will it work just as well as metal being welded back in this tiny holes. i am getting everyone saying that bondo will eventually break loose after a while thats why u have to have little pieces of metal welded back in there. could i not weld and put fiberglass in there instead and it hold forever and on or will it be like the bondo and fall out eventually and how eventually??? just curious i am having issues with my wing as u can see it is costing me more money than i would like to spend on a damn piece of fiberglass. anyways any help would be appreciated. thanks

Fiberglass will not bond to metal, Bondo will, Id say just bondo.. that is what it is made for.

well they have this thing bondo makes that is just like bondo and it is made by bondo but its firberglass and it says metal on it so it will worki was thinking both though

Your best bet is to get the holes welded from the inside, then use a very thin coat of good body filler(not Bondo...something like Rage Gold works very well.)

You may be able to get away with fiberglass though. Fiberglass does bond to metal very well actually. The problem is that when it is subjected to heat, fiberglass and metal don't expand at the same rates at the same temperatures, so the bond can break and crack.

I patched a couple holes with fiberglass on my brother's car, and they've held up fine for over a year. But the best way would be to have metal welded.

Whatever you choose to do, don't just fill the holes with body filler.

the main problem with the trunk is Vibration cause by heavy bass. I had to weld my holes shut.

well what about dynamat i was going to put dynamat under them on the inside to keep vibration from getting to the fiberglass

-cyb593+Oct 6, 2005 - 4:42 PM
Thats a great ideal. You should have no problems.

should i use the fiberglass and then try to put a thin layer of dynamat in between the fibergalss and the bondo would that help also??

-cyb593+Oct 6, 2005 - 9:21 PM
You wont be able to bond on the dynamat. I would just use a fiberglass based shortrand filler personally. The dynamat the bottom of your trunk. Put metal tape at the bottom of the hole, and fill from the top

cool thanks

definately will work we patched up some emblem holes and shave an antenna off of a datsun 260 and shyyt it holds up relli niiiice just bondo over to make smooth or if its small enough get the wire grill stuff for bondo patches (found in auto stores) and put under hole and bondo on top side

i used fiberglass to fill in my 3rd brake light, its held up nicely for awhile now, even with hard bass...