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Epoxy holes in small pieces of wood: ziploc bag?

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Forum topic by coalcracker posted 08-13-2020 03:22 PM 247 views 0 times favorited 10 replies Add to Favorites Watch
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coalcracker

31 posts in 577 days


08-13-2020 03:22 PM

I’m making small wood bookends from a live-edge slab. Some of them have voids and cracks that I’d like to fill with epoxy. My past experience tells me that it will be challenging to create a sufficiently watertight tape job around the sides and bottom of these pieces to prevent epoxy leak, and I am considering other options.

Has anyone tried using a shrink wrap or ziplock bag sealed around the wood piece with a heat gun before pouring epoxy? I could easily do multiple pours if the first doesn’t do the job.

Any other ideas for flooding a small piece of wood with epoxy?

(Edit: I’d like to avoid placing the whole piece in an epoxy-filled container due to epoxy waste ($$$) and extra work of getting the hardened epoxy off)


10 replies so far

View ibewjon's profile

ibewjon

1937 posts in 3641 days


#1 posted 08-13-2020 03:45 PM

If it is small cracks you want to fill, there are syringes made to fill with glue and feed into the cracks. Or maybe I don’t understand the question.

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coalcracker

31 posts in 577 days


#2 posted 08-13-2020 03:54 PM



If it is small cracks you want to fill, there are syringes made to fill with glue and feed into the cracks. Or maybe I don t understand the question.

- ibewjon

I have no problem filling the cracks, but in the past I’ve come back in the morning to puddles of epoxy that slowly leaked out of the tiniest holes under my tape. The live edge is the problem, it’s very difficult to fully seal it even with aluminum tape.

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pottz

11216 posts in 1832 days


#3 posted 08-13-2020 03:56 PM

ive always just used tape on the bottoms and filled with no problem,on small cracks i use ca glue either clear or with some tint. maybe im not understanding what you want too.

-- working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.

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pottz

11216 posts in 1832 days


#4 posted 08-13-2020 03:59 PM


If it is small cracks you want to fill, there are syringes made to fill with glue and feed into the cracks. Or maybe I don t understand the question.

- ibewjon

I have no problem filling the cracks, but in the past I ve come back in the morning to puddles of epoxy that slowly leaked out of the tiniest holes under my tape. The live edge is the problem, it s very difficult to fully seal it even with aluminum tape.

- coalcracker


are you talking about a rough sawn surface,i plane and sand first then seal with tape and fill,no issues.

-- working with my hands is a joy,it gives me a sense of fulfillment,somthing so many seek and so few find.-SAM MALOOF.

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coalcracker

31 posts in 577 days


#5 posted 08-13-2020 04:05 PM

are you talking about a rough sawn surface,i plane and sand first then seal with tape and fill,no issues.

- pottz

Maybe just my limited experience, but when I’ve done a flood coat I got small leaks around the live edge, even after stripping the bark, sanding, and taping the s*&^ out of it.

I am working with a cookie slab, if you can picture what I mean

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coalcracker

31 posts in 577 days


#6 posted 08-13-2020 04:07 PM

Thanks for the tips so far, but any thoughts on my initial shrink wrap suggestion? Would it work?

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bondogaposis

5839 posts in 3199 days


#7 posted 08-13-2020 04:17 PM

House wrap tape is all you need.

-- Bondo Gaposis

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SMP

2447 posts in 754 days


#8 posted 08-13-2020 05:13 PM

I have in the past used MonoKote for model RC airplanes, and it works great. I used it mainly because i used to fly RC planes and always had spare monokote laying around. I would choose that over a melted ziploc.

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Rich

5868 posts in 1437 days


#9 posted 08-13-2020 05:33 PM

Add some silica thickener to the epoxy to increase its viscosity. System Three sells it, as do others.

https://www.systemthree.com/products/silica-thickener

You can also use epoxy putties like Mohawk, or other spreadable epoxies, like System Three SculpWood.

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

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wildwoodbybrianjohns

1976 posts in 395 days


#10 posted 08-13-2020 05:39 PM

Like Bodo said, I assume, Tyvek is what the epoxy pros use. Aluminum tape will work too. Plumbers putty can work for small holes.

-- Wildwood by Brian Johns: The Big Bang: Nothing - exploded into Everything. Thanks to Nothing.

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