Epoxy and cold shop

[OJ86]

This will probably be the last time I use epoxy in the winter months at home. Its just too much stress. I rarely take stuff down to metal. The limited stuff I do I'll just spot in with etch. I love the epoxy in the summer months though!

 

[GLHX]

Originally Posted by bmenard
Well the shop has a furnace and I own two big salamanders, I guess I just don't understand how long the epoxy needs to be above a certain temp. The way it sounds is like it will all peel off if it isn't at 70 degrees for weeks or months after application. With all the dire warnings about cold, i am just a little apprehensive. If I knew to keep it at X temp for X long I could make it happen, as long as it wasn't weeks or something.

Barry:
Bring metal temp up to 70, shut off heat. Spray coat of epoxy and give 30 minutes flash, don't worry the temp is dropping at this time.
When done and aired out, set heat to 70 (air) for 24 hours and you are good to go.

Crash.....why do you leave it at 60° for 7 days?

Can I spray epoxy and keep the metal 70° for 24 hours.......shut the heat down......let the shop get down to 40° for 5 days

Come back and heat the shop back to 70° And spray high build because I'm in my 7 day window??

You got me worried. I shut the heat off after 24 hours. I'm already in the blocking stage

image by -glhxturbo-

 

[crashtech]

If it is sanding well, you are OK. I tend to be on the safe side because of some hard to explain things that have happened to be in the past.

I'll have to refer you to Barry for specific temp recommendations. I personally think 40° is too low for any material that is in the curing stage, but that is just me. I view the heating expense as part of the cost of the job, and cheap insurance to know that my customers get a product that is properly cured.

 

[crashtech]

Crash.....why do you leave it at 60° for 7 days?

Can I spray epoxy and keep the metal 70° for 24 hours.......shut the heat down......let the shop get down to 40° for 5 days

Come back and heat the shop back to 70° And spray high build because I'm in my 7 day window??

You got me worried. I shut the heat off after 24 hours. I'm already in the blocking stage

If it is sanding well, you are OK. I tend to be on the safe side because of some hard to explain things that have happened in the past.

I'll have to refer you to Barry for specific temp recommendations. I personally think 40° is too low for any material that is in the curing stage, but that is just me. I view the heating expense as part of the cost of the job, and cheap insurance to know that my customers get a product that is properly cured.