Highly transparent liquid silicone with a transmittance greater than 94%, as a cutting-edge polymer material, is causing a material revolution in many high-end manufacturing fields with its excellent optical properties and physical characteristics. This material is often referred to as optical grade liquid silicone in the industry, and its biggest highlight is breaking the light transmission limit of traditional transparent plastics. Taking common acrylic (PMMA) as an example, its transmittance is usually around 92%, while high transparency liquid silicone can easily reach a transmittance of 94% to 95% or more while maintaining a certain thickness, and even some LED potting adhesives can have a transmittance of up to 96.2%. This almost glass like purity gives it an irreplaceable advantage in optical applications.
From the perspective of materials science, this extremely high transparency is attributed to precise raw material purification processes and optimized platinum catalytic systems. During the preparation process, the impurity content is strictly controlled at the ppm level, thereby achieving extremely low haze. Meanwhile, this type of silicone typically adopts a two-component design, with high fluidity and low viscosity, which can perfectly meet the precision injection molding needs of complex microstructures or ultra-thin light guiding components. What's even more rare is that it can achieve a mirror effect by directly molding in the mold, completely eliminating the secondary polishing process required by traditional optical materials, greatly improving production efficiency and reducing costs.
In addition to outstanding optical performance, highly transparent liquid silicone also combines the excellent physical properties that the silicone family has always had. It has excellent resistance to ultraviolet and blue light, and is not prone to yellowing even when exposed to light for a long time. It can maintain a crystal clear texture for a long time. In extreme temperature environments, it can still maintain stable performance and is usually used for a long time in a wide temperature range of minus 50 ℃ to 250 ℃ without cracking or hardening. In addition, it also has good tensile strength, tear resistance, excellent resilience, and outstanding electrical insulation performance. The solidified colloid can even self heal after being cracked by external forces, demonstrating extremely strong durability.
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IOTA Liquid Silicone Rubber