Menu
Search
Filters
Close
Menu

Past Versus Present - Comparing Laboratory Performance of Vinyl Resin Coatings with Modern Epoxy-Polysiloxane Coating Systems

Past Versus Present - Comparing Laboratory Performance of Vinyl Resin Coatings with Modern Epoxy-Polysiloxane Coating Systems
Available for download

Starting in the 1940’s, solution vinyl resin coatings were used extensively to protect steel structures in fluctuating immersion service from corrosion. However, these systems fell out of favor when more restrictive volatile organic compounds regulations were implemented in the 1990’s. Since then, traditional epoxy systems have become a workhorse in the protective coatings industry. Unfortunately, these materials tend to degrade in sunlight, and experience has revealed their service life to be suboptimal compared to legacy coatings systems such as vinyls

Product Number: 51217-076-SG
Author: David Tordonato, Bobbi Jo Merten, Allen Skaja
Publication Date: 2017
Industries: Coatings and Linings , Coatings
$0.00
$20.00
$20.00

Starting in the 1940’s, solution vinyl resin coatings were used extensively to protect steel structures in fluctuating immersion service from corrosion. However, these systems fell out of favor when more restrictive volatile organic compounds regulations were implemented in the 1990’s. Since then, traditional epoxy systems have become a workhorse in the protective coatings industry. Unfortunately, these materials tend to degrade in sunlight, and experience has revealed their service life to be suboptimal compared to legacy coatings systems such as vinyls. Consequently, the Bureau of Reclamation has engaged in an effort to study vinyl coatings and identify potential replacement materials. Newer polysiloxane materials have been developed as a topcoat to combine the advantages of epoxy primer corrosion protection with enhanced weathering resistance. The current study investigated two vinyl resin paint systems applied per US Army Corps of Engineers specifications. One system contained a zinc-rich vinyl resin primer, and the second system did not. Two commercially available coating systems were also tested side-by-side for comparison: a glass flake pigmented epoxy primer with a polysiloxane topcoat and a solvent-borne epoxy primer with a polysiloxane topcoat. Each system was subjected to a series of accelerated weathering laboratory and durability tests. While the polysiloxane topcoat provided adequate ultraviolet resistance, both vinyl systems allowed for less rust creep and better barrier protection in laboratory testing.

Starting in the 1940’s, solution vinyl resin coatings were used extensively to protect steel structures in fluctuating immersion service from corrosion. However, these systems fell out of favor when more restrictive volatile organic compounds regulations were implemented in the 1990’s. Since then, traditional epoxy systems have become a workhorse in the protective coatings industry. Unfortunately, these materials tend to degrade in sunlight, and experience has revealed their service life to be suboptimal compared to legacy coatings systems such as vinyls. Consequently, the Bureau of Reclamation has engaged in an effort to study vinyl coatings and identify potential replacement materials. Newer polysiloxane materials have been developed as a topcoat to combine the advantages of epoxy primer corrosion protection with enhanced weathering resistance. The current study investigated two vinyl resin paint systems applied per US Army Corps of Engineers specifications. One system contained a zinc-rich vinyl resin primer, and the second system did not. Two commercially available coating systems were also tested side-by-side for comparison: a glass flake pigmented epoxy primer with a polysiloxane topcoat and a solvent-borne epoxy primer with a polysiloxane topcoat. Each system was subjected to a series of accelerated weathering laboratory and durability tests. While the polysiloxane topcoat provided adequate ultraviolet resistance, both vinyl systems allowed for less rust creep and better barrier protection in laboratory testing.

Product tags
Also Purchased
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. 
Polysiloxane Coatings for Steel Bridges
Available for download

Polysiloxane Coatings for Steel Bridges

Product Number: 41211-633-SG
Author: Chris McMillan
Publication Date: 2011
$20.00

Bridge coatings have evolved significantly over the years, which has led to wide array of coating types for the bridge coatings community to choose from. This paper will briefly discuss the evolution of bridge coatings through time and will also discuss the most current systems deployed in the coating of structural steel bridges. The primary focus of this paper will be centered on one of the newer technologies available, polysiloxane.
Picture for Coatings + Proceedings 2021-ALL Papers

(Insulation & Corrosion) Field Application of Third Generation Polysiloxane Coating Systems

Product Number: 18-COAT_DEC21
Author: Peter Bock / James Reynolds
Publication Date: 2021
$20.00

Third Generation Polysiloxane (TGPS) ambient curing CUI mitigation coatings have been used in the petrochemical industry for over five years since the “third generation” concept was introduced at NACE Corrosion 2017. These coating technologies have demonstrated positive results in both shop and field application for asset management in elevated temperature, cryogenic and cyclic applications across -196 to 650o C/ -321 to 1200o F operational temperatures. TGPS coatings have also demonstrated effective use of a two-step (primer-insulation) CUI mitigation coating approach operating up to 400o C/750o F, when compared to the traditional (CUI coating-fibrous insulation-cladding) systems.
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