Author Topic: stinky micarta?  (Read 341 times)

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Offline hayshaker

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stinky micarta?
« on: March 13, 2017, 10:30:17 AM »
what could have one wrong?
i made a couple of 5xs10 micarta sheets and after a week they still smell of
epoxy yet thier hard as a rock. what could have happend.
btw the resin and hardener i used is 3m bondo brand.
i'm saving the other stuff west systems for future projects.
any input on this is greatly apreciated.  also if this helps  did
keep the material at 75 to 100' degrees dring the curing process.

Offline lgm

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Re: stinky micarta?
« Reply #1 on: March 13, 2017, 10:37:32 AM »
Not sure, I might put outside to air out. Have you cut it yet?
Is it hard all the way through?
What a great day to be outside.

Offline hayshaker

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Re: stinky micarta?
« Reply #2 on: March 13, 2017, 12:06:58 PM »
yes it is hard thruout and the resin to hardener ratio was correct as well.
could a temperture fluctuation cause this?

Offline Gebert

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Re: stinky micarta?
« Reply #3 on: March 13, 2017, 02:47:52 PM »
takes a long time for the smell to go away.
different brands different times before it goes away.

Offline crashdive123

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Re: stinky micarta?
« Reply #4 on: March 13, 2017, 06:10:58 PM »
I use that (and other brands) resin.  The smell will pass.

Offline hayshaker

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Re: stinky micarta?
« Reply #5 on: March 14, 2017, 04:35:56 PM »
thanks all i just hope the smell dissipates before too long i'm antsy,
anyhow i just bought some material at the fabric wharehouse.
denim ,duck cloth and burlap. the colors are great.
today i spent some time cutting up material for future micarta slabs.
i reconfigured a old fridge to ue as a curing place for the micarta slabs.
i need a bigger shop. yeah that's the ticket.

Offline Unknown

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Re: stinky micarta?
« Reply #6 on: March 14, 2017, 06:30:52 PM »
I remember you talking about the cold, so my guess is that's why you made a heated cabinet.

Which gave rise to a question; what temp approximately is your epoxy when mixed, before it does in the hot?

If there is a significant difference, it sounds plausible that there could be more potential for unusual, unpredictable problems.

Offline hayshaker

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Re: stinky micarta?
« Reply #7 on: March 14, 2017, 06:50:47 PM »
thanks UNK. when i made the 3,batches in question the shop was between 80
and 100'degrees, then it went into the minivan with a oil heater inside.
lowest temp reading was i think 65' degrees. but this was many hours after the cdure time
of 2hrs, since then i've built the fridge heater which is not fully done at this point.
i'm still waiting for things to warm up.

Offline Unknown

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Re: stinky micarta?
« Reply #8 on: March 14, 2017, 07:34:21 PM »
Sounds good.

If you were mixing at the low end of the working temp and then putting in the oven that might cause weird things, maybe. But mixing warm, when it's flowing good sounds ideal. Going from warm to cool doesn't sound/seem as potentially bad

Offline madmax

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Re: stinky micarta?
« Reply #9 on: March 18, 2017, 03:16:01 PM »
The smell will pass.

I keep telling people that but it doesn't seem to make a difference in the elevator.
"Life should not be a journey to the grave with the intention of arriving pretty with a well preserved body, but rather to skid in sideways in a cloud of smoke, thouroughly used up, totally worn out, and loudly proclaiming, Wow! What a ride!" 
Hunter S, Thompson