Electronics Protection - Spring 2015 - (Page 28)

Contamination Optically Clear, Low Viscosity Epoxy Features a Long Open Time at Room Temperature Master Bond EP62-1LPSP delivers an array of strength, electrical and handling properties that are well suited for bonding, sealing, coating and encapsulation applications. With a tensile lap shear strength exceeding 2,000 psi, it bonds well to a variety of substrates including metals, composites, glass and many plastics. This optically clear epoxy has a non-critical four to one mix ratio by weight and features an open time of 12 to 24 hours at ambient temperatures. EP62-1LPSP has a thin mixed viscosity of 150 to 300 cps, which can be further lowered by adding heat. Its low exotherm while curing allows it to be used for large encapsulations. It offers a variety of cure schedules and can be cured at temperatures as low as 60°C to 70°C. Faster cures can be achieved at 125°C. Featuring a glass transition temperature of greater than 125°C, EP62-1LPSP is a thermally stable system that is serviceable over the wide temperature range of -60°F to 400°F. It withstands exposure to chemicals such as water, fuels, oils, solvents, acids and bases. EP62-1LPSP is a reliable electrical insulator and has a volume resistivity over 1014 ohm-cm. This blend of properties allows this product to be used in aerospace, electronic, fiber-optic, optoelectronic and specialty OEM applications. Dow Corning Silicone Encapsulant Offers Electronics Protection for Outdoor LED Lighting Dow Corning has introduced EI-1184 Clear Encapsulant for outdoor LED lighting applications. Featuring high transparency and weatherability, the two-part silicone encapsulant delivers reliable, long-lasting protection of sensitive LED electronics in environments containing moisture, ultraviolet (UV) light, thermal cycling and extreme temperatures for both indoor and outdoor lamp and luminaire applications. The global LED market is rapidly expanding, driven by government initiatives to phase out conventional incandescent lighting to lower energy consumption and minimize environmental impact. Outdoor lighting is the fastest-growing segment within the overall LED market, with an estimated 25 percent compound annual growth rate through 2018, according to market research firm Strategies Unlimited. This growth is spurring demand for innovative materials that deliver robust protection against harsh environmental conditions, while adhering to industry standards and lowering manufacturing costs. As a class of materials, Dow Corning silicones deliver greater flexibility compared to other encapsulant chemistries to counter mechanical strains of thermal cycling. They also deliver higher photothermal stability vs. epoxies and other organic solutions, which supports the industry trend toward brighter, hotter LED lighting designs. EI-1184 Encapsulant further conforms to UL F1, the standard specified by Underwriters Laboratories ensuring that a material meets specific parameters for resistance to UV and moisture exposure typically seen in outdoor applications. Dow Corning's new silicone encapsulant comes as a simple, two-part liquid component kit that requires a comparatively simple 1:1 mix ratio unlike conventional grades that mix 10:1. This not only reduces the potential for error during preparation, it makes 28 Spring 2015 * www.ElectronicsProtectionMagazine.com it easier for manufacturers to control quality, simplify processing and reduce costs for high volume production. Once mixed, the formulation cures to a flexible elastomer, which is well suited for the protection of electrical/electronic applications. Europlasma Releases Nanofics Technology for Corrosion Protection Europlasma has released a nanocoating technology for the electronics industry under the Nanofics brand name. Europlasma's Nanofics technology is used for the coating of filtration products, functional textiles, medical devices and consumer electronics. Nanofics refers to nanoscaled functionalization into the core of complex shaped materials and products. The Nanofics 120 family of coatings is a highly water repellent (water contact angle of 120° according to ASTM D5964) and highly oil repellent (oil repellency level 8 according to ISO 14419) fluoropolymer type of nanocoatings deposited by low pressure plasma technology. These liquid repellent nanocoatings have proven to be the ideal technology to splashproof and corrosion protect wearable and portable electronics. The Nanofics 120 coatings show resistance against water, acid or salt, and can be applied in a unifom way throughout very complex fine scaled structures. The coatings are transparent, flexible and show no influence on the performance of the device. Because these nanocoatings are so thin no masking of specific microdevices or electrical contact points is required, which allows absolute flexibility for integration in the manufacturing process. "The Nanofics 120 would typically be used on a headset to reach water ingress protection IPx4, and salt mist corrosion protection for at least 48 hours. We do not work only with each customer individually to reach the best possible solution for their current device, we also work together with the customer to improve both the design of the device and the coating type to further increase performance for future models," said Europlasma's sales and product manager Peter Martens. DTi Seals and Trim Approved by UL as Recognized Components Device Technologies, Inc. (DTi) has announced that Underwriters Labs (UL) has approved its Seal-Fast Door Seals and Trim-Fast Edge Trim for EPDM gasketing materials to the UL50E standard. Thanks to this Recognized Component designation, any finished product that uses these seals and trim automatically now receives a quality upgrade, creating greater value for their customers. The certification is especially important to companies needing performance materials that comply with NEMA standards to protect critical equipment like Telco switches, data center racks and chassis and routers. In addition, DTi seals and trim are used on truck bodies and enclosures for generators and inverters and other applications in environments ranging from back office to http://www.ElectronicsProtectionMagazine.com

Table of Contents for the Digital Edition of Electronics Protection - Spring 2015

Editor's Choice
Predictive Modeling: The Next Frontier in Data Center Condition Maintenance
Don't Forget the Batteries
Military Aircraft Power
Pumped Two Phase Cooling Solutions for Challenging Thermal Management Applications
Identifying the Ideal Mechanical PCB Hardware for Electronic Systems
Bridging the Technology Gap: The Importance of Cyber and Physical Security within the Data Center
Waterproof Mobile Device Protection without Compromising Acoustic Quality
Enclosures
Thermal
EMI/EMC/RFI
Power
Hardware
Contamination
Industry News

Electronics Protection - Spring 2015