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2K Polyurethane Innovation from Dow Decouples Pot Life from Cure Time

Published on 2015-04-21. Author : SpecialChem

PARALOID™ Edge Technology can offer short cure time and long pot life, eliminates isocyanate

PHILADELPHIA -- Offering a cure speed decoupled from pot life, a new solvent-borne technology platform from Dow Coating Materials, a business unit of The Dow Chemical Company, re-writes the conventional rules of two-component (2K) urethane coatings. PARALOID™ Edge Isocyanate-Free1 Technology extends pot life while maintaining quick cure. The ambient crosslinking technology will be unveiled this week at the 2015 European Coatings Show in Nuremberg, Germany.

“Choosing between longer pot life and faster cure time is an ongoing challenge of 2K polyurethane coating formulations that results in a trade-off on one or both of these key properties,” said Chuck Martz, global business director for industrial coatings, Dow Coating Materials. “With PARALOID™ Edge Technology, formulators and applicators don’t have to sacrifice cure speed to extend pot life, or vice versa.”

The fast curing capability of PARALOID™ Edge Technology can allow for faster return to service while longer pot life can provide once per shift make-up which can result in less material waste. The new solvent-borne offering also features application flexibility and is isocyanate and formaldehyde2 free.

“Current isocyanate-free offerings exist, but they require thermal cure. PARALOID™ Edge Technology not only offers ambient curing, but also can provide convenience, cost efficiency and an improved environmental, health and safety profile,” said Martz. “It’s a true innovation and a first in solvent-borne two component urethane technology.”

Representatives from Dow Coating Materials will address advances in isocyanate-free polyurethane coatings Tuesday, April 21 at 10:00 a.m. and Thursday, April 23 at 11:30 a.m. local time during a technical session at the 2015 European Coatings Show.

The cutting edge combination of benefits offered by PARALOID™ Edge Technology make it a distinctive offering in an expanding variety of markets including auto refinishing, agriculture and construction equipment (ACE), maintenance and protective coatings (M&PC) for metal, and industrial wood.

Applied as a primer in auto refinishing, PARALOID™ Edge Technology can offer dry-to-sand time in as few as 40 minutes according to recent research conducted by Dow Coating Materials. The isocyanate- and formaldehyde-free aspect of this product can also provide an environmental, health and safety (EHS) benefit for the body shop.

For ACE applications, PARALOID™ Edge Technology may be used in direct-to-metal (DTM) formulations or over primer in pigmented topcoats. Because it only requires ambient curing, PARALOID™ Edge Technology can allow faster throughput for the original equipment manufacturer (OEM) and longer pot life can reduce the OEM’s material waste.

PARALOID™ Edge Technology may also be used as a clear or pigmented topcoat for steel structures, tanks, rail cars, off-shore oil and gas pipelines, and more. Its weatherability makes this novel urethane technology an ideal choice for maintenance and protective coatings.

Compared to standard 2K polyurethane coatings, when used as clear or pigmented primers and topcoats for interior wood applications like cabinetry and furniture, benefits to the applicator can include shorter dry time, less material waste, and faster property development.

“PARALOID™ Edge Technology marks another milestone in our innovation portfolio and demonstrates our commitment to research, development and advancement in the growing industrial coatings market,” said Martz. “The broad industrial product line from Dow Coating Materials also includes MAINCOTE™ Waterborne Resins, AVANSE™ Acrylic Resins, PRIMAL™ Acrylic Resins ACOUSTICRYL™ Liquid Applied Sound Damping (LASD) Resins, and PARALOID™ Polyol and Thermoplastic Resins.”


1. Manufactured without isocyanate
2. No added formaldehyde or formaldehyde generators


About Dow Coating Materials

Dow Coating Materials is the most innovative coatings raw material supplier in the world; driving fundamental shifts in the coatings industry and moving the market as the expert’s expert in coating solutions. Through its mission of collaboration, inspiration, innovation and growth, the business provides material products, science, technology, and manufacturing solutions to the architectural and industrial coatings industry worldwide. Dow Coating Materials operates 43 manufacturing plants worldwide and 13 dedicated R&D facilities across all major geographic markets where Dow does business.

About Dow

Dow combines the power of science and technology to passionately innovate what is essential to human progress. The Company is driving innovations that extract value from the intersection of chemical, physical and biological sciences to help address many of the world's most challenging problems such as the need for clean water, clean energy generation and conservation, and increasing agricultural productivity. Dow's integrated, market-driven, industry-leading portfolio of specialty chemical, advanced materials, agrosciences and plastics businesses delivers a broad range of technology-based products and solutions to customers in approximately 180 countries and in high-growth sectors such as packaging, electronics, water, coatings and agriculture. In 2014, Dow had annual sales of more than $58 billion and employed approximately 53,000 people worldwide. The Company's more than 6,000 products are manufactured at 201 sites in 35 countries across the globe. References to "Dow" or the "Company" mean The Dow Chemical Company and its consolidated subsidiaries unless otherwise expressly noted.

Source: Dow


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