Menu
Search
Filters
Close
Menu

Novel Testing Methodology of TwoCoat and Three-Coat Systems for Steel Bridge Structures

Novel Testing Methodology of TwoCoat and Three-Coat Systems for Steel Bridge Structures
Available for download

Departments of Transportation currently use the conventional three-coat system as the predominant choice for the corrosion protection of steel bridge structures. Eliminating one step in the coating process could potentially save time and cost associated with lane closures and traffic control costs. This research paper evaluates several two-coat systems based on the zinc-rich primer and polysiloxane top coat technology. 

Product Number: 51218-163-SG
Author: Elias Toubia
Publication Date: 2018
Industry: Coatings
$0.00
$20.00
$20.00

Departments of Transportation currently use the conventional three-coat system as the predominant choice for the corrosion protection of steel bridge structures. Eliminating one step in the coating process could potentially save time and cost associated with lane closures and traffic control costs. This research paper evaluates several two-coat systems based on the zinc-rich primer and polysiloxane top coat technology. All samples were conditioned and coated in a state-of-the-art, climate-controlled paint booth, simulating common field environmental conditions (ENCON) (ENCON 1: 25 °C/50% RH, ENCON 2: 10 °C/40%RH, and ENCON 3 :32°C/80% RH). Accelerated weathering tests were performed on 435 coated samples (scribed and un-scribed). Regardless of the ENCON considered, the performance of the two-coat system is very comparable to the three-coat system. This coating technology offers much improved performance with quicker set time and better adhesion to steel structures. Considering its durability and ease of application, this two-coat system can be attractive to other public and private agencies to enhance and extend the service life of steel structures.

Departments of Transportation currently use the conventional three-coat system as the predominant choice for the corrosion protection of steel bridge structures. Eliminating one step in the coating process could potentially save time and cost associated with lane closures and traffic control costs. This research paper evaluates several two-coat systems based on the zinc-rich primer and polysiloxane top coat technology. All samples were conditioned and coated in a state-of-the-art, climate-controlled paint booth, simulating common field environmental conditions (ENCON) (ENCON 1: 25 °C/50% RH, ENCON 2: 10 °C/40%RH, and ENCON 3 :32°C/80% RH). Accelerated weathering tests were performed on 435 coated samples (scribed and un-scribed). Regardless of the ENCON considered, the performance of the two-coat system is very comparable to the three-coat system. This coating technology offers much improved performance with quicker set time and better adhesion to steel structures. Considering its durability and ease of application, this two-coat system can be attractive to other public and private agencies to enhance and extend the service life of steel structures.

Product tags
Also Purchased
Red Means Go, Polysiloxane Technology on the Roosevelt Island Bridge
Available for download

Red Means Go, Polysiloxane Technology on the Roosevelt Island Bridge

Product Number: 41211-632-SG
Author: Chris McMillan
Publication Date: 2011
$20.00

Coating technologies for bridges has not changed much since 1977. Available finish coat technologies were limited to alkyd, acrylic, or urethane-based chemistry. Performance of these chemistries has declined over the years due to cost reduction in paint to meet project pricing requirements. Bridge owners and engineers have had a limited selection of high-performance coatings to protect their assets. This is even more important with high profile structures where the finish coat needs to stand the test of time and limited maintenance funding has forced asset owners to extend time in between cosmetic maintenance
Improving the Performance of Epoxy-Polysiloxane Coatings
Available for download

Improving the Performance of Epoxy-Polysiloxane Coatings

Product Number: 41215-907-SG
Author: Dean Kondos, Vikram Kumar, Kujtim Bizati, Christian Geismann, Martin Wusik
Publication Date: 2015
$20.00

A new patent-pending resin technology incorporated into the epoxy/polysiloxane part A portion of a two-component coating system, using an amino-silane curing agent, has shown significant improvements in flexibility, gloss and color retention. Corrosion resistance and adhesion to non-sandblasted metal substrates have also shown improvements. The new resin technology may be considered for low-VOC and HAPs coating systems. 
National Shipbuilding Research Program (NSRP) Surface Preparation and Coatings (SP&C) Panel 2017 Update
Available for download

National Shipbuilding Research Program (NSRP) Surface Preparation and Coatings (SP&C) Panel 2017 Update

Product Number: 51217-066-SG
Author: Raquel Morales, Antoni Prieto, Pinturas Hempel, Jose Luna
Publication Date: 2017
$20.00

Zinc rich primer coatings, both organic and inorganic, are extensively used in highly corrosive environments and they are part of a high performance coating system in the Protective Coatings Industry. During the 60’s and the 70’s, zinc rich epoxy primers dominated the market. Later, zinc ethyl silicate primers took over mainly due to their higher potential to corrosion protection. Nowadays however, new developments in zinc epoxy primers are setting the two categories of Zinc rich primers on the same level in terms of anticorrosion performance while adding the advantages of Epoxy based primers. 
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support