Evan Gatehouse wrote:

My drum of epoxy has partially crystallized - blame a cold spring. Any
suggestions on how to warm up ~200 lbs of epoxy + drum short of
purchasing a drum heater??

I've thought of just painting it black and leaving it in the sun but
this year we've had only a few days above 20°C (~72F) and I need to get
the drum up to 120°F for a few hours to melt it all again.

I've also got a small 1500W electric heater that I keep pointed right at
the drum, which seems to melt a bit as I am using it, but I am beginning
to think I'm getting behind the melting rate!

I also have a 50,000 BTU Propane Heater that I can use in the garage
space I am borrowing, but no easy way to direct it toward the drum (it
mostly vents upwards like a kerosene heater).

Thanks, etc.

Evan Gatehouse

Build a tent around the drum, insulated with pink fiberglass. Duct
the heater to it with plastic film, or insulated ducting.

Might be too much heat to manage easily.

You can get heater tape intended for Canadian pipes. Wrap a few
around the drum, insulate the drum with some pink fibreglass, stand
it on a slab of styrofoam, plug it in, and wait. You may have to
use the thermostat as an ice cold drink caddy while you wait, or
wire a bypass around it.

Terry K