Medical Device Assembly
Hoenle has formulated a wide range of medical grade adhesives to address the countless number of bonding and sealing operations being performed in global medical device assembly. Hoenle adhesives can be used to bond the structural components of medical devices, be applied as protective coatings, form conductive attachments, and prevent device failure from contamination and leakage. Applications include the sealing of housings, reservoirs, filter cartridges, and blood oxygenators. Additional applications involve the assembly of respiratory circuits, transducers, diagnostic devices, syringes, catheters, and tubing sets.
High performance Adhesives for Medical Device Assembly
The diversity of applications requires high performing adhesives with a wide range of properties. Adhesives must be capable of bonding multiple substrates of varying Coefficients of Thermal Expansion (CTE). To optimize dispensing and component configurations required adhesive viscosities range from water-like to non-flowing gels. To compensate for inclusion of UV inhibitors in molded plastics, UV adhesives must be able to cure using visible light wavelengths. For opaque materials, adhesives must be able to fully cure without light energy as a primary catalyst. Each medical grade adhesive must be able to pass ISO10993 and/or USP Class VI biocompatibility testing and be compatible with common sterilization methods including EtO, gamma, and Electron Beam (EB). For visual assurance of adhesive presence, adhesives with highly visible fluorescent indicators are highly beneficial. The medical grade adhesive portfolio from Hoenle contains adhesives that meet these criteria.
The two parts of a plastic dialysis filter are being bonded with fluorescent adhesive
Selection of our Adhesives for medical device assembly
The table below lists a selection of biocompatible adhesives from Hoenle for bonding various substrates typically utilized in medical device manufacturing. Additional products can be evaluated for unique applications. To download the technical datasheets (TDS) please click on the adhesive name.
| Adhesive | Application Areas | Viscosity [mPas] | Base | Curing | Substrates | Special Properties |
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1,300-1,800 (Brookfield LVT, 25 °C, Sp. 3/60 rpm) | cyanoacrylate | moisture, room temperature |
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400 (LVT, 25 °C, Sp. 2/60 rpm) | cyanoacrylate | atmospheric moisture / room temperature |
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30,000-45,000 (LVT, 25°C, Sp. 4/6 rpm) | epoxy | thermal |
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200-400 (LVT, 25°C, Sp. 2/30 rpm) | epoxy | UV secondary heat cure |
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85,000-130,000 (LVT, 25 °C, Sp. 4/3 rpm) | acrylate | UV |
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2,100 (Rheometer, 25°C, 10 s^-1) | acrylate | UV/VIS |
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*UV = 320 – 390 nm VIS = 405 nm
Our Bonding and Curing System Solutions
Hoenle provides complete adhesive bonding solutions for optimal production efficiency and productivity. Pairing Hoenle UV Medical grade adhesives with the appropriate Hoenle UV or LED curing system ensures that the adhesives are thoroughly cured in the shortest possible cycle time. Hoenle curing equipment offers a full range of curing wavelengths, adjustable intensities, and is cleanroom compatible. The equipment is programmable with full monitoring capability to maintain the highest level of process control.
Contact And Support
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