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RE: Painting/Coating Structural Steel Exposed tothe Elements

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Hi Daryl
I can suggest to follow this procedure in order to paint above HDG steel 
elements: Galvanized Material Paint Preparation System
	1 The following system shall be used to coat all surfaces, other than bar 
grating, which have been previously hot dipped galvanized; including, but 
not limited to handrails, handrail sockets, ladders, stairways, cages, toe 
plates, guard rails, clips, heliport safety panels, etc.
	2 Surface Preparation
Surfaces must be clean and dry. Remove any and all oil, grease and other
contaminates with a non-residual leaving hydrocarbon cleaner/remover such
as Carboline #3 or equal from the surfaces to be coated prior to any 
blasting and/or coating.
NOTE: It is important to remove any and all evidence of the oily film 
residue that is on the surfaces of any galvanized steel.
SSPC-SP7 brush off blast finish (NACE No. 4) the surface of the galvanized
steel to obtain a 1.0 mil anchor profile.
	3 Prime Coat: Epoxy Primer - 3.0 to 5.0 mils D.F.T. Minimum solids content 
 to be 70% by volume.
	4 Finish Coat: Unmodified Aliphatic Acrylic Polyurethane Epoxy – 1.5 to 
2.0 mils D.F.T. Minimum solids content to be 65% by volume.
	5 Paint System:
Intermediate Finish
Primer Coat Coat
Paint P-03 ----- F-01
D.F.T. (mils) 3.0 to 5.0 ----- 1.5 to 2.0 mils
Total D.F.T. 4.5 to 7 mils
If Carboline products are selected, use Carboline Carbothane 134 Series
products, including 134, 134 HS or 134 HG

-----Original Message-----
From: seaint-seaosc(--nospam--at) [mailto:seaint-seaosc(--nospam--at)] On 
Behalf Of h.d.richardson(--nospam--at) Sent: Sunday, July 28, 2013 10:32 PM
To: seaint-seaosc(--nospam--at)
Subject: Re: [SEAINT-SEAOSC] Painting/Coating Structural Steel Exposed 
tothe Elements

        Oh, really?  Well, you would know better than me.



----- Original Message ----- From: "T.William (Bill) Allen, S.E."
To: <seaint-seaosc(--nospam--at)>
Sent: Sunday, July 28, 2013 10:42 AM
Subject: RE: [SEAINT-SEAOSC] Painting/Coating Structural Steel Exposed to 
the Elements

> Hi, Daryl.
> That certainly wasn't true of the steel fence in my back yard! It
> started to rust in less than two years.
> T. William (Bill) Allen, S.E. (CA #2607) University of Southern

Truncated 1711 characters in the previous message to save energy.

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