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3225-T-SC data sheet - .PDF file.

The Dymax 3225-T-SC UV adhesive system from Intertronics has enabled Brandon Medical to resolve a cure time issue and to save considerable time in the production process.

Extended curing times for adhesives can often create a bottleneck in the production process that can interrupt workflow. This was exactly the problem that was being experienced by Brandon Medical.

Technical director Nigel Davill explained: ‘We had a problem bonding three polycarbonate lenses together to make the large front lens of our Quasar eLite operating theatre lamp. The two-part epoxy we were using had an extended fixture time, so we were looking for an adhesive that allowed us to handle and position the parts easily with an unlimited open time, and then to cure quickly using UV light.’

According to Davill, the problem with this approach was that, although the parts to be bonded are visually clear, the material has UV-absorbing properties — so getting the right amount of light-curing energy to the joint appeared to be tricky.

He added: ‘Fortunately, Matt Baseley and his colleagues at Intertronics came up with a simple solution that very successfully resolved things and saved us a considerable amount of time in the production process.’

Click on the link above to download the data sheet.

Key benefits of product application

  • Intertronics’ Baseley said: ‘Our Dymax 3225-T-SC is highly suited to this application — it is a single-part UV/visible light-curing adhesive that bonds to polycarbonate and many other plastics.’
  • The adhesive is readily dispensed, in this case using a benchtop robot, and typically cures in a few seconds.
  • It has a colour-change feature – this SeeCure product goes from blue to clear when fully cured, so that dispensing and cure can be checked visually. Brandon Medical can have reassurance of the correct adhesive amount in the bondline and adequate cure.
  • Intertronics supplied a small LED UV curing lamp with a 50 x 20mm emitting window, allowing it to be mounted on the robot that dispensed the adhesive.
  • The adhesive’s 395nm high-intensity output overcame the UV absorbance of the polycarbonate, providing enough light-curing energy to give Brandon Medical a fast cure, with less heat introduced into the polycarbonate modules compared with broad-spectrum lamps.

Intertronics

INTERTRONICS supplies a comprehensive range of bonding and protective materials – together with the associated consumables and equipment – to customers in high technology, high performance assembly industries – including electronics, medical device, plastics, optical, automotive, energy, defence and aerospace.

INTERTRONICS supplies a comprehensive range of bonding and protective materials – together with the associated consumables and equipment – to customers in high technology, high performance assembly industries – including electronics, medical device, plastics, optical, automotive, energy, defence and aerospace. The company supplies over 3,000 regular customers, including multinational manufacturing giants, production facilities, specialist design and development businesses, universities, training organisations and government establishments.

adhere is INTERTRONICS’ brand which encompasses its bonding, coating, sealing, encapsulating, potting, masking and gasketing materials, together with the most appropriate equipment and accessories for dispensing and curing them.

Because adhere brings together this proven range of integrated products from selected and trusted partners, INTERTRONICS’ customers have the confidence that everything will work together efficiently and cost-effectively, underpinned by the company’s experience and expert advice.

This advice is an essential element of the programme, and it ensures that customers benefit from the optimal material and process choice for the manufacture, assembly or repair of their products … safeguarding and enhancing performance and integrity and in turn, profitability and reputation.

Also key to customer success and satisfaction are the provision of process implementation and training, ongoing expert technical support and the assurance of highly competent supply chain management.

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