Vinyl Silicone Oil 350cst CAS 68083-19-2 Medium Viscosity Base for LED Encapsulant Gel
350cst Vinyl Silicone Oil (CAS 68083-19-2) is high-purity linear divinyl-terminated polydimethylsiloxane. It serves as core base polymer for LED transparent encapsulant gel. With moderate viscosity and evenly distributed terminal vinyl groups, it performs hydrosilylation crosslinking reaction with methyl hydrogen silicone oil. The cured silicone gel boasts high light transmission, superior thermal stability and excellent anti-yellowing property, meeting long-term working requirements of LED ligh
Product Overview
350cst Vinyl Silicone Oil (CAS 68083-19-2) is linear divinyl terminated polydimethylsiloxane. Strictly purified to reduce ionic impurities, this medium viscosity vinyl silicone fluid is customized base material for LED encapsulant gel. Terminal vinyl groups enable crosslinking with PMHS under platinum catalyst to form transparent soft silicone gel. Balanced viscosity brings good operability during dispensing and packaging processes, widely adopted in high-transparency LED packaging formulations.
Key Features
- High purity, low ionic impurities, excellent anti-yellowing performance
- Medium viscosity, good fluidity for automatic dispensing operation
- Stable vinyl content, controllable curing speed with crosslinker
- Cured gel possesses high light transmittance and outstanding heat resistance
- Excellent compatibility with matching hydrogen silicone oil and functional additives
Main Applications
- Base polymer for transparent LED encapsulant silicone gel
- Raw material for lighting device packaging silicone
- High transparency addition cure silicone gel formulation
- Functional polymer for optical electronic component encapsulation
Usage Guidance
Mix uniformly with matched methyl hydrogen silicone oil crosslinker, platinum catalyst and optional additives before packaging. Adjust the ratio to control gel hardness and curing schedule. Isolate from catalyst poisons such as amines, tin compounds and heavy metals to avoid curing failure.
Storage & Package
Seal container tightly. Store in cool, dry and ventilated warehouse, avoid direct sunlight, high temperature and ultraviolet radiation. Standard package: 25kg plastic drum, 200kg iron drum. Shelf life: 12 months under proper storage.
Service Support
Testing samples available for packaging formula verification. Stable large-volume supply and professional formulation technical support. Welcome to inquire TDS, COA and competitive factory price.
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