XLAMP
®
MH FAMILY LED SOLDERING & HANDLING
© 2014-2021 Cree LED. The information in this document is subject to change without notice. Cree
®
and the Cree logo are registered trademarks, and
the Cree LED logo is a trademark, of Cree, Inc. XLamp
®
is a registered trademark of Cree LED. Other trademarks, product and company names are
the property of their respective owners and do not imply specific product and/or vendor endorsement, sponsorship or association. This document is
provided for informational purposes only and is not a warranty or a specification. For product specifications, please see the data sheets available at
www.cree-led.com.
CLD-AP193
REV 4
10
CHEMICALS & CONFORMAL COATINGS
Below are representative lists of chemicals and materials to be used or avoided in LED manufacturing activities. For a complete and current
list of recommended chemicals, conformal coatings and harmful chemicals consult Cree LED’s
Chemical Compatibility Application Note
.
The video at
www.youtube.com/watch?v=t24bf9D_1SA
illustrates the process Cree LED has developed for testing the compatibility of
chemicals and materials with LEDs. You should also consult your regional Cree LED Field Applications Engineer.
Recommended Chemicals
In testing, Cree LED has found the following chemicals to be safe to use with XLamp MH Family LEDs.
•
Water
•
Isopropyl alcohol (IPA)
Chemicals Tested as Harmful
In general, subject to the specifics in Cree LED’s
Chemical Compatibility Application Note
, Cree LED has found certain chemicals to be
harmful to XLamp MH Family LEDs. Cree LED recommends not using these chemicals anywhere in an LED system containing XLamp MH
Family LEDs. The fumes from even small amounts of the chemicals may damage the LEDs.
•
Chemicals that might outgas aromatic hydrocarbons (e.g., toluene, benzene, xylene)
•
Methyl acetate or ethyl acetate (i.e., nail polish remover)
•
Cyanoacrylates (i.e., “Superglue”)
•
Glycol ethers (including Radio Shack
®
Precision Electronics Cleaner - dipropylene glycol monomethyl ether)
•
Formaldehyde or butadiene (including Ashland
®
PLIOBOND
®
adhesive)
Hermetically Sealing Luminaires
For proper LED operation and to avoid potential lumen depreciation and/or color shift, LEDs of all types must operate in an environment
that contains oxygen. Simply allowing the LEDs to ventilate to air is sufficient; no extraordinary measures are required. Hermetically
sealing LEDs in an enclosed space is not recommended.
