Schu Posted October 2, 2015 Share Posted October 2, 2015 the big question of the week for me is... can MDF be adequately repaired in portions of a speaker where it would effect sound? Quote Link to comment Share on other sites More sharing options...
psg Posted October 2, 2015 Share Posted October 2, 2015 (edited) It could be fixed with bondo and re-veneered, but that would entail removing the very large side veneer as well as the easy to peel 1-inch edge. I really, really feel for you. :-( Edited October 2, 2015 by psg Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted October 2, 2015 Share Posted October 2, 2015 Find someone that fixes/restores furniture. I had to fix a leg on a formal dinning room chair that can't be replaced. It may not be cheap but, will look good and function well. They can match up wood grain and color/shade perfectly. Quote Link to comment Share on other sites More sharing options...
Wolfbane Posted October 2, 2015 Share Posted October 2, 2015 (edited) I would not use bondo. System 3 makes products that can repair and or replace anything made of wood and can be subsequently shaped or carved. Once it is dry it can be sanded, veneered, etc.. It is sold on Amazon as well as most home supply stores. It will last longer than the original wood it replaces and you can paint it, nail into it and put screws in it just like real wood. Google System 3 to see if it will bond with MDF. You can call their tech line with questions Edited October 3, 2015 by Wolfbane 1 Quote Link to comment Share on other sites More sharing options...
jason str Posted October 2, 2015 Share Posted October 2, 2015 Router out the damage and glue in wood repair pieces then re-veneer. Small section repair can be filled in with bondo after the damaged section is removed & of course re-veneered to match. Quote Link to comment Share on other sites More sharing options...
Schu Posted October 2, 2015 Author Share Posted October 2, 2015 even easier if I don't care so much about veneer? Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted October 2, 2015 Share Posted October 2, 2015 Bondo works great on MDF. It's a good base for veneer as well. 1 Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted October 2, 2015 Share Posted October 2, 2015 Be carful when sanding bondo on MDF. It's harder than the MDF and the MDF will come off faster than the bondo. 1 Quote Link to comment Share on other sites More sharing options...
jason str Posted October 2, 2015 Share Posted October 2, 2015 Be carful when sanding bondo on MDF. It's harder than the MDF and the MDF will come off faster than the bondo. Block sanding fixes that. Quote Link to comment Share on other sites More sharing options...
DizRotus Posted October 3, 2015 Share Posted October 3, 2015 Be carful when sanding bondo on MDF. It's harder than the MDF and the MDF will come off faster than the bondo. Block sanding fixes that. My neighbors won't participate. 2 Quote Link to comment Share on other sites More sharing options...
jason str Posted October 3, 2015 Share Posted October 3, 2015 Be carful when sanding bondo on MDF. It's harder than the MDF and the MDF will come off faster than the bondo. Block sanding fixes that. My neighbors won't participate. Buy more beer. 1 Quote Link to comment Share on other sites More sharing options...
muel Posted October 3, 2015 Share Posted October 3, 2015 I've used West System epoxy on lots of wood but not MDF. It is amazing how far it soaks into the wood! Wood is like a straw with this stuff. I've injected epoxy with a syringe into cracks like this until it won't fill anymore and then clamp. Syringe is trashed with one use and you have to be quick. Throw it in a metal can outside when done... the chemical reaction gets really hot and can combust. 1 Quote Link to comment Share on other sites More sharing options...
joessportster Posted October 3, 2015 Share Posted October 3, 2015 Curious how the pictured damage would affect sound ?? Other than cabinet resonance perhaps with the weaker corner ?? I took a pair of beat up Lascalas a few years ago and wrapped the cabinet with another 1/2 inch all the way around and made some solid hardwood trim for all the edges, You could pull away anything thet prevents the new panel from laying flat, glue down the new panel then fill any gaps between the panels at the edge, trim out the edges It would make for a stiffer cabinet which theoretically equals less resonance Quote Link to comment Share on other sites More sharing options...
joessportster Posted October 3, 2015 Share Posted October 3, 2015 Pic for reference 1 Quote Link to comment Share on other sites More sharing options...
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