UV Adhesives
Adhesives have special properties that cure when exposed to UV light at a certain wavelength. This process takes place in seconds, which enables high cycle rates in production, simplified quality controls and lower process costs.
DREI BOND offers an extensive portfolio of UV-curing adhesives for applications in a wide variety of industries where, among other things, the aim is to achieve transparent results. The decisive factor for the use of these adhesives (with the exception of UV epoxies) is that one of the materials to be bonded is permeable to the wavelength of the UV light required in order to allow the adhesive to cure.
Acrylates
UV-curing acrylates achieve maximum strengths after curing. In the DREI BOND product portfolio you will find UV acrylates with different viscosities so that they can be selected specifically for the needs of the application.
Epoxies
If the adhesive is in shadow areas after application, in which the UV light does not reach for structural reasons, or if components that are impermeable to UV rays are used, the UV-curing epoxies can be used. Despite the somewhat delayed curing, very high strengths are achieved after curing, comparable to the acrylates.
Silicones
If a flexible sealant is required for the application that is to be cured quickly and in a targeted manner, the UV-curing silicones from DREI BOND can be used. After curing, these are characterized by their very high deformability and can ideally be used to seal all materials. No cleavage products are generated during curing, so there is no risk of material damage or blistering.
Dual-curing adhesives (UV / AE)
Dual-curing adhesives can be used for special applications in which rapid curing is to be achieved with a UV adhesive, but there are shadow areas. The dual-curing adhesives from DREI BOND are both UV and anaerobic curing. For this reason, the shadow areas must allow anaerobic curing (metal contact and oxygen exclusion) so that a complete curing of the adhesive is guaranteed.
DREI BOND - UV Adhesives
| Name | Description | Color | Viscosity [mPas] | Temperature Range [°C] | Special Features | Container [ml] | |
|---|---|---|---|---|---|---|---|
| 6020 | UV-acrylate | colorless | 2200 - 2900 | -55 up to +120 | 50, 250, 2000 | Request Product Sheet | |
| 6022 | UV-acrylate | colorless | 5500 - 7500 | -55 up to +120 | 50, 250, 2000 | Request Product Sheet | |
| 6023 | UV-acrylate | colorless | 50 - 100 | -55 up to +120 | 50, 250, 2000 | Request Product Sheet | |
| 6046 | UV-acrylate | colorless | 7000 or 36000 | -40 up to +130 | flexible | 30 | Request Product Sheet |
| 6063 | UV-acrylate | colorless | 200 - 300 | -55 up to +120 | specifically designed for PC, PVC, ABS | 250, 2000 | Request Product Sheet |
| 6065 | UV-acrylate | colorless | gel | -55 up to +120 | flexible | 50, 300, 2000 | Request Product Sheet |
| 6065L | UV-acrylate | colorless | 150 - 200 | -55 up to +120 | flexible | 50, 2000 | Request Product Sheet |
| 6099 | UV-acrylate | colorless | gel | -55 up to +120 | 50, 300, 2000 | Request Product Sheet | |
| 6288 | 2C UV-epoxy | milky | 4000 - 5500 | -55 up to +180 | curing via UV-LED | 50 | Request Product Sheet |
| 6080 | UV-epoxy | colorless to whitish | 300 | -55 up to +150 | Curing in shadow areas possible | 50, 250, 1000 | Request Product Sheet |
| 6090 | UV-epoxy | colorless to whitish | 4000 | -55 up to +150 | Curing in shadow areas possible | 50, 250, 1000 | Request Product Sheet |
| 2054 | dual cure (AE/UV) | blue | 2500 - 50000 | -55 up to +150 | dual curing (AE/UV) | 50, 250, 5000 | Request Product Sheet |
| 6060 | dual cure (AE/UV) | colorless | 1200 - 1700 | -55 up to +120 | dual curing (AE/UV) | 50, 250, 2000 | Request Product Sheet |
| 6066-10 | dual cure (AE/UV) | colorless | 25 - 50 | -55 up to +150 | dual curing (AE/UV) | 50, 250 | Request Product Sheet |
Note on the UV wavelength: We recommend UV light sources with 100 mW / cm2 at 365 - 420 nm. *Container (PU): 50ml (10), 250ml (10), 300ml (12) | |||||||
F.A.Q.
When and where does it make sense to use UV adhesives?
Adhesives that cure using UV rays are particularly useful if curing is to be controllable, i.e. if it is to take place at a selected time. At the same time, very high curing speeds (within seconds) are possible, so that short cycle times can be achieved in production. UV adhesives are also suitable for applications in which the bond should be invisible, as the adhesives are transparent and (usually) colorless.
What is special about UV adhesives?
UV adhesives only harden when they are exposed to UV light. Up to this point, they remain liquid. As soon as they are irradiated, they cure within seconds. This property allows components to be precisely aligned before curing without having to observe a pot life or similar.
What should always be considered when using UV adhesives?
Reliable bonds are only created where UV light of the right wavelength can act unhindered on the bonded surfaces. Therefore, at least one of the materials must be permeable to the required wavelength or the radiation must hit the adhesive directly. Special UV-curing adhesives are available for applications where undercuts or shadow areas exist.
For which industries are UV adhesives perfect?
UV adhesives are ideal for a wide range of industries, for example for the manufacture of glass furniture, glassware and acrylic glass, for the optical industry, the electronics sector and medical technology.