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bonding FG to MDF, resin or glue?


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danieljaluise 
Copper - Posts: 125
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Joined: January 19, 2003
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Posted: May 20, 2005 at 12:07 PM / IP Logged  
what is better to bond/seal a fiberglass mold to a piece of MDF? I thought that I would use liquid nails between the two surfaces, then press them together and use fiberglass on the outside seam. Is this a good idea, or should just stick strictly to fiberglass?
danieljaluise 
Copper - Posts: 125
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Posted: May 20, 2005 at 3:16 PM / IP Logged  
please someone reply because I'm doing this tonight and I dont want to pick the wrong option and F up(again).! haha
DukeDuke 
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Posted: May 20, 2005 at 3:43 PM / IP Logged  
IMO I would just resin the MDF and then put the FG piece on and if you can wrap some glass around it to give it a for sure hold, glue might work, but you would have to have a specal glue, I dont think wood glue would do very well... good luck man, and send us some pics of... whatever you are doing.
Duke Duke
danieljaluise 
Copper - Posts: 125
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Posted: May 20, 2005 at 4:54 PM / IP Logged  
thanks duke. Its a spare tire enclosure by the way.
beatjunkie 
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Posted: May 22, 2005 at 9:25 PM / IP Logged  
no! the proper this to use is bondo...trust me
oonikfraleyoo 
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Posted: May 23, 2005 at 9:22 AM / IP Logged  
Do What?? DO NOT USE BONDO!! Bondo is in no way the right thing to use. Dude, what are you talking about?
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Mvap 
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Posted: May 25, 2005 at 2:09 AM / IP Logged  

oonikfraleyoo

Do you have a jeep cherokee truck????

Is so FG projects have you done because I have on and need Ideas.

I love Car Audio!
davedyer79 
Copper - Posts: 178
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Joined: February 18, 2004
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Posted: May 25, 2005 at 8:27 AM / IP Logged  
Yes, please don't use bondo, it will crack out within the first minutes of hitting.  Bondo is a body filler, applied to smooth bumpy, crinkled surfaces, and should only be applied in very thin coats, especially on a sub box.  Use resin.  Soak it to the MDF and to the mold, and if you can add a layer or 2 or mat in the seam, do that.  Good luck.
davedyer79
abovestock 
Copper - Posts: 247
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Posted: June 17, 2005 at 3:27 AM / IP Logged  
Super glue it places that it touches to hold it, then resin and thin mat such as 1/2 ounce or even 3/4.post some pics and good luck.
us_test 
Copper - Posts: 200
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Joined: May 21, 2005
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Posted: June 17, 2005 at 8:10 AM / IP Logged  

Hit it with the MM (MiracleMix) (I just did this las night).  1 to 1 parts bondo and resin mix + small amout on hardener that comes with the bondo.  Cures in about 3 hours and it holds like hell.  Finish is glass smooth and it self levels when you paint (the mix you make will be like mustard in consitency).  I would highly recommend this as a finishing coat for ANY FG PROJECT you will save a ton of time in sanding (you'll do maybe 10% of the sanding it would take if you did not use it).

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