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

 

Download the latest free Blasting Resource Guide eResource Book

Problem Solving Forum

| More

October 18 - October 31, 2010

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?


Selected Answers

From David Grove of Shaw Nuclear Power Services on October 28, 2010:
Your question does not define the stage of your project or the exposure conditions. This response is based on severe exposure. If still in fabrication, order the steel coated with coatings that meet slip critical criteria. Most inorganic zinc-rich coatings meet this requirement. If bolts are not High Strength (HS), then order them either coated or galvanized. If they are HS, which are generally covered with black millscale, then the best method to prep these, after installation, is blast to SSPC- SP 10 since this removes the millscale and preps the difficult to access surfaces such as the threads, gaps, edges of washers, etc. Power tool cleaning is acceptable, but inspections must ensure that all those difficult to prep surfaces are correct for the coatings that will follow. Depending upon installation methods, oils may be present; therefore, SSPC-SP 1 may be required before surface prep. This work is difficult and can be slow. Ensure a fair contract to a qualified contractor and inspection company. SSPC can help with this by their qualification programs.

Please sign in to submit your answer this question    

Tagged categories: Corrosion protection; Structural steel


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

Specialty Products, Inc. (SPI)
Polyurea & Polyurethane Spray Foam Training

SPI is committed to industry leading technical training for polyurea & polyurethane spray foam professionals. Attendees receive hands-on, in-depth training for using and troubleshooting plural-component equipment, spray guns, machine hoses & parts.


Industrial Vacuum Equipment Corp.
Hurricane Vacuums
& Dust Collectors

Vacuum and dust collector hose, filters and related accessories.
IndustrialVacuum.com


SABRE Autonomous Solutions
Safety, Productivity, Quality. Robotic Blasting

Learn how this simple to use, field deployed, automatic robot is eliminating hazards in major confined, cluttered and complex surface preparation projects.


Tarps manufacturing, Inc.
QUALITY MADE IN AMERICA —Available near you!

CLICK to get a behind-the-scenes look at how Tarps Manufacturing makes the highest-quality tarps right here in the USA — available nationwide.


Desco Mfg. Co., Inc.
DUST-FREE SOLUTIONS For Lead Abatement

Tools operate at levels well below OSHA limits for hazardous material removal; meet SP11 specifications when required and low vibration tools increase productivity.


NLB Corporation
NLB Sure Shroud: Greater Protection and Flexibility

NLB’s Sure Shroud’s lighter weight and flexibility reduces operator fatigue and offers unmatched protection against high pressure hose ruptures. 10k to 40k psi rated.


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.


PreTox Products - NexTec, Inc.
GOT LEAD? Specify Pretox System products

The ONLY Lead Stabilizer Compatible with All Paint Removal Methods. Works with all Blast Media: Grits | Recyclable Abrasives | CO2 | Water | Power Tools | Etc. Call Dave Steffen at 800.338.8296.


Abrasives Inc.
Check our Prices for Blast Abrasives

Faced with higher abrasive costs? We invite you to call & check our rates on Black Magic® coal slag and other quality blast materials. Abrasives Inc. 800-584-7524


Blastox/The TDJ Group, Inc.
Blastox - One Step
Lead Abatement

Don't waste money on added labor steps with other methods. Don't mix, meter or apply at the job-site. Avoid strict hazardous waste rules.
Let your painters paint

 
 
 
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 2000-2016, 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 webmaster@paintsquare.com