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Old 26th January 2014, 07:51 PM   #1
guangui is offline guangui  Puerto Rico
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Default How to seal gaps is wood?

Hi! I don't have a table saw, and I don't like doing long cuts with my circular saw because they are not the straightest. So, last time I gave the lumber store a list of cuts I wanted from a 4' x 8' panel of 1/2" MDF. Most of the cuts are straight and to the dims I gave him, except one. Because of that I have a horizontal gap between the base of the speaker enclosure I'm building, and the bottom part of the back. The gap is 4" wide by approx. 1/8" tall. The speakers will be veneered or painted, don't know yet, most probably veneered.

Here are my questions:

1. If I use veneer to cover the speaker cabinet, should I just seal the gap with silicone or should I use 2-Part epoxy? I will use an iron to apply the veneer.

2. If I paint, should I use 2-Part epoxy or wood filler? Being such a large gap I don't think wood filler will work well.

What are your recommendation?
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Old 26th January 2014, 08:08 PM   #2
tinitus is offline tinitus  Europe
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Quote:
Originally Posted by guangui View Post
What are your recommendation?
simply glue some wood, thick veneer, or something, in the place where some is missing
and then 'recut', or whatever you can manage

if already assembled, I would suggest to try and make some venner fit, to be pushed in the gap with glue
could even be small bits, one by one
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Old 26th January 2014, 08:14 PM   #3
guangui is offline guangui  Puerto Rico
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Quote:
Originally Posted by tinitus View Post
simply glue some wood, thick veneer, or something, in the place where some is missing
and then 'recut', or whatever you can manage

if already assembled, I would suggest to try and make some venner fit, to be pushed in the gap with glue
could even be small bits, one by one
Being a begginer at this I had already assembled, but I believe I can cut a piece with my miter saw and make it fit...Thanks!
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Old 26th January 2014, 08:24 PM   #4
tinitus is offline tinitus  Europe
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not sure how much is missing
just remember such pieces of wood sometimes breaks easily

btw, a sharp knife can be a very good tool
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Old 26th January 2014, 08:28 PM   #5
evanc is online now evanc  United States
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Bondo....
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Old 27th January 2014, 04:52 AM   #6
guangui is offline guangui  Puerto Rico
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Quote:
Originally Posted by tinitus View Post


not sure how much is missing
just remember such pieces of wood sometimes breaks easily

btw, a sharp knife can be a very good tool
Thanks! I measured the gap, and it was 1/16" (2 mm) on one end and 1/8" (3 mm) on the other end. So, I cut a piece of 1/2" thick (13 mm) panel with those dims x 4" long (102 mm). Then I "painted" the cavity and piece of wood with glue and inserted it, it was a perfect fit and I had to tap it with a plastic mallet for it to go in. Problem solved...

Quote:
Originally Posted by evanc View Post
Bondo....
Knew this solution, and totally forgot about it. I didn't feel like going to Home Depot and paying $25.00 for Bondo, when I can buy it at almost half price from the local auto bodyshop supplies store. Hopefully I won't forget next time...Thanks!
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Old 27th January 2014, 09:32 AM   #7
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Glue and sawdust mixed together and pushed into the smaller cracks works well also, much cheaper than Bondo!!

jer
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Old 27th January 2014, 10:47 AM   #8
guangui is offline guangui  Puerto Rico
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Originally Posted by geraldfryjr View Post
Glue and sawdust mixed together and pushed into the smaller cracks works well also, much cheaper than Bondo!!

jer
Great solution...I have plenty of that, as I collect it and store in a sealed contai er, to be used for household chemicals and garage oil spills...Homemade particle board.
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Old 27th January 2014, 04:42 PM   #9
chrisb is offline chrisb  Canada
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Originally Posted by evanc View Post
Bondo....

beat me to it
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Old 27th January 2014, 11:50 PM   #10
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QuikWood® - Epoxies and Adhesives - Polymerics Systems, Inc.

I really like the stuff
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