Optical Sensor Bonding
DELO KATIOBOND adhesives provide a fast, reliable, and high-performance solution for bonding PBT-packaged optical sensors to thermoplastic housings.
What do Optical Sensor Bonding Adhesives do?
In automotive steering systems, optical sensors must be bonded with extreme precision to ensure accurate performance across all axes (x, y, z, and theta). A heat-cured adhesive is not possible due to the very short cycle times required: < 20 seconds per device. Two sensors per device makes cure time even more critical.
Because both components are dark in colour, so using a pre-activated adhesive is the only solution. Pre-activation is achieved in 2 seconds at 1,000 mW/cm2, and there is enough adhesive visible after the joining process to illuminate for a further 5 seconds at 5,000 mW/cm2 and therefore achieve high initial handling strength. Simultaneous curing of both bond areas using dedicated light-guides meets the cycle time requirement.
Immediately after assembly, the finished components are electrically tested at +85°C, further curing the DELO KATIOBOND adhesive and also increasing the handling strength of the bonded parts. Full testing is then carried out to the most demanding automotive standards.
Key Features of DELO KATIOBOND
- Light-activated versions can be used in opaque applications
- Very fast curing to minimise process costs
- Epoxy base ensures dry surface after cure
- Excellent chemical resistance
- One-part, ideal for manual or automated processing
Why DELO KATIOBOND?
- Fast Light-Curing: Pre-activation in just 2 seconds at 1,000 mW/cm², followed by 5 seconds of post-illumination at 5,000 mW/cm², delivers high initial handling strength within tight cycle times (<20 seconds per device).
- Dry Surface Finish: Epoxy base ensures a clean, dry bond line after curing.
- Excellent Chemical Resistance: Withstands exposure to automotive fluids and harsh environments.
- One-Part Formulation: Simplifies processing for both manual and automated production lines.
- Opaque Compatibility: Suitable for dark-coloured components where traditional UV curing is ineffective.
Got a Question About Light Activated Adhesives?
Whether you’re developing a new product or refining an existing process, Inseto’s team of experts is here to help.
From selecting the right light activated adhesive to optimising your curing process, we provide technical guidance, documentation, and samples to support your application needs.
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Further Information
Applications
Adhesives for Automotive Bonding, Joining and Sealing Applications
Industry Segments
Automotive, Transport, High Reliability
Delo Website
Region
Available from Inseto in the United Kingdom & Ireland
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