|Most of you are familiar with the coolant in your lasers --3M
FC-40 or FC-770. For those of you who are not familiar with it,
this is the short version description or you can go directly to
Fluorinert prices .
Some medical laser system manufacturers like Sharplan, Lumenis, Deka,
SmartXide Dot etc. recommend 3M Fluorinert
FC-770, a specialty fluid from 3M™, as coolant for their laser
tubes. It is a colorless, odorless liquid (just like water) and
if you get some of it on your fingers, it is harmless (just wash
your hands with water).
Here is the description from 3M web site:
- Heat Transfer Fluids :
The wide liquid range of Fluorinert™ liquid FC-770 (-127°C to
95°C) make it ideal for use in Automated Test Equipment
(ATE) and other semiconductor process equipment. Its high
dielectric strength means it will not damage electronic equipment
or semiconductor wafers, chips or packages in the event of a leak
or other failure. In addition, FC40 and FC770 liquid are
chemically stable, nonflammable and non-toxic.
When you remove for service and re-install a medical laser
tube, some of the FC-770 fluid gets spilled and is lost. Most of
you need 'a little' to fill the laser tube or 'top off' the reservoir, sometimes less than
'a cup full'.
Since 3M supplies Fluorinert liquids in 5 Kg ( and larger) containers, you need to figure
How much Fluorinert do I need ?
Either of Fluorinert™ FC-40 or FC-770 are about 2 times heavier
than water. Here are some rough calculations for figuring how much FC-40 / FC-770 liquid you need to purchase to fill your laser tube / system:
1000 cc of water = 1 kg = 2.2 lbs.
1000 cc FC-770 ~ 2 kg = 4.4 lbs
500 cc FC-770 ~ 1 kg = 2.2 lbs
250 cc FC-770 ~ 1/2 kg ~ 1 lbs
A Cup is 8 Oz = 237 cc. A can of Coke is 355 cc (12 Oz).
A Deka 30 Watt tube, just the glass tube by itself, takes 100 cc
Sharplan 20C, 30C and 40C tubes, just the glass tube by itself, take 100 cc
If system reservoir is also emptly, count on 500 cc total but you will have some leftover Fluorinert.