Menu
Search
Filters
Close
Menu

08393 In-situ Monitoring of Organic Coatings Under QUV/Prohesion Exposure by Embedded Sensors

Picture for 08393 In-situ Monitoring of Organic Coatings Under QUV/Prohesion Exposure by Embedded Sensors
Available for download
Product Number: 51300-08393-SG
ISBN: 08393 2008 CP
Author: Kerry Allahar, Quan Su, and Gordon Bierwagen
Publication Date: 2008
$0.00
$20.00
$20.00
The protection afforded by organic coatings against corrosion for metallic structures is influenced by the ability of the coating to reduce the transport of water, ions, and oxygen from the environment to the substrate. The majority of protective organic coatings are two-layered with the topcoat as the barrier against the environment and the basecoat/primer providing adhesion between the topcoat and the substrate. Primers can also provide additional protection through the use of galvanic (zinc rich primers) or passivating (chromate primers) inhibitors. A standard testing method for coating systems is the QUV/Prohesion test. This test is a modification of the salt spray test and simulates weathering conditions. It involves alternating weekly between Prohesion and QUV exposures. The former includes a fog step of 1 hour salt spray at 25 oC and a dry step of 1 hour hot air at 35 oC. The latter involves 4 hours of UV light at 60 oC and 4 hours of condensation at 50 oC.
The protection afforded by organic coatings against corrosion for metallic structures is influenced by the ability of the coating to reduce the transport of water, ions, and oxygen from the environment to the substrate. The majority of protective organic coatings are two-layered with the topcoat as the barrier against the environment and the basecoat/primer providing adhesion between the topcoat and the substrate. Primers can also provide additional protection through the use of galvanic (zinc rich primers) or passivating (chromate primers) inhibitors. A standard testing method for coating systems is the QUV/Prohesion test. This test is a modification of the salt spray test and simulates weathering conditions. It involves alternating weekly between Prohesion and QUV exposures. The former includes a fog step of 1 hour salt spray at 25 oC and a dry step of 1 hour hot air at 35 oC. The latter involves 4 hours of UV light at 60 oC and 4 hours of condensation at 50 oC.
Product tags
Also Purchased
Picture for 08382 Rp Measurements: Potentiostatically or galvanostatically?
Available for download

08382 Rp Measurements: Potentiostatically or galvanostatically?

Product Number: 51300-08382-SG
ISBN: 08382 2008 CP
Author: François Huet, Ricardo Nogueira, and Aude Guyader
Publication Date: 2008
$20.00
Picture for 08380 Galvanic Behavior of Aluminized Steel Type 2 with Coating Breaks in Waters of Varying Scaling
Available for download

08380 Galvanic Behavior of Aluminized Steel Type 2 with Coating Breaks in Waters of Varying Scaling Tendencies

Product Number: 51300-08380-SG
ISBN: 08380 2008 CP
Author: Leonardo Caseres and Alberto Sagüé
Publication Date: 2008
$20.00
Picture for 08383 In-Plant Electrochemical Measurements on Austenitic Stainless Steel Equipment Operated at Elev
Available for download

08383 In-Plant Electrochemical Measurements on Austenitic Stainless Steel Equipment Operated at Elevated Temperatures

Product Number: 51300-08383-SG
ISBN: 08383 2008 CP
Author: Sabine Schultze, Susanne Bender, and Joachim Goellner
Publication Date: 2008
$20.00
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