Optical products come in many forms—from soft nose pads and ear tips that conform to the human body, to rigid optical lenses and automotive lighting components that require strong structural support. The hardness requirements for these applications vary dramatically, yet traditional materials are often limited to a single hardness grade, complicating material selection. A new optical liquid silicone rubber now offers a full hardness range from 30 to 80 Shore A, with each grade maintaining consistent, high-quality optical performance. It serves as a "one-stop material choice" for diverse optical product manufacturing.

Its hardness coverage meets the needs of nearly all optical applications:

• 30 Shore A (Soft grade): Flexible, elastic, and gently tactile—ideal for eyeglass nose pads, silicone ear tips, and transparent components for Bluetooth earbuds. It conforms comfortably to human skin without foreign body sensation, even after prolonged use.

• 40–60 Shore A (Medium grade): Balances flexibility and dimensional stability—perfect for light guides and small optical lenses, reliably delivering light transmission and focusing performance.

• 70–80 Shore A (Hard grade): Tough and durable, with a tensile strength of up to 8.0 MPa and tear strength of 12 kN/m, capable of withstanding daily impacts and abrasion. Ideal for precision rigid optical components in automotive lighting and high-definition displays.

Importantly, regardless of hardness, all grades maintain consistent optical core performance: a high transmittance of 92% and a uniform refractive index of 1.41. There's no need to switch materials when producing components of different hardness levels, greatly streamlining material selection and boosting production efficiency. The density of each grade transitions smoothly from 1.00 to 1.05 g/cm³, ensuring uniform texture and stable product quality after molding.

From personal care items like nose pads and ear tips, to consumer electronics such as transparent Bluetooth headset components, and industrial applications including automotive lighting and high-definition display optics—this optical silicone, with its full hardness coverage, meets the diverse manufacturing needs of multiple product categories while making material selection simpler and more efficient.