Bonding Medical Connecting Elements and Tubes

Connectors and infusion lines or tubes are usually made from plastics and are bonded. UV- and LED-curing acrylic-based adhesives are especially suitable for this purpose due to their short curing times, which speed up production and hence reduce production costs. Instant adhesives are used successfully for hard-to-bond substrates.

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Medical Grade Adhesives brochure (pdf)

Typical applications for bonding fluid lines, containers and pumps are:

Bonding infusion lines to tap bars
Bonding tube-filter unions
Bonding complete sets:
– Infusion sets
– Blood and medicine sacs
– Bonding tube-connector and tube-adapter connections to complete sets and systems

Because the adhesives can come into contact with the liquids at the bonded joints, the adhesives used must, in addition to being health-compatible and organically safe, be resistant to liquids and common sterilization methods. Adhesives used in flexible tubes systems must, furthermore, have the required flexibility and strength. Because of the tight fits of tubes and connectors, capillary-action adhesive systems are especially well suited for this application.

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Biocompatible adhesives are used for bonding plastic tube sets

Selection of our Adhesives for connectors and tube sets

The table below lists a selection of adhesives from Hoenle that are suitable for bonding connecting elements. Further products and custom solutions are available on request. To download the technical datasheets (TDS) please click on the adhesive name.

Adhesive	Viscosity [mPas]	Base	Curing	Substrates	Special Properties
Cyanolit® 732 F	230-350 (LVT, 25 °C, Sp. 2/60 rpm)	cyanoacrylate	moisture, room temperature	Ideal for bonding PVC, PMMA, ABS, PA, PC, EPDM, stainless steel	Film forming Suitable for bonding porous materials Biocompatible: certified to USP Class VI standards
Vitralit® 1703	85,000-130,000 (LVT, 25 °C, Sp. 4/3 rpm)	acrylate	UV	Bonding PC, ABS, SAN, hard-PVC	Fluorescing Shear thinning, shape retaining Certified according to USP Class VI Resistant to sterilization
Vitralit® E-7041 F	70 (Rheometer, 25°C)	acrylate	UV VIS	Bonding PMMA, PC, hard-PVC, PET-A, PET-G, PUR, PS, ABS, glass, stainless steel, steel, styrene	Fluorescing, capillary flow for quick filling and tight bond gaps, Restistant to sterilization, biocompatible: certified to USP Class VI and ISO 10993-5 standards CMR-free, IBOA-free
Vitralit® E-7311 FO	85 (Rheometer, 25°C)	acrylate	UV/VIS	High adhesion to PC, PMMA and metals	CMR-free, fluorescing orange biocompatible according to ISO 10993-5
Vitralit® UV E-4050	170 (Rheometer, 25°C)	acrylate	UV VIS	Bonding hard-PVC, PUR, PS, ABS, SAN, Glass, steel, stainless steel, PC (polycarbonate)	Certified to ISO 10993-5 standards, CMR-free, impact resistant, very fast curing very high adhesion to plastics
Vitralit® UV E-7030 LV	720 (Rheometer, 25°C)	acrylate	UV/VIS	High adhesion to PC and PMMA	IBOA-free, CMR-free Biocompatible according to ISO 10993-5

*UV = 320 – 390 nm VIS = 405 nm

Our Medical Bonding and Curing System Solutions

LED UV Curing Units

Biocompatible UV Curable Adhesives

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

Do you have any questions or need support for our bonding solutions? We are happy to help you.