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Hardened Epoxy in Flood Coat

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Forum topic by DonovanL posted 07-12-2018 07:16 PM 547 views 0 times favorited 12 replies Add to Favorites Watch
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DonovanL

2 posts in 73 days


07-12-2018 07:16 PM

Topic tags/keywords: ecopoxy finishing clear coat flood coat seal coat wood beginner

I’m a beginner here, struggling to learn to use epoxy. I’ve been attempting to add a clear coat of epoxy to a couple pieces, but every time I get hundreds of whatblooks like tiny bubbles but i believe to be tiny hardened areas of epoxy within the epoxy.
I’m using ecopoxy liquid plastic 2:1. Temperature in my garage ranges anywhere from 72- 84 degrees, depending on outside temps.

Initially I thought maybe my container wasn’t clean but using a new container didn’t help. Then I thought maybe it was the foam brush, so I switched to a squeegee. Then I tried stirring gently to avoid as much exposure to air. I’ve also tried thinner layers, thicker layers, etc.

Any help would be very much appreciated. Epoxy (especially this kind) isn’t cheap!


12 replies so far

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diverlloyd

3022 posts in 1977 days


#1 posted 07-12-2018 07:29 PM

Those are bubbles and you would use a heat gun or torch to get them to go away while the epoxy is still a liquid.

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JohnMcClure

233 posts in 760 days


#2 posted 07-12-2018 07:50 PM

It’s important to do a good seal coat before the flood coat. Otherwise bubbles will come up from the air trapped in pores of the wood. That may be what happened in your case.
A heat gun or torch is absolutely indespensible for the flood coat! I remember after my flood coat pour, I just hovered over the project moving a heat gun back and forth forever, zapping bubbles as they appeared.
(A better seal coat would have minimized the need for that, but not eliminated it).

-- I'd rather be a hammer than a nail

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ColonelTravis

1877 posts in 2014 days


#3 posted 07-12-2018 08:06 PM

Yes, yes, yes. What John and diverlloyd said. Even if you’re just filling in small gaps. I don’t think bubbles are avoidable, period, when you’re using epoxy. You need heat to make sure they don’t mess it all up.

View Rich's profile (online now)

Rich

3547 posts in 709 days


#4 posted 07-12-2018 09:00 PM

Another source for bubbles in epoxy is the act of stirring it when you mix it. You can eliminate some of that with a vacuum. I have a commercial chamber vacuum for food, but even a Food Saver with one of their vacuum canisters will help pull the bubbles to the surface. Just place your mixing cup in there and pull its maximum vacuum, wait 20 or 30 seconds and release the vacuum.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

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woodbutcherbynight

5545 posts in 2528 days


#5 posted 07-13-2018 03:50 AM



Another source for bubbles in epoxy is the act of stirring it when you mix it. You can eliminate some of that with a vacuum. I have a commercial chamber vacuum for food, but even a Food Saver with one of their vacuum canisters will help pull the bubbles to the surface. Just place your mixing cup in there and pull its maximum vacuum, wait 20 or 30 seconds and release the vacuum.

- Rich

DO NOT use a blender!!! Friend of mine thought this would be the best way to mix. Have no pictures of the disaster but he is still mad at me for laughing about it.

LOL

-- Live to tell the stories, they sound better that way.

View jpinto's profile

jpinto

2 posts in 72 days


#6 posted 07-13-2018 06:44 AM

Initially you used container and after that you used a new container and you did not get help i think you did not mix the liquid properly. And second think is, which types of Applicator you are using. You should try right wood finish applicator.May you succeed.

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Nubsnstubs

1368 posts in 1850 days


#7 posted 07-13-2018 01:24 PM

Moisture content is a big factor in some epoxies having bubbles when cured. ............. Jerry (in Tucson)

-- Jerry (in Tucson) www.woodturnerstools.com

View DonovanL's profile

DonovanL

2 posts in 73 days


#8 posted 07-13-2018 10:19 PM

Turns out a heat gun was all I needed! I thought I was getting them by using my lungs but I was wrong. Thanks for all of the feedback! What I spent hours and days and weeks trying to figure out, you guys helped me solve in a matter of minutes.

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jbay

2601 posts in 1019 days


#9 posted 07-14-2018 02:10 AM



This is the quickest, easiest and smartest way to build the project you desire.

https://tinyurl.com/y8gkg6vz

- kjalal


Teds plans..don’t open

View PCDub's profile

PCDub

69 posts in 364 days


#10 posted 07-14-2018 02:46 AM

jbay, don’t re-post the spam links!

View Rich's profile (online now)

Rich

3547 posts in 709 days


#11 posted 07-14-2018 03:27 AM


jbay, don t re-post the spam links!

- PCDub

Don’t tell a master craftsman what to do. So now there are two links instead of one… BFD.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

View jbay's profile (online now)

jbay

2601 posts in 1019 days


#12 posted 07-14-2018 03:51 AM



jbay, don t re-post the spam links!

- PCDub

Thank You, Forum Policeman

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