What would be the worst case scenario of finishing a rod in a room that's around 62 degrees.

Worst Case: After four hours you walked back in the shop and stuck your finger in the finish to see if it was dry - realized what you had done - reached for a nitro pill to get control of heart rate - bottle empty - arythmia at 180 - had an accident with a state police car while on route to emergency room!! A small heater - electic - is cheap compared to all this trauma!

Gon Fishn

The finish will be thick and somewhat difficult to manage. You'll have plenty of pot life, of course, as it will take about half again as long to set up and cure as it would if you were in a room that was 72F.

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When in doubt, do a wet run. That is, mix some epoxy (it's cheap) and apply it to a pencil or whatever, which you can wrap with thread or not, as you please. In my 35 years in a laboratory, about half that time was spent doing "practice experiments", before I wasted (and ruined) the important stuff. Unfortunately, I wasted and ruined some important stuff anyway, but not as much as if I hadn't practiced!

My basement in winter stays around 62 deg, I used to heat it but this winter have not. I use Crystal Coat which is like flex coat. I t may take longer to set up but I haven't really noticed as I don't touch them till the next day anyways. Can't imagin you'll have a problem unless other finishes react differently

I LEAVE THE HEAT DOWN IN MY SHOP WHEN I PLAN TO FINISH IN WINTER BECAUSE I GET MORE POT LIFE AND PLENTY OF TIME FOR THE FINISH TO LEVEL. I USE LS HI BUILD MOST OF THE TIME OR FLEX COAT HI BUILD. EITHER ONE WORKS GOOD IN 60 TO 65 DEGREE TEMP. LS HAS LONGER POT LIFE IMO. IF YOU DON'T GO REALLY COLD YOU CAN'T STOP THE EPOXY FROM HARDENING, BUT THERE IS NO HURRY AS LONG AS YOU HAVE THE ROD TURNING ON A DRYER.
KEITH

Hello Bruce
Consider using PermaGloss it will cure just fine at that temperature. Another thought is to use LS Supreme High Build and turn it by hand in a your heated living quarters. The down side could be dust particles or pet issues or ? I have demonstrated this several times and have turned rods by hand that were repaired at fishing camps. U40 LS Supreme High build is very easy to work with and will level just fine when turned 180 deg at a time using a real expensive dryer like a card board box with notches in it that are fairly level. At 69 to 70 deg F it is necessary to turn it for about 1 hour assuming you used about 15 to 20 minutes of pot life to let any bubbles to disipate and put it on the rod. You could also use an incandesent lamps near the windings to provide heat and most any epoxy will cure just fine in a cool room.
Sincerely
Joe Kassuba

His Rod Shop
Joe Kassuba