High tensile strength thiol-based optical adhesive Thiol-80L

May 15, 2025 Leave a message

In the fields of optical display, electronic packaging and high-end manufacturing, high tensile strength, light transmittance and weather resistance of adhesive materials have become key requirements. Thiol-80 (High Tensile Strength Thiol-Based Adhesive for Optical Bonding) launched by Shenzhen U-Sunny has become a benchmark product in the field of optical bonding with its unique thiol-ene chemical system and nano-enhancement technology. This article will analyze its core competitiveness from three aspects: technical characteristics, application scenarios and industry trends.

 

1. Core technical advantages of Thiol-80
Thiol-80 is based on the thiol-ene photocuring system. Through the molecular design of the bifunctional thiol monomer, it achieves a tensile strength of ≥15MPa (far exceeding the 8-10MPa of traditional epoxy adhesives), while maintaining a transmittance of up to 92% (wavelength 400-800nm). Its curing speed only takes 5-8 seconds (365nm UV LED light source), energy consumption is 40% lower than that of traditional mercury lamps, and the curing shrinkage rate is <1%, which effectively avoids microcracks or distortion caused by internal stress of optical components.

In addition, Thiol-80Loptimizes thixotropy and leveling properties through nano-gas phase silica (addition amount 0.5%-2.5%) to ensure uniform and bubble-free coating. Its low yellowing characteristics (ΔE<1.5 after 1000 hours of UV aging test) and temperature resistance range (-40℃ to 120℃) make it suitable for long-term stable bonding in extreme environments.

 

2. Multi-field application scenarios
Optical display industry:

Used in the full bonding process of OLED screens and AR/VR lenses, its high light transmittance and low refractive index (1.48) can reduce interface reflection and improve display contrast.

In vehicle-mounted display screens, high temperature resistance and shock resistance pass the ISO 16750 vibration test standard to ensure long-term reliability.

Electronic packaging:

As a packaging glue for micro sensors and 5G antenna modules, its low dielectric constant (2.8@1MHz) and moisture resistance (80% strength retention at 100% humidity) can prevent signal attenuation and circuit corrosion.

High-end coatings and inks:

Used for anti-counterfeiting labels and flexible circuit printing, it supports micron-level pattern accuracy, and the scratch resistance after curing reaches 5H (Shore hardness), meeting industrial-grade durability requirements.

Medical and nail fields:

It has passed the biocompatibility certification (ISO 10993) and is suitable for bonding endoscope optical parts; in nail glue, the low VOC formula (<0.5%) and non-irritating odor enhance the user experience.

 

 

High tensile strength thiol-based adhesive for optical bonding

 

 

With the popularity of foldable screen mobile phones and smart wearable devices, the global optical adhesive market size is expected to exceed US$5 billion in 2026.

 

Shenzhen U-Sunny's Thiol-80 redefines the performance standards of thiol-based adhesives with high tensile strength, optical-grade light transmittance, and multi-scenario adaptability as the core. Whether it is precision optical manufacturing or consumer electronics innovation, Thiol-80 provides customers with efficient and reliable solutions. Contact the U-Sunny team now to obtain samples and technical parameters, and start a new era of high-precision bonding.