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

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

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. 

Product Number: 51217-066-SG
Author: Raquel Morales, Antoni Prieto, Pinturas Hempel, Jose Luna
Publication Date: 2017
Industries: Corrosion Monitoring and Control , Coatings
$0.00
$20.00
$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. Some of these advantages of zinc epoxies over to zinc silicates are the less demanding curing conditions (epoxies will cure at low humidity), the easier overcoating and the less demanding preparation of the substrate prior to application. In addition, Zinc epoxies are typically formulated with high loads of zinc dust, and show better mechanic behaviour, meaning that over thickness is less problematic during application, avoiding the common failure by mud cracking of zinc silicates that can fail by mud cracking. 

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. Some of these advantages of zinc epoxies over to zinc silicates are the less demanding curing conditions (epoxies will cure at low humidity), the easier overcoating and the less demanding preparation of the substrate prior to application. In addition, Zinc epoxies are typically formulated with high loads of zinc dust, and show better mechanic behaviour, meaning that over thickness is less problematic during application, avoiding the common failure by mud cracking of zinc silicates that can fail by mud cracking. 

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National Shipbuilding Research Program (NSRP) Surface Preparation and Coatings (SP&C) Panel 2016 Update
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National Shipbuilding Research Program (NSRP) Surface Preparation and Coatings (SP&C) Panel 2016 Update

Product Number: 41216-999-SG
Author: Arcino Quiero, Jr.
Publication Date: 2016
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The paper is an overview of the National Shipbuilding Research Program (NSRP) Surface Preparation and Coating Panel’s (SP&C) mission to reduce the cost of construction, maintenance, and repair of US Navy ships. The Panel’s “Specs to Decks” approach; research, evaluate, develop, and sustain current and emerging technologies that will reduce cost and maintain or enhance quality, serves as a rudder that guides the Panel’s performance. This review will provide a summary of the Panel and a look at some of its implemented, current, and proposed projects. 
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New Reactive Diluent to Reduce the VOC Content of Polyurethane Acrylic Coatings

Product Number: 51217-050-SG
Author: Christopher Letko, John Argyropoulos, Amber Stephenson
Publication Date: 2017
$20.00

High-solids, two-component acrylic polyurethane coating formulations were prepared using a new low-viscosity, reactive diluent that incorporates directly into the final polymer network. The resulting acrylic coatings were found to increase the solids content of formulations without compromising mechanical performance. Acrylic polyurethane coating samples containing the diluent were evaluated for weatherability performance via QUV and environmental chamber studies. 
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Modeling and Projecting the Onset and Subsequent Failure Rate of Corroding Bridge Post-Tension Tendons

Product Number: 51317--8828-SG
ISBN: 8828 2017 CP
Author: William Hartt
Publication Date: 2017
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Reviews a recently proposed predictive model that projects the onset and subsequent rate of wire and strand fractures and tendon failures as a function of time. Includes first fracture onset results for wires and strands, failure onset for tendons, failure rates and testing of simulated tendons.
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