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Removing Bubbles in Epoxy

Epoxy Bubbles Heat Removing

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21 replies to this topic

#16 Meeshka

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Posted 20 December 2016 - 01:37 PM

My technique is very similar to hatchet jack, slowly mixing on tinfoil.  I don't normally add heat, but if I do I have used a hair blow dryer on the lowest setting.  I like his straw approach, I think you will have more control over the material



#17 Dave G.

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Posted 21 December 2016 - 06:39 AM

Have you tried a hair dryer while you continuously rotate the fly with fresh new epoxy on it ( before it begins to kick) ? In rod building we use open flame on a rotating blank and it pops any bubbles that may have formed but obviously an open flame would be problematic on a fly. Just a thought.


John 7:38 ESV  is about "Rivers of Living Water"


#18 Bimini15

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Posted 21 December 2016 - 02:42 PM

I do not know...
This maybe sacrilegious, but I think the bubbles add a certain je ne sais quois.
Bimini15

#19 Flat Rock native

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Posted 21 December 2016 - 04:50 PM

I do not know...
This maybe sacrilegious, but I think the bubbles add a certain je ne sais quois.



I think so too, sure did nothing to hurt any of the 3 samples in OP...

FYI, All the French I know I learned in Sonic drive-in Ads and Stuart Woods' fictions
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#20 Dave G.

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Posted 22 December 2016 - 05:37 AM

The bubbles may be nice, they may offer aesthetic appeal even, but the OP asked how to get rid of them, not embrace them. A few ways have been offered but possibly the easiest is to just spend $6 on a new batch of epoxy. Save the bubbly stuff for where it won't show, like under a real seat for instance ( I'm still thinking rod building lol).


John 7:38 ESV  is about "Rivers of Living Water"


#21 Carl Z

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Posted 01 January 2017 - 11:52 PM

Have you tried gently heating the epoxy (is it the resin or the hardener that has the bubbles, I glossed over that in the original post)?

 

I start with hot tap water and drop the bottle in.   If that doesn't help, I bring water up to boiling and take it off and then drop the epoxy bottle in.  Some sloooow rolling of the bottle while the epoxy is warm may help.  You are trying to reduce the viscosity of the material so the bubbles rise to the surface.

 

The laying out the epoxy on aluminum foil and using a slight heat source below it will also help (as long as the heat source is not hot enough to form bubbles).  spreading the epoxy out reduces the distance a bubble has to rise before it pops.

 

Thinning the epoxy also helps, but it completely changes the character of the epoxy when it goes on.

 

Good luck.



#22 Stippled Popper

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Posted 03 January 2017 - 02:14 PM

With regard to the comments about warming epoxy to remove bubbles, it is also going

increase the speed of curing thus reducing the working time you have for your batch of epoxy.







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