| Connect Follow us on Twitter Like us on Facebook
About | Subscribe | Advertise


Download our Free Top Contractors e-Resource Guide.

Problem Solving Forum

| More

January 2 - May 22, 2012

What is the most common or economical coating system for rehabbing the exterior of above-ground storage tanks?

More items for Coating Materials

Selected Answers

From Ron Lanter of Protec on July 26, 2011:
     Spot/Sweep blast,  then apply a full coat of epoxy like a Carboline 890 and then come back with another full coat of 890 and walk away. You said economical. Stay away from urethane. It's expensive and over-rated, and, trust me, it will fade in this heat.

From Tom Selby of Rodda Paint Corporation on May 19, 2011:
     Well, first test for lead in the old coatings on the tank. Then proceed with surface prep based on your findings. Clean and remove old coatings and corrosion. Apply a barrier coat of an anti-corrosive, high-solids, thin-film epoxy. Spot prime with an epoxy mastic the bare metal areas because these areas will fail sooner. Then full coat with a two-component polyurethane. There is no economical system because the real cost is in the labor. Don't be penny-wise and pound foolish.

From Gregory Berg of AEP on May 18, 2011:
Economical system:  HPWC Spot power-tool cleaning (SSPC- SP 3); touch up with  zinc-rich epoxy; and apply two coats of high-build acrylic. Common system: HPWC Spot power-tool cleaning (SSPC-SP 3); touch up with zinc-rich epoxy; apply an epoxy intermediate; apply a polyurethane or polysiloxane topcoat

From Billy Russell of D&R COATING INSPECTION on May 18, 2011:
A zinc/epoxy/polyurethane system is one  recommended a lot. I have used this system a lot with great success, although there are cheaper systems out there. This system, if applied right, has a great life span. Stripe-coat the weld seems between coats for added life span.

From M Ehab of North Valley on April 7, 2012:
     There is nothing easy and very low cost like applying 2 coats at 40 Microns DFT of aluminium-pigmented paint based on a flexible penetrating alkyd oil.

From Mike McCloud of Amex on April 23, 2012:
    Billy, I like that system, although we have used a pre-prime  instead of zinc and have tanks that are still holding up after 15-20 years.

From remko tas of Futuro SRL on April 11, 2012:
It depends on the relation of labour costs and paint prices in your country. In Bolivia, where labour is relatively cheap and epoxy and polyurethane paints are expensive, for overpainting exteriors that are not yet too rusty, the best economical option would be to manually sand the surface lightly and overcoat with alkyd paint.

Please sign in to submit your answer this question    

Tagged categories: Tank exteriors

Current PSF Question | Submit a PSF Question | Full PSF Archive

Carboline Company
Carboline is pouring with opportunities

We are proud of our exceptional products and services, and believe that people are our greatest asset. Come grow with us!

Hempel (USA) Inc.
Trusted worldwide for advanced protective coatings

Trusted worldwide
for advanced
protective, coatings
–Full range of 
  advanced coatings
–Optimised application
–Fast, reliable service  worldwide. Contact us at

Mitsubishi Gas Chemical America
Performance Amine 1,3-BAC

A highly reactive cycloaliphatic diamine offering superior performance. Reasonable cost and curing efficacy makes it suitable for all types of epoxy resin applications.

Sherwin-Williams General Polymers Resinous Flooring App

Our coatings and linings expertise available 24/7, allowing you to explore the Sherwin-Williams systems best suited for your flooring needs. Download the app today!

New resins from BASF will have metals loving water:

Excellent corrosion resistance, low VOC, high gloss, thin films

Wasser High-Tech Coatings Inc.
Wasser Coatings Protect

Wasser Coatings offer a complete range of Moisture Cure Urethane (NEPCOAT approved) systems in addition to Polyurea membranes and linings(NSF).

PPG Protective and Marine Coatings Group
We Protect and Beautify the World

PPG is widely recognized as a world leader in protective and marine coatings, developing innovative, cutting-edge products and services.

Jotun Paints Inc.
Jotachar JF750 - The Time Saving Solution

The only mesh free solution for jet fire scenarios. Jotachar saves installation time and material costs - the next generation of epoxy passive fire protection.

Clemco Industries Corp.
Powerful Protection in a Small Package

Mounts inside blast helmet, alerts operator to dangerous breathing-air condition by audible, visual, and vibratory alarms. Easily calibrated, battery operated.

SSPC: The Society for Protective Coatings

Join SSPC and Enhance
Your Career !

Technology Publishing

The Technology Publishing Network

The Journal of Protective Coatings & Linings (JPCL) PaintSquare
Durability + Design Paint BidTracker

EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us

© Copyright 2000-2016, Technology Publishing / PaintSquare, All rights reserved
2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951; Tel 1-412-431-8300; Fax 1-412-431-5428; E-mail