Why is Led Encapsulation Materials Better?

Epoxy Resin and Polyurethane Compounds for Superior LED Encapsulation

Epic Resins has been formulating leading-edge LED encapsulation technologies for decades. Our epoxy and polyurethane specialists create high-quality LED encapsulants that last as long as the LED light itself. For cost-effective, reliable LED encapsulation compounds designed for a wide range of industrial and commercial applications, Epic Resins is your answer.

If you are looking for more details, kindly visit HumenChem.

Epic S is a series of two component urethane adhesives. This series features a convenient 1:1 volumetric mix ratio with a light paste consistency for easy workability. S has been formulated to provide adhesion to a variety of substrates including plastic and metal surfaces. For example, S can be used in battery bonding, connector potting and as an LED lens adhesive. This series is available in a wide variety of colors, viscosities and gel times.

Viscosity: 65,000 - 70,000 cps @ 25°C, 20 RPM Hardness: 87 – 91 (1 hour @ 135°C) Shore D Application: End-Cap Adhesives

Epic S series is a two-component polyurethane potting compound designed for use in high-temperature applications. Epic S is UL 94 V-0 recognized in a thin cross-section without the use of halogen flame retardants and offers a 140°C RTI recognized by UL. The Epic S works extremely well for LED drivers that must meet the requirements of UL safety standards for LED equipment in lighting products, damp location drivers, electrical encapsulation, signs and many other electrical potting applications. For more technical information on Epic S, please view the brochure.

Viscosity: 5,000 – 7,000 cps @ 25°C, 20 RPM Hardness: 75 – 80 Shore A @ 25°C Application: LED Potting & Encapsulating

Epic S series of products are two-component polyurethane encapsulation compounds that are recognized by Underwriter's Laboratories as flame retardant materials. The S series of LED potting urethanes are available in a variety of colors and gel times. The S series of polyurethane LED encapsulants have a low mixed viscosity and good thermal conductivity.

S is a transparent, UL 94 V-0 recognized, polyurethane potting compound. This system is unfilled and is excellent for applications requiring low mixed viscosity for better flow into tight tolerance areas. EPIC S would be an excellent choice for White Goods applications, sensor potting, switches and control modules.

Viscosity: 170 – 230 cps @ 25°C, 20 RPM Hardness: 61 – 65 Shore A @ 25°C Application: LED Potting & Encapsulating

EPIC R/H is a UL recognized vacuum grade modified epoxy system with 180°C RTI. Low mixed viscosity and a long gel time allow this material to achieve 100% penetration of tightly wound coils and tight tolerance spaces in potting applications.

Viscosity: 2,300 – 3,300 cps @ 25°C, 20 RPM Hardness: 85 – 90 Shore D @ 25°C Application: LED Potting & Encapsulating

EPIC S is a thermally conductive epoxy potting and casting compound with a low coefficient of thermal expansion (CTE) and low mixed viscosity, allowing penetration of intricate areas of electronics applications while reducing stress to delicate components during thermal cycling.

Viscosity: 2,500 – 3,500 cps @ 25°C, 20 RPM Hardness: 84 – 87 Shore D @ 25°C Application: LED Potting & Encapsulating

EPIC S is an optically clear aliphatic polyurethane that has exceptional UV resistance. Low mixed viscosity and short gel time allow for easy air release and quick turnover of parts in high volume production settings.

Viscosity: 500 – 700 cps @ 25°C, 20 RPM Hardness: 30 – 35 Shore D @ 25°C Application: LED Potting & Encapsulating

Epic S series of products are two-component polyurethane LED potting compounds that are formulated in a variety of colors and gel times. The S series of products are designed with a meter mix friendly 3:1 ratio by volume, a Shore A Hardness of 80, and good hydrolytic stability for LED encapsulation applications.

Viscosity: 250 – 350 cps @ 25°C, 20 RPM Hardness: 77 – 83 Shore D @ 25°C Application: LED Potting & Encapsulating

EPIC S is a medium durometer polyurethane potting compound used in applications that are subject to regular thermal cycling between -70°C and 135°C with short excursions up to 160°C. EPIC S has low viscosity allowing excellent penetration as well as good adhesion to both plastic and metal case materials.

Viscosity: 2,500 – 3,500 cps @ 25°C, 20 RPM Hardness: 68 – 72 Shore A @ 25°C Application: LED Potting & Encapsulating

EPIC S is a premium, RoHS compliant, polyurethane potting compound that is UL 94 V-0 recognized. Low mixed viscosity allows this material to flow under PCB's and into tight tolerance areas. EPIC S is suited for applications that will see constant thermal cycling due to its very low glass transition temperature and soft durometer.

Viscosity: 3,500 – 4,500 cps @ 25°C, 20 RPM Hardness: 50 – 65 Shore OO @ 25°C Application: LED Potting & Encapsulating

EPIC S is a UL 94 V-0 recognized polyurethane potting compound with excellent thermal and electrical properties. EPIC S is outstanding for potting encapsulating sensitive electronics exposed to outdoor environments. EPIC S is designed for use in equipment conforming to UL , the standard for LED equipment for use in lighting products. This polyurethane has undergone extensive UL testing and has achieved a 150°C RTI rating, a rating previously unavailable with flexible polyurethane potting compounds.

For more information, please visit Led Encapsulation Materials.

Viscosity: 3,000 – 4,000 cps @ 25°C, 20 RPM Hardness: 88 – 92 Shore A @ 25°C Application: LED Potting & Encapsulating

EPIC D is a rigid, two-component aliphatic polyurethane designed to be UV stable, optically clear and display minimal color change and high gloss retention after 1,000 hours of accelerated weather testing. EPIC D has been used in applications that operate up to 130°C.

Viscosity: 300 – 600 cps @ 25°C, 20 RPM Hardness: 75 – 80 Shore D @ 25°C

Why Choose Epic for formulation, manufacture & supply?

Epic Resins has decades of experience in epoxy and polyurethane resins. We will work directly with you to recommend or develop formulations with the specific characteristics your product requires. With our advanced testing procedures, formulations and fast turnaround times, you're sure to find what you need with us.

The Light Emitting Diode (LED) is one of the most significant innovations in the field of lighting. Its exceptional energy efficiency, long lifespan, and compact size have led to its widespread use in a variety of applications—from home lighting to advanced industrial and automotive systems. However, like any electronic component, LEDs are sensitive to external factors such as moisture, dust, and fluctuating weather conditions. Encapsulation of LED s is a process designed to protect these delicate components from degradation, ensuring long-lasting and reliable performance.

LED Encapsulation techniques

Silicone coatings and potting

• Description: Silicone is a commonly chosen material for LED encapsulation due to its flexibility, high-temperature resistance, and excellent transparency, which does not affect the quality of the emitted light.
• Advantages: Silicone coatings exhibit high resistance to UV radiation and do not easily age, which is crucial for outdoor applications where LEDs are exposed to sunlight.

Epoxy and polyurethane potting

• Description: One of the most commonly used methods for LED encapsulation is potting with special resins, such as epoxies and polyurethanes. These materials form a hard, damage-resistant coating that protects LEDs from moisture, dust, and chemicals.
• Advantages: Epoxy potting provides strong adhesion to various surfaces, ensuring a durable seal. Polyurethanes, on the other hand, are more flexible, offering better protection against vibrations and impacts.

Hermetic encapsulation

• Description: Encapsulating LEDs in hermetically sealed enclosures is another method of protecting these components. The enclosures can be made of various materials, including glass or metal, providing an excellent barrier against water and dust.
• Advantages: Hermetic encapsulation is particularly effective in industrial and automotive settings where LEDs are exposed to extreme working conditions.

Protective coating sprays

• Description: In some cases, a technique involving the spraying of thin protective coatings directly onto the LEDs is used. This could be a polymer layer that provides protection against dust and moisture while not affecting the LED’s ability to dissipate heat.
• Advantages: Spraying is a quick and efficient encapsulation method, ideal for mass production of LED devices.

Benefits of LED Encapsulation

Enhanced durability

Encapsulation primarily protects LEDs from external factors, significantly extending their lifespan. As a result, LEDs can operate reliably for many years, even in harsh environments.

Resistance to moisture and dust

Protection against moisture and dust is crucial, especially in outdoor applications or humid environments. Encapsulation prevents these harmful elements from penetrating the LED, protecting against corrosion and short circuits.

Stability in extreme conditions

LEDs are often used in environments exposed to extreme temperatures, vibrations, and UV radiation. Encapsulation ensures stable operation under such conditions, which is essential in industrial, automotive, and aerospace applications.

Improved thermal performance

Some encapsulating materials help dissipate heat from the LED, preventing component overheating and thereby increasing efficiency. This is especially important in applications where LEDs operate at high power levels.

Applications of Encapsulated LED

Outdoor lighting

Encapsulated LEDs are ideal for use in streetlights, architectural lighting, and garden lighting, where they are exposed to changing weather conditions.

Automotive industry

LEDs are used in vehicles for interior lighting, headlights, and signaling systems. Encapsulation ensures their reliability and durability in challenging road conditions.

Industrial lighting systems

In factories and warehouses, LEDs must withstand intense working conditions, including vibrations, impacts, and exposure to chemicals. Encapsulation protects the LEDs while ensuring high-quality lighting.

Conclusion

Encapsulation of LEDs is a crucial process that provides protection from external factors, enhances durability, and improves performance. Various encapsulation techniques allow the use of LEDs in a wide range of applications, from outdoor lighting to automotive and advanced industrial systems. Investing in LED encapsulation ensures the long-term, trouble-free operation of these vital components.

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