Hi Forum!
I wanted to get opinions on Coolant spray that teams have used to cool down their motors between matches this year.
Our drive has a high ratio and when put through 6 matches almost back to back (at most a 5 min break in between 2 matches but most of the time less) it started consistently burning out unlike it usually does. Thanks in advance
Most teams I have seen use a compressed air can upside down. Probably not the safest, but effective and I haven’t seen any issues with it. I keep one in my box, and use it occasionally during elimination matches. Normally my motors don’t get overheated; I only use it if something goes wrong.
We use cans of air/gas duster. We turn them upside down to get the propellant to come out which is very cold.
Hint: don’t use ice! Water vapor condenses and it soaks the motors 
This is life changing for me! I must change the robot now lol
If you have little time between matches, I would recommend using it. Our team used it on our flywheel when we did back to back skills run because there was no one in line. 
It definitely does help, so I would suggest to keep it with you just in case during a competition.
I’ve used dust off and that works well.
How are folks using the spray? Are you opening the motors to spray directly on the PTC or just spraying the outside of the housing?
From what I have observed, the PTC in the is not touching the motor housing. If you are simply spraying the outside, it seems unlikely you are conducting enough heat away to make a difference
Actually the bottle that I gave you guys is and actual coolant spray that is more powerful than compressed air.
Ok.
And what is it called/ where would I be able to get it?
this is the one that w use now and it is kinda cheap we go through 1 a compititoin.
http://www.amazon.com/Bio-Freeze-Therapy-Relief-Degree/dp/B00B4IJ634/ref=sr_1_5?ie=UTF8&qid=1456161068&sr=8-5&keywords=coolant+spray
We’ve had good luck with this freeze spray; it seems to be the cheapest on Amazon in terms of price per unit volume.
Biofreeze is an analgesic that gives a person the sensation of cold and helps to relieve different sorts of pain.
Biofreeze won’t cool down your electronics, but does help if you have aches, pains or soreness after a rough day of robotics.
Whoops derby me sorry about that here is the right one. 
http://www.amazon.com/Professional-Freeze-Electronic-Component-FR-777-777/dp/B000Z99ZCA
They just cool the outside. Since the air is trapped in the casing, if you cool the casing enough the air will cool the PTC.
I’ve only had a few issues with PTCs this year and they’ve been with mecanum on a heavy robot and a badly made flywheel on bent metal. Also try not using so much current on the motors if all of it is not needed; this reduces the rate at which the ptc heats up.