Important: AMPP System Update February 27 - March 11 – Limited Access to AMPP Digital Services. Act Now to Avoid Disruptions! - Learn More
There seems to be a trend for bridge owners to believe that applying all three coats of paint in the shop is more cost effective and will provide for a better coatings job on new steel. This paper will discuss the differences between shop coating and field painting and the pros and cons of shop applied coatings versus field applied coatings on new steel.
There seems to be a trend for bridge owners to believe that applying all three coats of paint in the shop is more cost effective and will provide for a better coatings job on new steel. This paper will discuss the differences between shop coating and field painting and the pros and cons of shop applied coatings versus field applied coatings on new steel. This paper will also discuss various cost differences between shop and field painting as it pertains to new steel, and we will cover two case histories of Maryland State Highway Administration jobs which had all three coats of paint applied in the shop.
Common methods of maintenance painting have either involved complete removal of existing paint (e.g., SSPC-SP 10, Near White Blast Cleaning) or highly localized preparation of corroding areas using power or hand tools (e.g., SSPC-SP 2 or SSPC-SP 3). Sometimes projects may be designed to an intermediate level where the intent is to reduce the surface preparation level of effort by allowing “good” coatings to remain. In these cases, abrasive blasting or ultra-high pressure water jetting may be used to prepare the entire surface, but well adhered aged coating is allowed to remain.
We are unable to complete this action. Please try again at a later time.
If this error continues to occur, please contact AMPP Customer Support for assistance.
Error Message:
Please login to use Standards Credits*
* AMPP Members receive Standards Credits in order to redeem eligible Standards and Reports in the Store
You are not a Member.
AMPP Members enjoy many benefits, including Standards Credits which can be used to redeem eligible Standards and Reports in the Store.
You can visit the Membership Page to learn about the benefits of membership.
You have previously purchased this item.
Go to Downloadable Products in your AMPP Store profile to find this item.
You do not have sufficient Standards Credits to claim this item.
Click on 'ADD TO CART' to purchase this item.
Your Standards Credit(s)
1
Remaining Credits
0
Please review your transaction.
Click on 'REDEEM' to use your Standards Credits to claim this item.
You have successfully redeemed:
Go to Downloadable Products in your AMPP Store Profile to find and download this item.
Corrosion on steel bridges has long been recognized as a major concern. Over the years, technology has advanced from lead-based paints used for a century to three-coat systems. Recently, two-coat systems have been developed and are gaining acceptance. Research which is now underway to develop a one-coat system is described in this paper.
While commercial painting is often thought to be less rigorous or less technical than industrial painting, the commercial painting industry has its own set of demands on a coating and is not without its share of coating problems. The authors experience demonstrates that there are commonalities in failures of coatings in commercial painting.