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I had friends who used to race RC boats, some of these about five feet long. It was a requirement they have floatation in them and a popular method was to set it pointy end down and pour in two part foam. Some race days were over 100 degrees out plus heating from the sun and it never failed you would hear a loud bang when a deck would break the epoxy bonding and pop off.
Like the universe, it never seems to stop expanding.
I’d only use it for temporary molds or in a fairly thin layer once sanded to final size.
On Jun 20, 2020, at 12:52 PM, Bulent Aliev <bulent.enginegear@...> wrote:
I the 80’s used to live on my sailboat on Lake Ontario (Toronto)in the winter too.
One day I got the idea of improving the insulation of my built in top loader fridge.
So, I poured two parts foam around it, and it came out great.
Until one day I opened the cabinet next and below the fridge. All my pots and pans were one solid block. The foam had migrated Thru a gap while still liquid and expanded foaming my pots.
Had to use saw and knife to get them all out.....
I use pour foam without reservation. You have to know what applications are suitable for it.
You are absolutely right. I would not use it on my worst enemy’s plane😂.
I have all the experience with it. It was all bad.
I've read many times cautions against using pour foam for anything that matters. A couple of days ago, I walked past a hangar with a canard that used pour foam for its ailerons. The ailerons were clearly, obviously, blind guy on the moon can see it bulged on the tops and bottoms.
That is all.