crushed glass bottle as creative wood filler?

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Blog entry by Richard posted 05-17-2010 03:58 AM 9810 reads 0 times favorited 7 comments Add to Favorites Watch

I ‘ve been working with some blue-stained lodge pole pine and I have a few knots with cracks and voids in them. I am thinking of filling the large cracks with some bright blue glass from an old bottle. I plan on crushing the glass to a fine powder (I don’t know how fine to crush), also what kind of adhesive should I use to attach my “glass putty” to my project?

Thanks for your suggestions

-- Richard Boise, Idaho

7 comments so far

View a1Jim's profile


117803 posts in 4145 days

#1 posted 05-17-2010 04:03 AM

There have been other folks that have used glass and stone as inlay and it looks great. If I remember correctly it was about the size of the rock that goes on the bottom of aquarium but any size you think will work I’m sure will work.

View longgone's profile


5688 posts in 3876 days

#2 posted 05-17-2010 06:20 AM

I was in some craft shops and galleries this past week while in Fredericksburg and there were numerous wood pieces that had finely ground tourquoise powder used to inlay and fill cracks…many created cracks I assume.
They looked very nice when used with the correct clear glue.

View dlmckirdy's profile


199 posts in 3701 days

#3 posted 05-17-2010 06:44 AM

I would suggest either clear or translucent black (or dark blue) colored slow cured epoxy. Make sure the wood in the crack has enough amplitude (roughness) to lock the epoxy in place so that it cannot shrink minutely and fall out. I agree with Jim that about 1/8 inch would be a good size for the glass. You may want to consider a bit of smaller glass as a filler (think of concrete or asphalt, which has graded sand of several sizes mixed with the gravel. Of course, your filler will look thousands of times better).

-- Doug, Bakersfield, CA - I measured twice, cut it twice, and it is still too short!

View whitedog's profile


652 posts in 4025 days

#4 posted 05-17-2010 07:48 AM

it will work fine… I think it looks better to very the size of the glass and maybe add a small amount of other colored glass for a little contrast. I use CA glue ( Super Glue ) depending on how large the cracks are, you can use thick or thin glue. Put the larger pieces in first then come back and fill with the finer glass , sand it and you are done.

-- Paul , Calfornia

View StephenSC's profile


28 posts in 3684 days

#5 posted 05-17-2010 03:18 PM

I have used the grinding dust from cutting keys at Lowes for filling cracks. I fill the crack with epoxy and then push the brass in so it is on top and I already have good contact between the epoxy and wood.

-- Stephen, Riverside. If it's worth building, it's worth making it real heavy.

View RichardH's profile


295 posts in 3570 days

#6 posted 05-17-2010 11:18 PM

I agree with dlmckirdy. Slow cure epoxy should do the trick. One thing to note is to use caution around glass powder if you go all the way to fairly fine dust stage…it’s pretty nasty stuff.

I like your idea – should be interesting to see how it turns out.

-- "It's supposed to be hard. If it wasn't hard, everyone would do it...It's the hard that makes it great."

View DocSavage45's profile


8874 posts in 3410 days

#7 posted 08-12-2011 04:55 PM

When doing your project, have you any of the woods you are using that have aged a few years time? It will give you a clue about how the piece will look down the road? I have thought that I might useriver stone, or unique pieces from the banks imbedded. Will use the slow cured epoxy route. You definitely think “outta the box” LOL

-- Cau Haus Designs, Thomas J. Tieffenbacher

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