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


Get on-line education from the Pro Video Learning Series.

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

Elcometer, Inc.
Durability & Design meet
Performance & Reliability

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

HoldTight Solutions Inc.

Our HoldTight®102 salt remover & flash rust preventer prevents flash
rust by removing surface contaminants. It has no equal; only wannabees.
Contact us for your
nearest distributor.
(800) 319.8802

KTA-Tator, Inc. - Corporate Office
KTA Analyzes
Coating Failures

• Field Diagnosis
• Lab Diagnosis
• Determination of Cause
• Recommendations
Call 1-800-245-6379

SSPC: The Society for Protective Coatings
SSPC 2016 Register Now!

SSPC2016 is earlier this year, don't forget to book your plane tickets and hotel. See you soon. For more information visit

DeFelsko Corporation
PosiTest Automatic Adhesion Tester

Electronically controlled hydraulic pump applies smooth and continuous pull-off pressure at user selectable rates. No twisting, pumping or cranking.

Termarust Technologies
Termarust (HR CSA) Chemically Stops
Active Corrosion

Truss bridge treated in 2000 with Termarust's (HR CSA) field-proven rust mitigation system chemically stopped corrosion, crevice corrosion & pack rust.

Fischer Technology Inc.
MP0R with rotating display screen

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

Apex Waterjetting Technologies
Waterjetting – Custom Manufacturing and Wholesale

• Waterjet Accessories
• Saphire Nozzles
• UHP Hoses
• Replacement Parts
• Wholesale Direct
• 24 Years of Experience
• Buy and Save!!!

Avalotis Corporation
Choose experience. Choose quality. Choose safety.

Avalotis Corporation has been meeting and exceeding clients’ specifications and expectations for almost 50 years. The first name in painting and protective coatings: Avalotis.

NLB Corporation
Water Jets in Action

Video demo shows how
easily Vortex™ removes
coatings and more. Lawn-
mower-style water jet unit strips floors, ship decks, etc. quickly and keeps debris contained.

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 2000-2015, 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