LED Silicone Package AS-2535

Performance characteristics 性能特点

AS-2535 is the development of our two-component heat curing silicone optical material, can effectively absorb the stress caused by the internal thermal cycle, protect the chip and the bonding wires.

Scope of application 适用范围

All kinds of applications that require high flux SMD 5050/3528/3014 and COB packaging and other products. LED, various solar cell encapsulation. Products high transmittance, anti-curing effect, light is small, the product of technical indicators 300 degrees seven days strengthened experiment did not change, no cracks, no hardening, a wide range.

technical parameter 主要技术参数

1, features:

● high transparency, high refractive index, high hardness, high purity

● Excellent heat resistance and dielectric properties

● cured by heat, various substrates with good adhesion

● no by-products

2, before curing physical properties

PartA Part B

Appearance (color) Transparent Transparent

Viscosity Pa•s 11.0 0.5

Density g / cm³ 1.223 1.196

The mixing ratio (weight ratio) 1:1

Mixing Viscosity Pa•s 4.5

After 4 hours, Pa•s 4.5

After 24 hours, Pa•s 5.0

Operating time 12 hours

(Non-standard value)

3, the standard hardening condition

Curing conditions 100 ℃ 2h + 150 ℃ 4h

4, the physical properties after curing

Shore Hardness Shore D 55

Refractive index 1.53

Transmittance% 98%

(Non-standard value)

6. Use

①A, B mass ratio of 1: 1 mixing evenly.

② vacuum degassing after dispensing to a desired portion of the heating cured, if the substrate contains water vapor, bubbles may occur upon curing, thus curing before heating and other operations to remove water before dispensing.

③ Curing conditions 100 ℃ 2h + 150 ℃ 4h.

④ cured if discovered after the bubble, please try curing conditions 60 ℃ 30min + 100 ℃ 2h + 150 ℃ 4h.

7. HANDLING

① Please keep away from fire, direct sunlight, and keep ventilation cold dark sealed and stored.

② using the front substrate surface should be clean and dry. Rough surfaces easier adhesion values.

③ acids, alkalis and certain organometallic compounds adversely affect the properties and storage stability of the material after curing, and may cause problems to generate hydrogen gas. When mixing additives or pigments, etc., should advance experiments confirm that the impact of its additive produced before use

④ use thermostat heat curing, use of replacement-type hot air circulation thermostat, and strengthen internal note imitation Air explosion.

⑤ non-standard values. In order to improve product performance, operability, etc., the information content may be changed.