Posts

, , ,

NEI Introduces Optically Transparent Hardcoat with UV Protection

June 30, 2021

Somerset, New Jersey (USA) – NEI Corporation announced today that it has introduced NANOMYTE® UVP-100, an optically transparent coating that provides simultaneous protection from ultraviolet radiation, as well as from scratching and abrasion. A key attribute of the single layer UVP-100 coating is that it is relatively thin, only about 5 – 10 microns thick. The new coating can be used on a wide variety of polymer materials, particularly those that are susceptible to damage by ultraviolet light from the sun. NANOMYTE® UVP-100 complements NEI’s portfolio of functional coatings, which include easy-to-clean, hydrophobic, anti-fog, anti-ice, and abrasion resistant coatings.

UVP-100’s coating composition has a unique chemistry that’s comprised of highly efficient UV-absorbing materials that are incorporated into a hard coat matrix. The figure below shows the UV-Vis spectrum of UVP-100 on glass, as compared to that of an uncoated glass control. 90% of the UV radiation with wavelength <375 nm is essentially blocked with a film approximately 6 µm thick. The coating remains fully transparent and is highly stable to UV radiation. The coating showed no damage (e.g., cracking and delamination) even after 250 hours of continuous exposure to intense UV radiation (0.9 W/m2) at 60°C in QUV accelerated weathering testing.

UV-Vis Spectrum of UVP-100

UV-Vis spectrum of UVP-100 vs. uncoated glass (control)

x

Uncoated polycarbonate plaque (left) vs. NANOMYTE® UVP-100 coated polycarbonate plaque (right) – after exposure to ultraviolet light for the same time period

The development of NANOMYTE® UVP-100 coating is based on NEI’s patented NANOMYTE® SR-100 scratch resistant coating technology, which is being used in a number of commercial applications. Using standard abrasion tests, such as ASTM D-1044 (500-gram load, CS-10F wheel, 1000 cycles), uncoated polycarbonate will generate a measured delta haze of 30 – 35%. Commercially available hard coatings on polycarbonate lead to a delta haze of 2% to 6%. By comparison, NANOMYTE® SR-100 typically generates < 1% delta haze (ASTM D1044), and UVP-100 exhibits a delta haze value under 2%. Additionally, NEI’s UVP-100 coating has excellent chemical resistance, passing the 2-hour test for 0.1N HCl, 0.1N NaOH and xylene (i.e., no damage can be seen after 2 hours exposure to the above chemicals). The coating also has good solvent resistance – displaying no damage after 200 double rubs of MEK on the coating surface.

Application of UVP-100 is easy, using standard coating processes (such as immersion, flow, or spray coating) that require no specialized equipment. NEI also supplies a primer product – NANOMYTE® SR-Primer – which works well with a range of plastics to promote adhesion.

Additional Information: NANOMYTE® UVP-100 Technical Data Sheet | Safety Data Sheet (Part A) ♦ (Part B) | Request a Quote

Download Press Release (pdf) ↓


About NEI: NEI Corporation is an applications-driven company that utilizes materials science & chemistry to develop and produce Advanced Materials for a broad range of markets. NEI’s line of Protective Coatings provide tailored functionalities, such as hydrophobicity, self-healing, fog resistance, self-cleaning (or easy-to-clean), scratch resistance, anticorrosion, and icephobicity.

NEI is most receptive to new applications brought to it by its customers. A typical interaction begins by applying the coating on the customer’s parts and submitting it to the customer for evaluation. Either parts are coated at NEI’s applications laboratory, or the customer procures a sample quantity of liquid coating for in-house application. The implementation process then moves through pilot scale tests and eventual qualification. NEI’s engineers support the development and qualification efforts of its customers every step of the way, including drawing up technical specifications and engaging with third party coating applicators, if necessary.

For more information, give us a call or email us.

, ,

NEI Coating Product Update

NANOMYTE® TC-4001-UVP Offers Protection Against Damage by UV-C Radiation Used to Disinfect Coronavirus

May 6, 2020

Somerset, NJ (USA) – NEI Corporation announced today that its newly developed NANOMYTE® TC-4001-UVP product has been shown to offer protection against damage from short-wavelength ultraviolet radiation. Ultraviolet radiation in the 100nm – 280nm wavelength range, also referred to as UV-C, is increasingly being considered as a means for disinfecting surfaces that large numbers of people are likely to come in contact with, such as parts of transit systems, theme parks, cinema theaters, public restrooms, airports, and other areas of high traffic. The COVID-19 virus has made frequent cleaning of surfaces a top priority for maintenance managers of high traffic areas. However, UV radiation causes significant damage to painted surfaces by creating free radicals that then cause polymer degradation. The NANOMYTE® coating offers protection for surfaces exposed to UV-C radiation.

TC-4001-UVP Spectroscopic Graph

NANOMYTE® TC-4001-UVP Spectroscopic Measurements

NANOMYTE® TC-4001-UVP shows remarkable ability to block UV-C, as evidenced by spectroscopic measurements shown in the adjacent figure. All radiation below 350nm is blocked completely by a film that is only 1/5 mil (5 microns) thick. The transparent coating is a single component formulation designed to protect metals and other surfaces from degrading, preserving their structural integrity and appearance. The hard, dense, and smooth coating is a composite consisting of organic and inorganic phases. It resists scratching and chipping and adheres strongly to bare, pretreated, or painted metal surfaces. A variety of other surfaces may be coated as well, such as plastics and composites. The coating is easily applied by immersion, spraying or brushing, in thicknesses ranging from microns to mils, and is available in glossy or matte finishes.

NEI’s extensive line of functional coatings, which includes NANOMYTE® TC-4001-UVP, is already in commercial use in many industrial, aerospace, consumer goods, wireless communication, and other sectors.

1000 Hours Constant UV Exposure: Polycarbonate in QUV Chamber with UVA 340 Lamps @ 0.9 W/m2

The company’s approach has been to be open and receptive to new applications brought to it by its customers. A typical interaction begins by applying the coating on the customer’s parts for evaluation. Parts are either coated at NEI’s applications laboratory or the customer procures a sample quantity of liquid coating for in-house application. The implementation process then moves through pilot scale tests and eventual qualification. NEI’s engineers support the development and qualification efforts of its customers every step of the way, including drawing up technical specifications and engaging with third party coating applicators, if necessary.

Additional Information: NANOMYTE® TC-4001-UVP Technical Data Sheet (TDS) | Safety Data Sheet (SDS)

View / Download Press Release (pdf) ↓


About NEI Corporation:

NEI is an application-driven company that utilizes materials science & chemistry to develop and produce Advanced Materials. NEI offers an array of Functional Coatings for metal and polymer surfaces. The coatings have tailored functionalities, such as Easy-to-Clean, Anti-Ice, Self-Healing, Corrosion resistant, Anti-Fog, and Abrasion Resistant.

For more information, give us a call or email us.