Low Refractive Index Polyurethane Acrylate UV Resin

Low Refractive Index Polyurethane Acrylate UV Resin

T-6125NS is a nano-filled, low refractive index optical UV resin based on polyurethane acrylate chemistry. It is designed for advanced optical coating applications where precise refractive index control, thin-film uniformity, and high optical clarity are essential. Cured by acrylate free-radical polymerization, T-6125NS delivers an ultra-low refractive index of 1.25. It combines rapid curing, good surface drying, excellent re-adhesion and recoatability, and strong compatibility with acrylate UV resins and monomers. Whether you are developing AR/VR display films, multi-layer optical laminates, or submicron and nanoscale coatings, T-6125NS provides a reliable material platform for high-performance optical designs.
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Product Overview

T-6125NS is a nano-filled, low refractive index optical UV resin based on polyurethane acrylate chemistry. It is designed for advanced optical coating applications where precise refractive index control, thin-film uniformity, and high optical clarity are essential.

Cured by acrylate free-radical polymerization, T-6125NS delivers an ultra-low refractive index of 1.25. It combines rapid curing, good surface drying, excellent re-adhesion and recoatability, and strong compatibility with acrylate UV resins and monomers.

Whether you are developing AR/VR display films, multi-layer optical laminates, or submicron and nanoscale coatings, T-6125NS provides a reliable material platform for high-performance optical designs.


Key Features

Ultra-low refractive index: RI 1.25

Nano-filled polyurethane acrylate UV resin

Acrylate free-radical UV curing system

Fast curing with good surface drying

Excellent re-adhesion and recoatability

High compatibility with acrylate UV resins and monomers

Low haze and high light transmittance

Suitable for submicron and nanoscale coatings

Fluorine-free formulation

Supports multi-layer film bonding and lamination

Broad process adaptability


Typical Properties

Property Value
Tg 70°C
MW (GPC) 650
Elongation at Break 20%
Acid Value max. 1 mg KOH/g
Refractive Index 1.25
Viscosity at 25°C 100–300 mPa·s
Specific Gravity 1.05
Effective Content 50–55%

Typical values are for reference only and should not be used as specification limits.


Applications

AR/VR Display Films

T-6125NS is particularly suitable for AR/VR display film applications. Its low refractive index and nano-filled formulation help enable precise optical design while maintaining extremely low haze and high light transmittance.

Submicron and Nanoscale Optical Coatings

The resin is compatible with low film thickness requirements, including submicron and nanoscale coatings. This makes it suitable for advanced optical layers where thickness control and optical clarity are critical.

Multi-Layer Film Lamination

T-6125NS offers good re-adhesion and recoatability, allowing it to be used in multi-layer film composites and lamination processes. It is fluorine-free and can bond multiple film layers with wide process adaptability.

UV Optical Coatings

As a UV-curable polyurethane acrylate resin, T-6125NS can be used in various optical coating systems where low refractive index, fast cure, and compatibility with acrylate chemistry are required.


Compatibility and Processing Notes

Monomer Compatibility

T-6125NS is miscible with various acrylate UV monomers. To maintain the desired low refractive index, it is recommended to minimize the amount of monomer used.

Solvent Compatibility

T-6125NS is miscible with ester, ketone, and aromatic solvents. It is not soluble in a single alcohol solvent, but it can dissolve in mixed solvents containing alcohols and ethers.

Curing Mechanism

T-6125NS uses acrylate free-radical UV curing. It cures rapidly and shows good surface drying.


Packaging

Available in:

100 g

5 kg

20 kg plastic drums

More detailed application reference materials and MSDS are available upon request.


Why Choose T-6125NS?

T-6125NS is developed for formulators and optical engineers who need a low refractive index UV resin that does not compromise on processability. Its combination of ultra-low RI, nano-filler technology, fast UV cure, recoatability, and compatibility with acrylate systems makes it a strong candidate for next-generation optical coatings.

Key benefits include:

Ultra-low refractive index of 1.25

Excellent optical clarity with low haze

High light transmittance

Fluorine-free formulation

Good re-adhesion and recoatability

Compatible with multi-layer film bonding

Suitable for AR/VR display films

Adaptable to submicron and nanoscale coating processes


Contact Us

For samples, technical data sheets, MSDS, or application support for T-6125NS, please contact our team. We can help you evaluate whether this low refractive index polyurethane acrylate UV resin is suitable for your optical coating project.

T-6125NS - Low Refractive Index UV Resin for Advanced Optical Coatings.

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