Light-curable adhesives
Light-curable adhesives are available in two types: UV-light curable and visible-light curable. They are one-liquid adhesives that undergo polymerization curing at room temperature as they react with high sensitivity to wavelength regions emitted by each light irradiating device. We offer products that employ UV-light and anaerobic curing mechanisms as well as visible light and UV-light curable polymer products in order to meet the requirements of different adherend structures.
- Product Name
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ARONIX
Features
Excellent workability
One-liquid type and requires no measuring or mixing.
Improved productivity
Cured by light in a short time, reducing work time and cost.
Wide selection and design
Enables a wide selection and design of curing wavelength, anaerobicity, and cured product characteristics.
| Type | Series | |
|---|---|---|
| Light-curable adhesives | Visible light and UV-light curable types | ARONIX LCR Series |
| UV anaerobic curing type | ARONIX BU Series | |
| UV-light curable type | ARONIX UV-3000 Series |
Curing wavelength regions
Capable of adhesion within a wide wavelength region of UV-light and visible light. An anaerobically curable type is also available for adherend not exposed to UV-light based on the material and shape.
Usage
- Can be used for bonding a wide range of materials, including electronic parts, metals, glass, and plastics.
- Suitable for bonding and assembling optical parts thanks to its excellent transparency.
- The low shrinkage and low stress type is best suited for precision fixing.
- Adjustable curability, hardness and viscosity.
Specifications
Visible light and UV-light curable types
ARONIX LCR Series
The ARONIX LCR Series of adhesives are curable within a wide range of wavelength regions from UV-light to visible light. As visible light can easily transmit through transparent and semi-transparent materials that are impermeable to UV-light, these materials can be bonded in a few seconds with light irradiation from above. Visible light is relatively safer for the human body in comparison to UV-light, and its light source equipment is also cheaper.
Features of ARONIX LCR Series
- Responds to a wide wavelength region between UV-light and visible light.
- Capable of bonding transparent and semi-transparent materials (PVC, polycarbonate, acrylic, ABS, etc.) that are impermeable to UV-light in a few seconds.
- Available in a wide range of grades, including a soft type with excellent stress relaxation, and a hard type selected based on the adherend material, such as resin, glass, or metal.
- Suitable for bonding and assembling optical parts thanks to its excellent transparency.
- The low shrinkage and low stress type is best suited for precision fixing.
| Main grades | LCR0628A | LCR0632 | LCR0643 | |
|---|---|---|---|---|
| Appearance | Colorless and transparent | Colorless and transparent | Milky white | |
| Viscosity (mPa・s, 25℃) | 12,000 | 4,000 | 75,000 | |
| Hardness (Shore D, 23℃) | 35 | 45 | 83 | |
| Refractive index (nd, 25℃) | 1.5 | 1.49 | － | |
| Water absorption rate (23℃ in water 24hr, %) | 0.91 | 0.75 | 0.14 | |
| Expansion rate (%) | 130 | 120 | － | |
| Tensile modulus (N/mm2) | 9.8 | 290 | 116 | |
| Glass transition temperature (℃) | 40 | 78 | 83 | |
| Thermal expansion coefficient (/℃, 30℃) | 1.5×10-4 | 1.1×10-4 | 3.5×10-5 | |
| Thermal expansion coefficient (/℃, 150℃) | 2.2×10-4 | 2.7×10-4 | 6.5×10-5 | |
| Curing shrinkage rate (%) | 4.7 | 6.5 | 2.4 | |
| Tensile shear strength (MPa) | Glass/Glass | 4.5 | 13.8 | 14.6 |
| Acrylic/Acrylic | 2.5 | 1.8 | － | |
| Features and usage | Low shrinkage, flexibility, transparency | Excellent transparency | Low curing shrinkage and low thermal expansion coefficient | |
ARONIX LCR Series areas of use
UV and anaerobic curing type
ARONIX BU Series
The ARONIX BU series is a one-component, solvent-free, UV-curable anaerobic adhesive. It has excellent tensile strength, peel strength, impact strength, and durability, and is used in a wide range of fields where adhesive reliability is required, including weak electric appliances, electronics, and automobiles.
Features of the ARONIX BU Series
- Since instantaneous adhesion can be achieved by UV irradiation, work time can be significantly shortened.
- Grades with anaerobic curing properties will cure even in areas not exposed to UV light.
- The range of adhesive applications can be expanded by using primers, heat, etc. in combination.
- One-component, no measuring or mixing required for convenient handling.
- Since oligomers are the main ingredient, there is almost no skinning.
| Main grades | BU-810 | BU-510U | BU-730UF |
|---|---|---|---|
| Appearance | Light yellow | Amber | Amber |
| Viscosity (mPa・s, 25℃) | 6,500 | 50 | 8,500 |
| Hardness (Shore D, 23℃) | 64 | 78 | 78 |
| Refractive index (nd, 25℃) | － | 1.54 | 1.50 |
| Glass transition temperature (℃) | 97 | 117 | 102 |
| Curing shrinkage rate (%) | 8.2 | 13 | 7.0 |
| Set time (iron/iron)*1 | 30 seconds*1 | 20 seconds*2 | 20 seconds*2 |
| Tensile shear strength (iron/iron)*1 (MPa) | 8.7 *1 | 17.0 *2 | 14.0 *2 |
| Features and usage | Light curability, good primer curability For fixing motor magnets |
Low viscosity, For coating |
High viscosity Printed circuit board and coil bonding |
*1 AT Quicker CM used in combination with AT Quicker VA3
*2 AT Quicker VA3 used together
Application fields of Aronix BU series
UV-light curable type
ARONIX UV Series
The ARONIX UV Series represents our lineup of one-liquid UV-curable resin compound products based on the ARONIX M Series of special acrylic monomers and oligomers developed by Toagosei.
Features of ARONIX UV Series
- One-liquid type with excellent workability
- Curable by UV-light within a short time.
Enables automation and faster-paced manufacturing, while drastically cutting down costs. - Select and design from a wide range of curing methods and cured product characteristics.
Can also be used in conjunction with heat curing if needed and can be used to cure a range of film thicknesses.
Cured products can be made anywhere ranging from tough to soft with elasticity.
ARONIX UV Series areas of use
Bonding a wide range of materials, including electronic parts, metals, glass, and plastics.
Adjustable curability, hardness and viscosity.
| Grades | UV－3300 | UV－3610 *2 | |
|---|---|---|---|
| Appearance | Light yellow | Light yellow | |
| Viscosity | 4,500 | 600 | |
| Hardness (Shore D, 25℃) | 83 | 60 | |
| Flash point (℃) | 95 | 105 | |
| Number of curable passes *1 | 2 | 1 | |
| Curing shrinkage rate (%) | 8 | 8 | |
| Expansion rate (%) | 20 | 130 | |
| Tensile shear adhesive strength (MPa) | Steel/Glass | 6.0 | 5.5 |
| Glass | 5.0 | 4.5 | |
| PMMA | 5.0 | 4.0 | |
| PVC | 2.0 | 5.0 | |
| PC | 4.0 | 5.0 | |
| Features and usage | For metals and glass | For plastics | |
*1 80W/cm high pressure mercury lamp condensing type, lamp height 10 cm, conveyor speed 10m/mm, Mylar coated
*2 Contains N-Vinyl-2-pyrrolidone
Inquiries
- Department in charge
- New Products Development Div.
