Product Brochure

United States
Tel: [phone]
800.816.7809
Fax: [phone]
Technical Services
Tel: [phone]
www.tnb.com
B-107
Overview
GoldGalv
®
The standard GoldGalv
®
finish is made up of a multi-step zinc
electrogalvanizing process. The Trivalent Chromium finish is applied over
the zinc, producing a chemically bonded non-porous barrier for protection
from moisture and air. The .5 mil electro-plated zinc and gold Trivalent
Chromium finish provides all of the features and protection of Hexavalent
Chromium without the use of the chemical.
Formed Hot
Rolled Steel
Electro-Plated
Zinc Coating
Yellow Trivalent
Conversion Coat
Finishes
Salt Spray Hours
Metal Framing Channel Finish
Corrosion-Resistant Testing, ASTM B117
Industry
Enamel
Green
Epoxy
Green
Industry
Pre-Galvanized
G90
EG-
SilverGalv
®
Trivalent
GoldGalv
®
1100
1000
900
800
700
600
500
400
300
200
100
0
Tank 1
Tank 9
Tank 2
Tank 10
Tank 3
Tank 11
Tank 4
Tank 12
Tank 5 Tank 6 Tank 7 Tank 8
“Soak Degreasing” “Electro Cleaner” “Rinse” “Sulfuric Acid Bath”
Chemical solution
removes bulk of oil
and grease buildup.
The metal is
negatively charged
to remove minute
surface particles.
Live, clear
water rinse.
Prepares the metal
by etching the
surface for the
zinc application.
“Rinse” “Zinc Tank” “Rinse” “Rinse”
Live, clear
water rinse.
Electrically applies
the zinc metal
coating.
Chemically treated
rinse water.
Live, clear water
rinse.
“Rinse” “Chromium Dip” “Rinse” “Dryer”
Live, clear
water rinse.
A yellow trivalent
conversion coat
is applied to
the zinc.
Live, clear
water rinse.
Hot air is forced
around strut
until dry.
Metal Framing & Cable Tray — Superstrut
®
Metal Framing System