#1625868 - 04/06/09 07:16 PM
What is a good filler?
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Stangeriffic2002
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I need to create a couple "wedges" of filler approximately 2" x 4" and at their thickest maybe 3/4"
Something sandable, and something I can rely on not to crack/shrink/expand down the road. It won't be supporting any weight or be exposed to the elements. It will be used to build up some depth/thickness on a couple small pieces of 1/8" birch plywood so it will need to have a good strong bond to that. So far the only thing I've come across is wood filler, some kinda plastic epoxy/resin, or Bondo which I don't think will do well in an application as thick as 3/4"
What are your suggestions?
Thanks...
Edited by Stangeriffic2002 (04/06/09 07:16 PM)
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#1625954 - 04/06/09 11:46 PM
Re: What is a good filler?
[Re: Stangeriffic2002]
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KLCTexas
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I would definitley say you need something other than bondo, preferably some fiberglass infused filler, like rage gold. When I did my sail panel pods for my tweeters, I used only bondo, and the reviews said it was obvious that I used bondo instead of something with some fiberglass in it (lots of bumps). Next time, I will take the time to use something with some fiberglass in it to make it blend better.
But for that thick, you could almost make a filler piece to fit in that gap, and blend it with some fiberglass reinforced filler, etc.
Edited by KickerLovinCorolla (04/06/09 11:49 PM)
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#1625982 - 04/07/09 04:58 AM
Re: What is a good filler?
[Re: KLCTexas]
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Stangeriffic2002
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I measured today. It will be 5/8" thick at the thickest point.
I need to make a trip to the wood shop today and grab some stuff so I'll see if maybe I can find something there to stick in the gap and use less filler.
Any other suggestions are welcome too!
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#1626005 - 04/07/09 07:01 AM
Re: What is a good filler?
[Re: KLCTexas]
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93_chevy
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I would definitley say you need something other than bondo, preferably some fiberglass infused filler, like rage gold. When I did my sail panel pods for my tweeters, I used only bondo, and the reviews said it was obvious that I used bondo instead of something with some fiberglass in it (lots of bumps). Next time, I will take the time to use something with some fiberglass in it to make it blend better.
But for that thick, you could almost make a filler piece to fit in that gap, and blend it with some fiberglass reinforced filler, etc.
rage gold is not a fiberglass reinforced filler...
you need a short strand reinforced filler like duraglas,dynaglass,marglas, etc...none of that stuff is very sandable, so you would have to come back with a standard lightweight filler to finish it off.
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#1626105 - 04/07/09 10:31 AM
Re: What is a good filler?
[Re: 93_chevy]
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Stangeriffic2002
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Thanks for the replies guys. What if I were to fill the majority of the space with a heavy platic epoxy and then finish it off with some wood filler/bondo/etc?
Where can I investigate duraglass et all?
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#1626147 - 04/07/09 11:54 AM
Re: What is a good filler?
[Re: Stangeriffic2002]
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SuperJay
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if you mean filler for resin then baby powder is a common choice. I like to use Qcell. it's used for repairing surfboards, when they need to be light, but strong.
http://www.foamez.com/qcell-filler-p-325.html
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#1626721 - 04/08/09 03:48 PM
Re: What is a good filler?
[Re: SuperJay]
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Stangeriffic2002
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Cool. I actually decided I don't need any but that will surely come in handy in the future. Thanks!
So what do you do with that stuff, just mix it w/ like fiberglass resin which thickens it up and then add a little hardener to solidify it?
Edited by Stangeriffic2002 (04/08/09 03:49 PM)
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#1627159 - 04/09/09 11:10 AM
Re: What is a good filler?
[Re: Stangeriffic2002]
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93_chevy
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Cool. I actually decided I don't need any but that will surely come in handy in the future. Thanks!
So what do you do with that stuff, just mix it w/ like fiberglass resin which thickens it up and then add a little hardener to solidify it?
yes.
if you want it to be extra strong you can add in some milled fiberglass fibers and make you a homemade kitty hair style filler.
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#1627445 - 04/09/09 07:31 PM
Re: What is a good filler?
[Re: 93_chevy]
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Stangeriffic2002
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Sweet. Bookmarked this page in case I ever need filler in the future. Thanks all!
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#1629308 - 04/14/09 07:22 AM
Re: What is a good filler?
[Re: Stangeriffic2002]
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SQLAltima
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liquid plastic. It is flexible enough that with movement it won't crack and it is easily sandable.
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