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DP&MD11
06-12-2005, 03:49 PM
i am pretty much done with my fiberglassing and i ran outta resin. But i got a alot of bondo and extra matte from my resining process. Is there anyway i can combine the two? Also can i glass down over bondo once i get more resin? Thanx a lot for the help :)

azbass
06-12-2005, 03:52 PM
ever hear of Kitty Hair?

DP&MD11
06-12-2005, 03:53 PM
nope im sorry. What is that though?

azbass
06-12-2005, 03:54 PM
its like a bondo, with chopped up mat, mix. you can find it at walmart, HD. etc. good stuff to use.

bcarpenterfhl
06-12-2005, 03:54 PM
nope im sorry. What is that though?

bondo + fiberglass.

i've never heard of mixing it yourself though.

DP&MD11
06-12-2005, 04:06 PM
so theres no way i can use the two rite now? Oh and my 2nd question can u glass over dried bondo?

req
06-12-2005, 04:37 PM
bondo+fiberglass = not good.


the fiberglass needs to soak up the resin (they use epoxy-ish stuff in bondo) - but since the bondo is so thick, the glass wont absorb it, and it wont work well.


but try it if you must.

resin = teh best option period.

Acidburn
06-12-2005, 05:36 PM
i know of a guy that made door pods out of just bondo and fiberglass... they fell apart after about a week

DP&MD11
06-12-2005, 05:43 PM
can i glass on top of dried bondo? Or must i prep the bondo before hand?

azbass
06-12-2005, 05:47 PM
iv never had to glass over bondo, but it should stick. try it out on a small pice of card board,

DP&MD11
06-12-2005, 06:04 PM
okay thanks for the info everyone i really do apperciate it.

bcarpenterfhl
06-12-2005, 08:50 PM
i've glassed over bondo, no problem at all.

req
06-12-2005, 08:59 PM
yep go for it - just dont use bondo as resin :)

DP&MD11
06-12-2005, 09:02 PM
gotcha and again thanks everyone it was a great help!!!!

DP&MD11
06-13-2005, 12:05 AM
its like a bondo, with chopped up mat, mix. you can find it at walmart, HD. etc. good stuff to use.
Is this stuff strong when it dries like resin would? I just need to strengthen my mold and i wondering how should i do that? Or should i just glass more? The curves of the mold are okay i guess but the flat areas have some flex to them.

bcarpenterfhl
06-13-2005, 12:09 AM
its strong. its most often used in filling larger dents or holes. i've never compared it to the strength of regular fiberglass and resin.

req
06-13-2005, 12:10 AM
maybe just take some 1\2" MDF and cut it to the appropriate size, drench it in resin, place it on the flat spot, then cover the back with a layer of fiberglass.

no more flexing :)

got any pics of what you mean thou?

bcarpenterfhl
06-13-2005, 12:11 AM
x2 for pics

DP&MD11
06-13-2005, 08:05 PM
Yeah here are some pics of what im doing. It is just a base mold rite now.

This picture is when it was in the car. the lighter parts are the more flexible parts of the mold. the transmission hump is fine im not too worried about that.
http://img219.echo.cx/my.php?image=fiberglassing0047ks.jpg

This picture is after more glassing. Every curve that you see is stiff like a mutha but the flat areas are still flexing.
http://img280.echo.cx/my.php?image=fiberglassing0059jb.jpg

I was really bored and has like a whole can of bondo and no more resin so i thought(and read) that bondo makes it stronger. So i slapped it on and made a lot of high spots with the bondo on the flat areas. I know that glass is stronger in curves so i thought bondo would make it stronger while creating curves when i get more resin to put on. Sorry for the mess.
http://img280.echo.cx/my.php?image=fiberglassing0119zx.jpg

DP&MD11
06-14-2005, 12:18 AM
any help req?bcarpenter?

DP&MD11
06-14-2005, 08:22 PM
any ideas on how to strengthen the flat areas of this mold?

bcarpenterfhl
06-15-2005, 06:23 PM
bondo shouldnt be relied on for structural integrity, unless its kitty hair of courst. i noticed you are using fiberglass cloth. though its a good choice and much easier to use, it is not nearly as strong as fiberglass matte. when using cloth as an alternative to matte, i like to use about 50% more cloth than i would use otherwise with matte. try adding a few more layers of cloth. then test the strength. if you feel that your amount of layers is already sufficient, then, like previously stated, reinforce the flat parts with 1/2 in. MDF. hope this helps.