Permanent Adhesive LEXAN to ALUMINUM ??
I am ordering 1/4" thick transparent poly-carbonate (Lexan) and wish to adhere it to aluminum. Permanently. High strength bond. Then I need to discover the ideal poly-carbonate glue or cement. Actu...
Forum Discussion
Funny thing about LED's...
They'll be bonded to the heatsink with Arctic Silver adhesive. But radiation not convection is the thing that will heat the polycarbonate. It is a very poor thermal conductor so heat direct thermal transfer to the heatsink is not viable.
I have measured in excess of 20c differential between LED base temperature and lens temperature so radiated heat definitely is involved.
My aim is to maintain LED chip base temperature at 50c actual, or less.
Looks like Minnesota Mining Manufacturing VHB wins out here. For mounting to AL as well as bonding poly to poly. (3M is one of my USA -Hero- companies)
Thanks to a lively, informative discussion I better understand my options. Mil Gracias.
They'll be bonded to the heatsink with Arctic Silver adhesive. But radiation not convection is the thing that will heat the polycarbonate. It is a very poor thermal conductor so heat direct thermal transfer to the heatsink is not viable.
I have measured in excess of 20c differential between LED base temperature and lens temperature so radiated heat definitely is involved.
My aim is to maintain LED chip base temperature at 50c actual, or less.
Looks like Minnesota Mining Manufacturing VHB wins out here. For mounting to AL as well as bonding poly to poly. (3M is one of my USA -Hero- companies)
Thanks to a lively, informative discussion I better understand my options. Mil Gracias.
