Knot holes

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Forum topic by PapaP posted 04-19-2021 05:53 PM 272 views 0 times favorited 6 replies Add to Favorites Watch
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21 posts in 89 days

04-19-2021 05:53 PM

Good afternoon, I am in the process of finishing a cypress table top and would like to level off a couple of the knots holes before staining and putting poly. Any suggestions?

-- PapaP

6 replies so far

View Kelly's profile


3548 posts in 4025 days

#1 posted 04-19-2021 06:57 PM

More info: Are cutting the proud knots, or wanting to fill knots?

If I were bringing knot holes up to the same level as the surrounding wood, I’d seal the back side, then use epoxy to fill the void.

I like 2:1 because it flows better than many epoxies. Additionally, it has longer set time than, for example, five minute epoxies.

Keep in mind, cold epoxy does not seep and flow well. To solve that problem, keep it warm or warm it in hot water from the tap. Just wipe the bottles good so you don’t contaminate your mini-pour.

You’ll have to stay on top of the project because much of it will soak in, and it has to seep down and push the bubbles out.

You can use denatured alcohol to wipe up excess, but you may need to sand any way, so it may be best to just let it sit, since it’s better to have epoxy above the spot than to try to fill even 1/16” with poly.

Even after it looks good, come back within the set up time to see if you need to add more, or to rid the epoxy of air bubbles.

On air bubbles, I have always used a propane torch. Flashing over the pour [fast, it will burn] will pop them. Some use a mist of denatured alcohol.

To reduce the amount of air that leaches out of the wood, I always sealed the wood. That may be a good idea here too. Just flow some poly in, let it harden, then come back with the resin.

View John Smith's profile

John Smith

2925 posts in 1244 days

#2 posted 04-19-2021 09:44 PM

photos would help with the most accurate suggestions

-- there is no educational alternative to having a front row seat in the School of Hard Knocks. --

View PapaP's profile


21 posts in 89 days

#3 posted 04-20-2021 12:42 AM

I think I posted the image. This knot is 1 1/2” x 1/2” approximately.

-- PapaP

View pottz's profile


16841 posts in 2066 days

#4 posted 04-20-2021 12:45 AM

I think I posted the image. This knot is 1 1/2” x 1/2” approximately.

- PapaP

i see nothing ?

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

View Kelly's profile


3548 posts in 4025 days

#5 posted 04-20-2021 01:26 AM

None of us do (see any image). That is why I asked if it was proud or inset.

View CWWoodworking's profile


1755 posts in 1260 days

#6 posted 04-20-2021 01:41 AM

I use a decent amount of white pine. With loose knots, I squeeze glue in first and over fill with water based famowood. Sand flat. You may have to play around with the color. Occasionally, I will do a second fill.

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