Adhesives
“Time was not on our side when we made the discovery of the
colour shift from these potted LED units. Our client needed a
rapid solution, so we turned to Electrolube India and
Padmanabha Shaktivelu’s help was instrumental in achieving the
tight turnaround demanded. Electrolube’s UK technical team
pulled out all the stops to help us find a solution, the switch to
UR5635 proving especially successful as it avoided the need for
an additional diffuser medium, thereby saving costs for our
client.”
Electrolube Managing Director, Ron Jakeman, commented: “At
Electrolube, we have branded ourselves as the solutions people
because it truly resonates with everything that we strive for in
terms of product innovation, customer service and technical
support. The solution we suggested for Padmanabha, our General
Manager at Electrolube India, and the customer, Rockforest,
demonstrates how effective collaboration between our
international partners and the UK-based technical team can
deliver timely results for our worldwide customer base. We now
have a brand new manufacturing plant in India and are
represented in over 50 countries, which enables us to provide all
our customers with genuine security of scale and a robust global
supply chain, so when the unexpected happens, we’re more than
capable of delivering a truly unique service anywhere in the
world. Together with our expansive product portfolio, our valueadded services enable customers to find successful solutions for
all their production needs.”
There are several requirements for protection compounds within
LED applications. Typical examples include optically clear
compounds for protecting the LED itself and thermally conductive
materials to help dissipate heat away from the LED array or LED
lighting unit. Other necessary properties are UV resistance, colour
stability of the resin and minimal colour temperature shift of the
LED.
colour temperature - in this case, one operating in the 2,500K to
the 3,000K range. By potting these with the UR5634 resin to the
specified 5.5mm depth, it potentially could bring the light back to
the desired colour. The second option was that Rockforest
assesses the amount and type of resin they were using for this
project to see if a thinner layer of resin over the top of the LED
array would reduce the colour shift effect.
Ultimately, Padmanabha Shaktivelu persuaded Rockforest to
switch to UR5635, Electrolube’s semi-rigid polyurethane resin,
formulated with a ‘hazy/cloudy’ appearance that is ideal for
dispersing light. The diffused light produced by this resin meant
that an additional diffuser medium was no longer necessary,
allowing the customer to achieve the required aesthetic
appearance and, through trials with various resin potting depths,
the correct colour temperature. During these trials, the rapid gel
time of UR5635 caused a complication but Padmanabha solved
this problem by suggesting a staged potting procedure.
In this instance, Electrolube's UR5635 was the perfect LED
protection solution for the customer. UR5635 is a two-part, semirigid polyurethane resin which has been formulated to have a
light diffusing effect. Due to its cloudy appearance and unique
capability to diffuse light, UR5635 has been well received by
manufacturers as an effective and reliable LED resin for both
decorative and protective applications. It exhibits outstanding
water and weather resistance, as well as excellent resistance to
acids and alkalis making it suitable for a wide range of
environments and an extremely durable potting compound.
UR5635 is also resistant to UV light, making it especially useful as
an outdoor LED encapsulant or for use in other applications
where it may be exposed to direct sunlight.
Contact: Electrolube India, Padmanabha Shaktivelu, General Manager
Electrolube India, Direct:+91 80 2972 3099, Email: [email protected]
Following the highly successful outcome of this project,
Rockforest Technologies India Pvt Ltd, Managing Director, Bipin
Rajgopal commented:
ELE Times | 16 | November, 2016