Product category:
Electronics Manufacturing Materials and Consumables
News Release from: Intertronics | Subject: Dymax Light-Cap coatings
Edited by the Electronicstalk Editorial
Team on 23 April 2004
Non-yellowing LED encapsulants cure in
seconds
Four new acrylate encapsulating resins, designed for brighter chip-on-board LED assemblies, are featured in a new Dymax selector guide available from Intertronics.
Four new acrylate encapsulating resins, designed for brighter chip-on-board LED assemblies, are featured in a new Dymax selector guide available from Intertronics When cured with a Dymax 2000-PC moderate intensity flood curing system, Light-Cap 9614, 9615, 9616 and 9617 offer superior optical transmission for the life of the assembly
This article was originally published on Electronicstalk on 2 Apr 2001 at 8.00am (UK)
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UV curing adhesives bond to 3000psi
According to UK distributor Intertronics, Dymax Series 800 adhesives form bonds to 3000psi on metal, ferrite, ceramic and glass surfaces.
Their resistance to elevated operating temperatures results in reduced yellowing over the life of the LED compared with traditional encapsulating resins.
The selector guide includes tests illustrating resistance to heat aging and yellowing over time, along with product properties and typical applications.
The resins contain cure mechanisms more sensitive to the spectral output of both visible and UV curing wavelengths, resulting in deeper, faster cures.
Fast cures in 30 to 45s with the Dymax 2000-PC curing system eliminate bottlenecks.
This cost effective system is available in multiple configurations and can be utilised with conveyorised or rotary indexing production lines.
Integrated curing chambers are available to accommodate the most basic or sophisticated assembly requirements.
Besides curing completely in only a few seconds, these UV/visible light curing coatings offer a wide range of high performance properties including lower stress on wire bonds, superior adhesion, multiple viscosities, minimal shrinkage and low outgassing.
Other characteristics described include good moisture resistance, optical clarity and excellent environmental resistance.
Dymax Light-Cap coatings and encapsulants form strong, solvent-free bonds to an expanded array of plastic and other substrates including UV absorbing clear or tinted grades of glass and plastics and semi-transparent materials such as FR-4 circuit boards and white ceramics.
Intertronics supplies a complete line of complementary curing and dispensing systems as part of its adhere solutions range.
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