Colorgalv With Clearcoat - Architectural Color Finish For Painting Hot Dip Galvanized Steel From Duncan Galvanizing MA

COLORGALV® WITH DUNCAN CLEARCOAT℠

COLORGALV® provides a patented factory-applied architectural color finish for painting hot dip galvanized steel..

Colorgalv With Duncan Clearcoat
To protect the hue and brightness of the topcoat color, Colorgalv is available with our Duncan Clearcoat℠ service.

Steel Corrosion Protection In Your Choice Of Colors
With Duncan Colorgalv with Clearcoat, your steel corrosion protection color range is virtually unlimited. Download our pdf color chart to see our extensive color selection.

Put COLORGALV With Clearcoat To Work For You
Call Duncan Galvanizing at 1-800-638-1011 and incorporate this patented galvanized steel painting process into your project specs.

Need a specification? See below or click here to download in MS Word format.

Colorgalv Clearcoat Short Form Specification

2.XX HOT-DIP GALVANIZING AND FACTORY-APPLIED ARCHITECTURAL FINISH WITH CLEARCOAT - COLORGALV CLEARCOAT

A. Hot-Dip Galvanizing: Provide coating for iron and steel fabrications applied by the hot-dip process, Duragalv℠ by Duncan Galvanizing. Comply with ASTM A 123 for fabricated products and ASTM A 153 for hardware. Provide thickness of galvanizing specified in referenced standards. The galvanizing bath shall contain special high grade zinc, nickel, and other earthly materials.

B. Galvanizing shall exhibit a rugosity (smoothness) not greater than 4 rug (16-20 microns of variation) when measured by a profilometer over a 1 inch straight line on the surface of architectural and structural elements that are less than 24 pounds per running foot. Profilometer shall be capable of operating in 1 micron increments.

1. Surface blasting prior to application of factory-applied post galvanizing wet coatings will produce a high rugosity and not be acceptable.

C. Architectural Finish: Provide factory-applied architectural coating over hot-dip galvanized steel, Colorgalv® by Duncan Galvanizing matching approved samples.

1.      Primer coat shall be factory-applied prime coat. Apply primer within 12 hours after galvanizing at the same facility where the galvanizing is done in a controlled environment meeting applicable environmental regulations and as recommended by the primer coating manufacturer.
2.      Finish coat shall be factory-applied color-pigmented architectural finish. Apply finish coating at the galvanizer’s plant, in a controlled environment meeting applicable environmental regulations and as recommended by the finish coating manufacturer.
3.      Coatings shall be certified VOC compliant and conform to applicable regulations and EPA standards.
4.      Apply the galvanizing, primer and coating within the same facility and provide single-source responsibility for galvanizing, priming and finish coating.
5.      Blast cleaning of the galvanized surface is not acceptable.

D. Performance Criteria: Coatings must meet or exceed the criteria for the following categories as stipulated by the coatings manufacturer:

1. Primer:
ABRASION - Method: ASTM D 4060 (CS17 Wheel, 1,000 grams load).
ADHESION - Method: ASTM D 3359, (Method B, 5 mm Crosshatch).
HUMIDITY - Method: ASTM D 4585
SALT SPRAY (FOG) - Method: ASTM B 117
PENCIL HARDNESS
FLEXIBILITY
2. Topcoat:
ABRASION - Method: ASTM D 4060 (CS17 Wheel, 1,000 grams load).
ADHESION - Method: ASTM D 3359, (Method B, 5 mm Crosshatch).
GRAFFITI RESISTANCE - Method: The following graffiti materials applied to coating and allowed to dry for seven days: acrylic, epoxy-ester and alkyd spray paints, ballpoint ink, crayon, Markett marker, black shoe polish and lipstick.
EXTERIOR EXPOSURE - Method: Exposed at 45 degrees facing south
SURFACE BURNING CHARACTERISTICS: - Method: ASTM E-84
QUV - Method: ASTM G 53 (ES-40 bulbs, 4 hours light, 4 hours dark)
SALT SPRAY (FOG) - Method: ASTM B 117
PENCIL HARDNESS
FLEXIBILITY

E. Clearcoat: Provide factory-applied clear coating over primed and coated galvanized steel, Duncan Clearcoat℠ by Duncan Galvanizing.

1. Performance Criteria: Coatings must meet or exceed the criteria for the following categories as stipulated by the coatings manufacturer:
ABRASION - Method: ASTM D 4060 (CS17 Wheel, 1,000 grams load).
ADHESION - Method: ASTM D 3359, (Method B, 5 mm Crosshatch).
GRAFFITI RESISTANCE - Method: The following graffiti materials applied to coating and allowed to dry for seven days: acrylic, epoxy-ester and alkyd spray paints, ballpoint ink, crayon, Markett marker, black shoe polish and lipstick.
WEATHERING: - Method: ASTM D 1014, 45 degrees south; Method: ASTM D 4141C EMMAQUA-NTW
QUV - Method: ASTM G 53 (FS-40 bulbs, 4 hours light, 4 hours dark)
SALT SPRAY (FOG) - Method: ASTM B 117
FLEXIBILITY – Method: ASTM D 522 (Method B, Cylindrical Mandrel)
HARDNESS: Method: ASTM D 3363 (Pencil)

F. Quality Assurance for Hot-Dip Galvanizing and Factory-Applied Metal Coatings:

1.      Galvanizing shall be performed by a company with a minimum of ten years experience in the successful application of hot-dip galvanizing utilizing the dry kettle process.
2.      Factory-applied metal coatings shall be performed in a facility acceptable to the coating manufacturer.
3.      Submit two 3 inch by 6 inch samples of factory-applied coatings and colors proposed for use for approval prior to coating application.
4.      Engage the services of a galvanizer who has demonstrated a minimum of ten years experience in the successful performance of the processes outlined in this specification in within the same facility as outlined herein. The Architect has the right to inspect and the facility where the work is to be doneand who will apply the galvanizing and coatings approve or reject the galvanizer/galvanizing facility.
5.      Handle and install materials with factory-applied coatings as recommended by galvanizer and coating manufacturer to prevent damage to coatings prior to and after installation.
6.      Touch-up factory-applied metal coatings as recommended by galvanizer and coating manufacturer.
7.      Coatings not matching approved submittals shall be removed and replaced at no additional expense to the Owner.
8.      Certificate of compliance that the galvanizer has certified weighers on premises with a certification from the local municipality, and a certified scale or municipal scale has been utilized by the galvanizer.
9.      Fabricator shall provide a notarized statement from the galvanizer, along with a description of the material processed, indicating that all work has been done in conformance with this specification prior to receiving payment.
10.     Certificate of Compliance for Shop Drawing Review by Galvanizer: Submit galvanizer's certification that shop drawings for metal fabrications to receive metal coatings have been reviewed and that fabrications are acceptable to galvanizer for proper application of galvanizing and metal coatings. All drawings should be stamped by the galvanizer to indicate approval of design for galvanizing.
11.     Substitutions shall not be considered unless approved by Architect, Owner/Owner's Representative and Contractor. Substitution requests shall be accompanied by proof that the substitution meets or exceeds the performance, aesthetic and durability requirements of the specified Duncan process. Coatings not matching approved submittals shall be removed and replaced at no additional expense to the Owner
12.     Galvanizer/coater shall supply a certificate of compliance that all coatings have been performed in accordance with QP-3 standards and procedures.