High-Refractive Index Platinum Catalyst PT-5000PH – LED Potting & RTV Sealant Grade
Product Overview for Platinum Catalyst
PT-5000PH is a high-refractive-index platinum catalyst engineered for LED potting and optical sealing applications. It enables formulations with RI up to 1.51, enhancing light extraction and efficiency in LED modules.
Product Features for Platinum Catalyst
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Enables RI up to 1.51 in cured silicone
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Excellent optical clarity and light transmission
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Low ionic content for improved LED reliability
Product Parameters for Platinum Catalyst
Platinum content: 5000–7000 ppm
Refractive index (cured): Adjustable 1.41–1.51
Volatile content: < 0.5%
Applications for Platinum Catalyst
LED encapsulation and potting compounds
High-RI RTV sealants for optics
Optical adhesives for lenses and displays
Photovoltaic module sealing
Operating Guidelines for Platinum Catalyst
Typical dosage: 0.05–0.3% in LSR base
Mix with vinyl silicone polymer before adding crosslinker
Injection molding or compression molding at 120–180°C
Precautions for Platinum Catalyst
Avoid moisture contamination during processing
Handle under yellow light if UV-sensitive components present
Packaging & Storage for Platinum Catalyst
100 g, 500 g, 1 kg amber glass bottles
Store under nitrogen blanket for extended stability
FAQ for Platinum Catalyst
Why is high refractive index important for LEDs?
Reduces light loss at interfaces, improving brightness and efficiency.
Can PT-5000PH be used for UV-cure systems?
It is designed for thermal cure; for UV cure, please inquire about specific grades.
What is the typical light transmittance?
92% at 450 nm in 2 mm thickness.
Does it yellow under blue light?
No, it exhibits excellent blue light stability.
Is it suitable for COB LED packaging?
Yes, widely used in chip-on-board LED potting.
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