requirements and application specifics. The GPX system is formulated with a proprietary polyester resin polymer, which is economical, U.V. and weather resistant, and has primer like adhesion performance. GPX may be applied singlecoat or over the Universal PU-11 High Molecular Weight Urethane Primer or PU-30 High-build Urethane primer systems for extreme environment and long service life product applications.

Application Parameters

The GPX Global Polyester system is designed for trouble free high line speed coil coating line application and has been run worldwide under a very wide range of application parameters and substrate conditions. Standard topcoat DFT is .50 -.70 mils, however, custom low film and low temperature cure systems are available. GPX was formulated to provide very good stain, scratch, mar and scuff resistance, and is flexible enough for most tough fabrication applications.

Commercial Uses

The GPX system can be formulated in standard, medium, textured, and low gloss / low sheen finishes and supplied in a very wide range of colors and effects. This economic coating does carry a limited exterior warranty when required and can be applied to a variety of adequately cleaned and treated metal substrates including: Hot Dipped Galvanized, ZnAl, Galfan®, ZAM®, Aluminum, and Stainless Steels. GPX is formulated with an excellent balance of flexibility and hardness but can be custom modified for specific applications that require unique or special physical property performance. GPX system is ideal for many general interior and exterior applications like rain gutter and downspout, shade and shelter, Liner Panel, commercial doors, and various white goods including sign blank and lighting.

Regular Modified Polyester Coil Coating System





Application Method

Reverse Roll Coat


PU11 HMW PU, PU30 High Build PU


Aluminum, HDG, Galvalume®, ZAM®


Standard clean and treat

Chrome, Zinc Phosphate, or approved non-chrome

ASTM D 4138

Dry Film Thickness

Top coat: 0.5 to 0.7 mils

Primer: 0.0 to 0.3 mils

Total system: 0.5 to 1.0 mils

ASTM D 4212

Viscosity (No. 4 Zahn cup)

25 to 35 seconds

ASTM D 1475

Weight Per Gallon

9.0 to 12.0 Pounds Per Gallon

ASTM D 2697

Solids Per Volume

50 to 55%

ASTM D 2369

Solids Per Weight

60 to 75%

Reducing Thinner

Reducing Solvent


ASTM D 3960

VOC (Theoretical)

3.0 to 4.0 Pounds Per Gallon

Clean-up Solvent


Coating Mileage

1069 to 1357 Sq. Ft. / Gallon

Peak Metal Temperature

435 F to 450 F





ASTM D 523

Specular Gloss at 60

6 to 85

ASTM D 3363

Pencil Hardness


ASTM D 4145


1T to 4T with no loss of adhesion

ASTM D 5402

Solvent Resistance (MEK Rubs)

100 +

ASTM D 3359

Cross Hatch Adhesion

No loss of adhesion

ASTM D 2794

Reverse Impact

Galvalume or HDG: 3x metal thickness inch-pounds, no loss of adhesion

Aluminum: 1.5x metal thickness inch-pounds, no loss of


ASTM B 117

Salt Spray Resistance 1,000 hrs. Salt Spray Resistance 2,000 hrs.

Galvalume or HDG: Creep from scribe < 1/8 inch (3mm), none or few #8 blisters

Aluminum: Creep from scribe < Creep from scribe

< 1/8 inch (3mm), few #8 blisters

ASTM D 2244

ASTM D 4214

South Florida Exposure

Color: No more than 5 (E) Hunterunits at 90 vertical angle and 7 (E) unitsnon vertical

Chalk: Rating no less than 8 at 90 angle and 6 at non vertical angle

Film Integrity: 5 + years, no blisters, peeling or cracking

ASTM D 870

Water Immersion 100 F 168 hrs.

No field blisters with minimal color change

ASTM D 1308

Chemical Resistance (15 mins.)

No significant color change (color dependent)


Flame Spread Classification

Class I or A

ASTM D 968

Abrasion Resistance

Total Sand = 35 +/- 5 liters (Dft dependent)