LumberJocks

Hardened Epoxy in Flood Coat

  • Advertise with us

« back to Finishing forum

Forum topic by DonovanL posted 07-12-2018 07:16 PM 631 views 0 times favorited 12 replies Add to Favorites Watch
View DonovanL's profile

DonovanL

4 posts in 155 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

View diverlloyd's profile

diverlloyd

3234 posts in 2059 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.

View JohnMcClure's profile

JohnMcClure

327 posts in 842 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

View ColonelTravis's profile

ColonelTravis

1932 posts in 2095 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

Rich

3882 posts in 791 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

View woodbutcherbynight's profile

woodbutcherbynight

5702 posts in 2610 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 154 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.

View Nubsnstubs's profile

Nubsnstubs

1422 posts in 1931 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

4 posts in 155 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.

View jbay's profile

jbay

2879 posts in 1101 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

83 posts in 445 days


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

jbay, don’t re-post the spam links!

View Rich's profile

Rich

3882 posts in 791 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

jbay

2879 posts in 1101 days


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



jbay, don t re-post the spam links!

- PCDub

Thank You, Forum Policeman

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com