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/SH-D1370 High Transparency Ultra Low Refractive Index UV Curing Adhesive for Fiber Optic Coating & Optical Bonding 10ml

SH-D1370 High Transparency Ultra Low Refractive Index UV Curing Adhesive for Fiber Optic Coating & Optical Bonding 10ml

Product Introduction

RADTECH® UV Curable Adhesive SH-D1370 is a single-component, highly transparent, low-refractive index UV curable adhesive. It cures rapidly under ultraviolet light of a specific wavelength. It is suitable for coating protection at fiber optic fusion splices to reduce coupling loss; suitable for fiber optic outer coatings to reduce light transmission loss; and suitable for the preparation of special functional film coatings. It features excellent moisture resistance, flexibility, and an ultra-low refractive index, making it suitable for surface coating on silicon-based substrates.

Typical Applications:

  • Used for fiber optic inner coatings;
  • Used for coupling protection at fiber optic connectors;
  • Special optical bonding;
  • Preparation of special optical films and nanoimprinting;


  • Product Detail

Properties Before Curing

Property Typical Value
Appearance Transparent
Base Chemical Composition Fluoroacrylate
Viscosity (mPa.s)
Brookfield 6# Rotor 20rpm
2000 - 3000
Density (g/cm³)
(GB/T13354-1992)
1.55 ± 0.1
Liquid Refractive Index (Abbe Refractometer) 1.367

Curing Characteristics

365-395 wavelength LED curing or high-pressure mercury lamp curing (nitrogen protection is recommended during high-speed curing).


Property Value
Curing Energy Above 1000mj
Water Absorption (%, 24h @ 25° C) 2.0
Solid Refractive Index (Abbe Refractometer) 1.376
Elongation at Break 46%
Young's Modulus (MPa) 121
Tensile Strength (MPa) 7.5
Red Light Region Transmittance (200μm) % 87
Visible Light Region Transmittance (200μm) % 83
Hardness (Mercury Lamp Curing) 62D ± 10
Density (g/cm³) (GB/T 13354-1992) 1.58 ± 0.07
Dielectric Constant (1MHz) (GB/T 1409-2006) 3.5
Surface Resistivity (Ω) (GB/T 1410-2006) 4.0×10¹⁵

Instructions for Use
The product is used for bonding or surface micro-structuring, and can also serve as an outer optical coating; the application surface should be cleaned thoroughly.
Various application processes such as cup coating, spin coating, and dispensing can be used. The product has strong leveling properties and is not prone to bubble formation. Nitrogen gas protection is required when applying ultra-thin coatings.
The curing speed of this product depends on the intensity of the ultraviolet light, the distance between the light source and the adhesive layer, etc. The adhesive must be protected from light during the application process.
Precautions
Keep out of reach of children.
Do not pour dispensed adhesive back into the original packaging to avoid contamination.
This product contains acrylates, which are irritating to the skin and eyes. If it accidentally contacts the eyes or skin, rinse immediately with clean water and seek medical attention.
When the customer's storage temperature is below 20°C, to ensure usage效果 (performance), the customer should warm the product to 25°C before use.
Please refer to the product's MSDS for details.
Packaging Specifications
Order Code: XG-D1370
Packaging: 10g/tube, 1Kg/pail, 4Kg/pail.
Storage Conditions
Store sealed in a cool, dry place at 8-25°C. Do not expose to high temperatures, and do not store below 0°C. Avoid exposure to ultraviolet light or sunlight.
Shelf Life: 6 months sealed.

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