MOSCOW (MRC) -- Brand owners can now select Eastman Tritan copolyester and Eastar copolyester from Eastman Chemical Company for carbon filtration and reverse osmosis systems, reported the company on its site.
Brands that market point-of-use (POU) and point-of-entry (POE) water filtration systems and components know that the ability to clearly see the filter at work can result in more frequent filter media replacement - and greater sales.
Tritan and Eastar meet the requirements of the National Sanitation Foundation (NSF) for water filtration units and deliver the benefits of transparent filter housings with excellent durability, improved chemical resistance and toughness. Unlike polycarbonate (PC), both materials are made without bisphenol A (BPA), a big advantage for brand owners looking to answer consumers’ needs for BPA-free products.
Growing consumer concerns about water quality and lack of confidence in municipality processes have led to a growing market for POE and POU water filtration products.
Opaque products are the most common material in the water filtration housing market. Clear or transparent housings make up less than 10 percent of the market because most clear materials fall short of NSF performance requirements for hydrostatic and burst pressure, and pressure fatigue. Consumers prefer a transparent housing that allows them to see the filter working and indicates filter replacement timing.
Eastman Tritan copolyester and Eastar copolyester meet NSF performance standards, a critical part of fitness for use. Tritan and Eastar provide a clear view of the filtration media, without the breakage and durability issues associated with some clear plastics, including styrene acrylonitrile copolymers (SAN). The glasslike clarity of Tritan and Eastar also allow for greater tinting flexibility, compared with the noticeable blue cast of SAN.
The toughness of Eastman Tritan copolyester and Eastar copolyester helps ensure longer filter housing life and can reduce issues related to breakage, cracking and product failure. Certain housings are designed with replaceable media, requiring the housing to be sanitized with each filter change, which is ideal for the dishwasher durability of Tritan.
In addition, when put up against two competitive materials - talc-filled polypropylene and SAN - in a rigorous drop-impact test, Eastman Tritan copolyester outperformed.
As MRC wrote previously, earlier this year, Eastman Chemical Company, a global specialty chemical company, enhanced its medical packaging portfolio with Eastalite copolyester, the company’s first opaque offering, which is styrene-free and can be a sustainable alternative to high-impact polystyrene (HIPS).
Eastman (headquartered in Kingsport, Tennessee, USA) is a global specialty chemical company that produces a broad range of products found in items people use every day. With a portfolio of specialty businesses, Eastman works with customers to deliver innovative products and solutions while maintaining a commitment to safety and sustainability. Its market-driven approaches take advantage of world-class technology platforms and leading positions in attractive end-markets such as transportation, building and construction, and consumables.
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