PRIMERGALV® is a factory applied universal primer for freshly galvanized steel which is to receive a field applied topcoat.

Ideal For Fast Tracking Projects
This process guarantees a tenacious bond between the galvanized steel and the prime coat and eliminates virtually all the problems associated with painting hot dip galvanized steel. It is the ideal process for those projects that are "fast-tracking" yet have not made a color selection or those projects where there is an inordinate amount of field welding.

Are You Painting Galvanized Steel?
With Primergalv, poor field touch-up is a thing of the past!

Put PRIMERGALV To Work For You
Call Duncan Galvanizing at 1-800-638-1011 and choose Primergalv before painting galvanized steel.

Need a specification? See below or click here to download in MS Word format. Other specification download available: Primergalv Thermoset.

2.2 HOT-DIP GALVANIZING AND FACTORY-APPLIED PRIMER - PRIMERGALV®

Click here to download in MS Word format.

1. Hot-Dip Galvanizing: For steel exposed to the elements, weather or corrosive environments and other steel indicated to be galvanized, provide coating for iron and steel fabrications applied by the hot-dip process.
   1. Basis-of-Design: Duragalv by Duncan Galvanizing.
   2. Comply with ASTM A 123 for fabricated products and ASTM A 153 for hardware.
   3. Provide thickness of galvanizing specified in referenced standards.
   4. Galvanizing bath shall contain special high grade zinc and other earthly materials.
   5. Fill vent holes after galvanizing, if applicable, and grind smooth.
2. Factory-Applied Primer over Galvanized Steel: Provide factory-applied prime coat, certified OTC/VOC compliant less than 2.8 lbs/gal. and conforming to EPA and local requirements. Apply primer within 12 hours after galvanizing at the same galvanizer’s plant in a controlled environment meeting applicable environmental regulations and as recommended by the primer coating manufacturer. Primer coat 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. Blast cleaning of the surface is unacceptable for surface preparation. Primer shall have a minimum two year re-coat window for application of finish coat. Coatings must meet or exceed the following performance criteria as stipulated by the coatings manufacturer:
   1. Basis-of-Design: Primergalv by Duncan Galvanizing.
   2. Abrasion Resistance: ASTM D 4060 (CS17 Wheel, 1,000 grams load).1kg load, 200 mg loss.
   3. Adhesion: ASTM D4541, 1050 psi.
   4. Corrosion Weathering: ASTM D5894, 13 cycles, 4,368 hours; rating 10 per ASTM D714 for blistering and rating 7 per ASTM D610 for rusting.
   5. Direct Impact Resistance: ASTM D2794, 160 in. lbs.
   6. Flexibility: Method: ASTM D522, 180 degree bend, 1 inch mandrel, passes.
   7. Pencil Hardness: ASTM D3363, 3B.
   8. Moisture Condensation Resistance: ASTM D4585, 100 degrees F, 2000 hours; passes, no cracking or delamination.
   9. Dry Heat Resistance: Method: ASTM D2485, 250 degrees F.
   10. Warranty: Provide galvanizer’s warranty that materials will be free from 10 percent or more visible rust for a period of 20 years.

Primergalv® is a registered trademark of Duncan Galvanizing.