Silicone resins
ESI-5000(A)/（B）is a high refractive index silicone encapsulant, composed of ESI-5000(A) as basis and ESI-5000（B）as curing agent.ESI-5000(A) and ESI-5000（B）are both composed of silicone resin. ESI-5000 (A) / (B) is characterized by cured product with good transparency, high refractive index, excellent mechanical strength, electrical properties, no color change, suitable for white light, outdoor display and high power LED encapsulation.
Features
| ESI-5000(A) | ESI-5000（B） |
Appearance | colorless viscous liquid | colorless viscous liquid |
Viscosity | 1100-1400 | 650-850 |
Mixing ratio | 100:100 | |
Mixed viscosity | 800-1200mpa.s | |
Mixture refractive index | ≥1.52 | |
Hardness | 40 (shore D) | |
Baking curing conditions | 120℃/1hr+150℃/2hr | |
Mixture available time | ＞4hrs | |
How to use
1. Please ensure that it is no oil, impurities on the surface of encapsulated or bonded component; it is better to clean the component surface by organic solvents and operate after volatilize all the solvents.
2. Once mix ESI-5000(A) and ESI-5000（B）, they should be used in available time, avoiding the viscosity increased too high.
3. Place the required amount of ESI-5000(A) and ESI-5000(B) in a clean container, and mix gently to ensure homogeneity, degass in vacuum (Intermittently pumping and venting) before processing.
4. Bake and cure in conditions of 120℃ for 1hour and 150℃ for 2 hour, obtain the transparent resin that has good adhesion with substrates.
Notes
1. A and B parts should be mixed to ensure homogeneity, degassed before processing.
2. Temperature has a significant impact on the operation and curing, it is allow shortening operation time as temperature increased.
3. ESI-5000 (A)/(B) should not be mixed with the RTV silicone rubber, and avoid mixing with compounds containing S, P, N, otherwise ESI-5000 (A) / (B) can not be cured.