Colorless Alicyclic Epoxy Functional Group Reactive Silicone Oligomers Epoxy Silicone Resins. High Transparency: Features refractive index of 1.47-1.5 for superior light transmission in optics. Dual Curing Systems: Compatible with both cationic UV-curing (10-30s) and anhydride thermal-curing (3-5h). Excellent Weather Resistance: Provides outstanding durability and electrical insulation for long-term performance. Low Curing Shrinkage: Ensures dimensional stability and high adhesion even on substrates with particulate matter. High Hardness & Low Loss: SF-404E variant yields high cross-linking density suitable for wear-resistant insulation. Enhanced Flexibility: SF-204E variant offers low viscosity and high molecular flexibility for epoxy toughening. Long Shelf Life: Maintains stability for 9-12 months when stored in nitrogen-sealed, dry conditions. Global Shipping Options: Available via sea, air, or train transport from Shanghai port.