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Apr 13, 2012, 11:57 PM
Registered User
Litchking's Avatar
Discussion

What is the critical temperature (or ambient temperature) for foam?


Hi Guys, I have a curious question....with the weather getting warmer,...what is the critical temperature for those EPP/EPO foam before they start to deform? Sometimes I tend to leave my foamie in the car...
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Apr 14, 2012, 12:23 AM
Registered User
elfwreck's Avatar
Hey now,
In summer just about anywhere in the US it can get hot enough in a car to soften the foam enough to warp or droop. Especialy if you put it in the trunk.
While driving it's not often an issue. Nor is it if you're just stopping at a shop or something. But an hour or two is about the safe maximum generally speaking.
RobII
Apr 14, 2012, 05:24 AM
Registered User
DeeBee1's Avatar
It's not just the actual plane you need to watch. Foam sticky backed tape holding servos and receivers can also come loose when the weather is very warm.
Apr 15, 2012, 10:23 PM
Fly it like you STOL it!
Endlesslag's Avatar
And hot glue will soften! I know this from experience
Apr 17, 2012, 09:46 PM
Registered User
Litchking's Avatar
Quote:
Originally Posted by Endlesslag View Post
And hot glue will soften! I know this from experience
wow...thanks for the info...will definitely keep these in mind
Apr 17, 2012, 10:05 PM
St. Louis
Foambird's Avatar

Warm Foam


Quote:
Originally Posted by Litchking View Post
Hi Guys, I have a curious question....with the weather getting warmer,...what is the critical temperature for those EPP/EPO foam before they start to deform? Sometimes I tend to leave my foamie in the car...
There isn't a crtical temp. Just realize that a foam airplane exposed to extremes of sun will warp and flex.

I set my foamies in the sun for 15 minutes or so to let them adjust. There are trim changes you will need to make depending on the weather.


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