Celebrate World Corrosion Awareness Day with 20% off eCourses and eBooks with code WCAD2024 at checkout!
A new system for waterborne 2K epoxies has been developed that presents a measurable value proposition. Performance testing results are presented that demonstrate the key features of coatings prepared with the new amine hardener and two different epoxy dispersions. The hardener is ultra-low-VOC and contains no free amines (no need for hazard labeling).
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.
Use this error code for reference:
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.
Anti-corrosion coating systems typically rely on viscous two-component systems with high VOC content. Autocatalytic, moisture-cure polyurethanes (MC PU) offer a unique approach to develop one-component coatings, which are easier to apply compared to 2k systems and usually can be formulated with lower VOC content.
Increasingly demanding environmental regulations for industrial maintenance coatings have put pressure on manufacturers and users of both solvent borne and waterborne coating systems. The lowering of volatile organic compound (VOC) levels to as low as 100g/L is being considered for industrial maintenance coatings in many regions of the country and has already been implemented in the South Coast Air Quality Management District region of California.
Strategies to improve the heat transfer rate and efficiency of a power plant must carefully balance a trinity of factors: the overall capital expense associated with the technology, the ongoing savings during normal plant operations, and the downtime and labor required for installation and implementation. These economic concerns have slowed the adoption of protective and/or functional surface treatments in power plant operations; traditional epoxies used to prevent biofouling and scale deposition can only be applied to brand new equipment, and the coating will limit heat transfer due to its insulating nature and applied thickness.
A new and versatile waterborne solid epoxy resin dispersion with good flexibility and improved shear stability is presented. When this binder is used, high performance metal primers can be formulated without the use of anti-corrosion pigments. This is highly desirable since the toxicological effects of zinc phosphate and other zinc-based salts are causing environmental concerns.
Purpose of this report: • Explain the history of South Coast Air Quality Management District (SCAQMD) Rule 1113 – Architectural Coatings and the process that SCAQMD goes through to lower Volatile Organic Compounds (VOC) in architectural coatings. • Report on progress toward achieving low-VOC products with respect to the coating categories subject to Rule 1113 limits. • Report on progress on Reactivity and Availability assessment of solvents found in architectural coatings. • Report on future activities with regard to architectural and industrial maintenance coatings within the South Coast Air Basin.
PURPOSE OF THIS REPORT: • Explain the history of South Coast Air Quality Management District (SCAQMD) Rule 1113 – Architectural Coatings and the process that SCAQMD goes through to lower Volatile Organic Compounds (VOC) in architectural coatings. • Report on progress toward achieving low-VOC products with respect to the coating categories subject to Rule 1113 limits. • Report on progress on Reactivity and Availability assessment of solvents found in architectural coatings.
The Use of Ultra-High Build, Fast Return to Service Coatings on Concrete Structures to Shorten the Construction Schedule at the Expansion of the Norman, OK Wastewater Treatment Plant.
Solventborne alkyd resins are widely used in industrial coatings because of their excellent gloss, good adhesion and wetting properties as well as excellent compatibility with other resin types. In many regions, however, the consumption of alkyds is diminishing as stringent environmental regulations drive the coatings industry towards lower volatile organic compound (VOC) systems. Waterborne (WB) coating systems have replaced some solventborne (SB) alkyd paints; however, these WB coatings typically do not offer the same performance as their solventborne counterparts.
For many decades, paint strippers have used hazardous solvents such as methylene chloride and N-Methyl-2-pyrrolidone (NMP) to effectively remove paints and coatings. But safety and environmental concerns have introduced an urgent need for environmentally-friendly alternatives. In March 2019, EPA banned the use methylene chloride in all paint removers for consumer use. However, its replacement, NMP, is now also deemed as a substance of very high concern (SVHC) and in jeopardy of being an option for paint stripping by regulatory forces.
The newly developed green paint stripper discussed here is free from methylene chloride and NMP. It achieves an environmentally-friendly profile by utilizing agricultural base stocks and recycled industrial solvents. It meets USDA criteria for biobased paint strippers and graffiti removers, and it complies to the VOC requirements of the California Reduced Emission Regulation for Consumer Products. This low odor and biodegradable paint stripper/graffiti remover effectively removes acrylic, alkyd, and urethane-based coatings, as well as marker ink comparably to petrochemical-based and NMP-containing products. In addition, the product contains corrosion inhibitors to prevent discoloration and flash rust on ferrous metals, aluminium, copper, and brass during and after paint removal.
Metals and their alloys offer high strength and outstanding mechanical properties. When exposed to corrosive conditions metals corrode first creating minor aesthetic problems then with time and further corrosion significant damage and a loss of service life. Corrosion has a demonstrated economic impact on all modern societies. Often multi-layer anticorrosion coatings systems protect the metal from corrosion.
Epoxy solvent-borne coatings are well established for protective coatings due to their outstanding adhesion and corrosion resistance. Since the passage of the Clean Air Act in 1990, coating formulators have developed alternatives to the traditional volatile organic compounds (VOCs) and hazard air pollutants (HAPs) historically used in solvent-borne protective coatings. The two main approaches employed have been high solids coatings and replacement of solvents with water.