Hollow Metal Doors & Frames

Fire Labelling Guide - Fire Door Frames

Fire Labelling Guide - Hollow Metal Fire Doors

Why Choose W.C.G.S.
Wipe coat galvanized steel provides the extra margin of corrosion resistance while still maintaining versatility at low cost.

Engineered to provide excellent paint adherence with no special pre-painting treatment, wipe coat galvanized steel producers recommend that primer painting not be used as it only encourages moisture entrapment.

ASTM Test Procedure D-1735: Test results above wereconductedin standard humidity cabinet at 100% relative humidity at 100F The products were not specially treated in any way. They were scored through to bare steel and exposed in accordance with ASTM test procedure D1735 The complete failure of the electro galvanized sample in dramatic contrast to the virtually compared wipe coat galvanized steel. Conclusive results above clearly indicate the superior corrosion resistance of wipe coat galvanized steel.

Wipe Coat Galvanized Steel

Salt - Fog Test on Painted Panels: In this test ASTM-B117 panels were subjected to a 5% NcCl non acidualted salt spray at 95F The pre treatment used was a zinc phosphate and the paint was a two coat baked system with a modified silicone alkyd top coat (10 mil total paint thickness). Even with a first class paint system underfilm corrosion occurs on electro-galvanized steel much earlier than on wipe coat galvanized steel.

Reasons to Specify Wipe Coat Galvanized Steel:

• Competetive to cold-rolled and elctro galvanized steel in initial purchasing costs.
• Engineered to provide excellent paint adhesion eliminating costly pre-painting treatments and primer painting.
• Life expectancy far exceeds cold rolled primer painted steel (ASTM D2247 test procedure).
• Provides durability and overall minimal maintenance.
• Readily fabricated without damage to protective coating.