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Optical Silicone gel Encapsulating Gels Optically Clear Silicone Encapsulants
SI6200 Optical Silicone gel Encapsulating Gels Optically Clear Silicone Encapsulants
Product features and applications
SI 6200 is a high purity two-component thermoset silicone material. It is mainly designed for manufacturing optical device modules, and can be used for injection molding optical lenses and optical waveguide coupling to reduce scattering loss, resist the influence of environmental pollution, moisture, shock, vibration, etc., and can maintain its optical properties, mechanical properties and electrical properties for a long time under a wide range of temperature, humidity and harsh environmental conditions.
l High transparency
l Excellent heat resistance
l Non-yellowing
l Self-adhesive relay
l Extremely accurate molding effect
l Long-term protection against UVA and UVB rays
Typical properties of materials
Composition | 6200 A | 6200 B |
Appearance | Colorless transparent fluid | Colorless clear fluid |
Viscosity, mPa ·s(25℃) | 4,000-6,000 | 1,500-2,500 |
Specific gravity, g/cm3(25℃) | 0.99 | 0.99 |
Mixing ratio, (25℃) | A:B=100:100(weight ratio) | |
Operating time after mixing, 100g, (25℃) | 6 hrs (viscosity up to 10,000 mPa.s) | |
Curing conditions, 20g | 30 mins@ 80℃ 10 mins@ 120℃ If adhesion is required, the curing condition is 30 mins@ 120℃ . | |
Curing parameter: 30 mins@ 120℃
Hardness, Type 00 | 35 | |
Refractive index,25℃ | 1.41 | |
Light transmittance,%, 450nm@ 1mm | > 90 | |
Volume resistivity, ohm.cm | 2*1015 | |
Dielectric constant, 1MHz | 2.9 | |
Dielectric loss, 1MHz | 0.009 | |
Ion content, ppm | Na+ | 0.2 |
K+ | 0.1 | |
Cl+ | 0.9 | |
The above technical information is for reference only, please fully carry out the necessary tests before use.
Precautions
l The substrate surface should be clean and dry. Heat can be applied to remove moisture from the substrate surface; The substrate surface can
be cleaned with naphtha, methyl ethyl ketoxime (MEK), or another suitable solvent. Solvents that dissolve or corrode the substrate should not be
used, and solvents that have residue should not be used.
l Keep accurate weighing into a clean glass container and mix well and evenly. When mixing with high-speed mixing equipment, the heat generated by high-speed mixing is likely to increase the temperature of the glue, thereby shortening the use time.
l Remove bubbles under a vacuum of 10mmHg. Generally remove the bubbles before dispensing the packaging material.
l In most cases, polysiloxane is suitable for working for a long time at -45 ° C to 200 ° C, and can withstand 350 ° C for a short time. In specific use, it is best to test according to actual requirements.
l Before the material is not cured, it can not contact organic matter containing N\P\S, can not contact ionic compounds such As Sn\Pb\Hg\Bi\As, can not contact active compounds containing acetylene \ vinyl, can not contact peroxide, can not contact water vapor and alcohol compounds. When these substances reach a certain concentration, they will hinder the curing of the material, which is manifested in three phenomena: it has been in a flowing state and is not cured at all, and there is a thin layer on the surface of the base material in a fluid or RAS state, and there is a smile of bubbles on the contact surface of the base material. Should be fully tested before use.
l When heating and curing, a replaceable hot air oven should be used to prevent the accumulation of trace hydrogen generated during the curing process and the risk of explosion.
l Heat curing can have a certain adhesive force on conventional plastics such as TPU\PET\ABS.
Packaging specifications
SI 6200 optical grade Potting adhesive order code:
A: 2KSI5502; B: 2KSI5503
l Component A: 1000g/ bottle; Component B: 1000g/ bottle
l Component A: 5000g/ pot; Component B: 5000g/ pot
Storage and transportation
l Shelf life: 12 months at 35℃
l Store below 35 ° C, away from direct sunlight and in a ventilated place.
l Unused products should be resealed and stored. It is recommended to pour in dry and clean nitrogen before sealing and storing.
l This product is non-dangerous goods and can be produced, transported and used according to conventional chemicals.
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