PaintSquare.com
      | Connect Follow us on Twitter Like us on Facebook
About | Subscribe | Advertise
  

 

Download our free Transmission Pipeline Coating Systems eResource Book

Problem Solving Forum

| More

May 12 - May 16, 2014

When we use field splice plate connections on structural steel projects, how do we prevent rust and rust staining at bolt heads and at the splice plate/steel interface?



More items for Quality Control


Selected Answers

From Tom Schwerdt of Texas Department of Transportation on May 14, 2014:
Prime all structural steel, including faying surfaces with IOZ. Use A325 galvanized bolts. After installation, finish with your preferred midcoat and topcoat. In high-corrosion areas, consider stripe coating. Alternately, design the whole structure with weathering steel or ASTM A1010 as appropriate, with details such as drip tabs and/or bearing pans to prevent staining of the substructure.

From James Albertoni of CA Department of Water Resources on May 12, 2014:
A good approach would be to power-tool clean or blast the surfaces then use a sealant (compatible with the steel coating system) at the splice plate interface. Then apply a brush coat to the the interface and the the bolt heads. Then, lastly, apply the steel coating system over the entire splice plate assembly. All to often, though, we see the steel guys just slap some paint over it and call it good.

From Karen Fischer of Amstar of Western New York, Inc. on May 12, 2014:
On the vast majority of projects I've worked on that require this type of work, the replacement steel is required to come to the jobsite primed (or will be cleaned to SP-6 minimum and primed in the field). The interface (existing steel onto which it will be placed) is generally remediated for salts, cleaned to a minimum SP-6, and primed with a zinc primer (as specified) with the necessary slip co-efficient. A caulking material is used beneath the plate that is compatible with the coating system and is applied to reduce water infiltration under the slice plate after installation. Then the entire repair area receives the remainder of a zinc/epoxy/Urethane coating system, including the bolt heads.

Please sign in to submit your answer this question    

Tagged categories: Corrosion; Steel


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

KTA-Tator, Inc. - Corporate Office
KTA Online
Instrument Catalog

• Any Manufacturer
• Any Instrument
• Any Time
Visit www.ktagage.com
Or call 800-582-4243


Elcometer, Inc.
Durability & Design meet
Performance & Reliability

Elcometer 319 Dewpoint Meter
View the technical data on the Elcometer Dewpoint meter.


Fischer Technology Inc.
MP0R with rotating display screen

Automatic rotating display screen just like your smart phone. Click for Video
Call 800-243-8417


U.S. Zinc
Historic Reliability. Innovative Performance.

We offer custom grades and packaging of zinc dust, oxide, metal and fines, U.S. Zinc provides direct shipping to locations worldwide. U.S. Zinc – Helping the world work™


Chicago Corrosion Group
Vendor-neutral corrosion consulting

What you don’t know about painting is costing you a fortune. Call today to see how CCG’s vendor-neutral, owner’s advocacy saves our clients millions.


Termarust Technologies
Termarust (HR CSA) Chemically Stops
Active Corrosion

Arch truss treated with Termarust's (HR CSA) in 2003. This steel arch bridge is rust free on all surfaces including the crevice corroded joints and connections.


Sherwin-Williams
Sherwin-Williams Protective & Marine Coatings

With 4,000 distribution points and 3,700+ years of experience, Sherwin-Williams delivers the products, support and expertise you need, right where you need it.


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.


HoldTight Solutions Inc.
NO FLASH RUST -
NO CONTAMINANTS

Our HoldTight®102 salt remover & flash rush inhibitor prevents flash rust by removing surface contaminants.
Contact us for your nearest distributor. (800) 319.8802 sales@holdtight.com

 
 
 
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 PaintSquare.com   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us
 

© Copyright 2000-2015, 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 webmaster@paintsquare.com