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View Full Version : Need some Fiberglass help...pics inside



bumpn_gt
06-15-2005, 10:06 PM
I started fiberglassing the trunk of my caddy and this is the first time ever using fiberglass. I am running 2 Digital Designs 9515's with a Planet Audio 2500d on each......

my question is, how many layers of mat and resin do I put on before I start the fleece?? I have used a little over 3 gallons of resin so far......

bumpn_gt
06-15-2005, 10:07 PM
hit me up on AOL under bumpngt if you can help me out yet tonight in the next hour or so.......otherwise just post up

bcarpenterfhl
06-15-2005, 10:12 PM
3 gallons? holy ****! how many layers do you have on there?

req
06-15-2005, 10:38 PM
yea dude. that might be enough :p:

how many layers is it?

you would have been better off just laying down 3\4" MDF for the flat spots, and then glassing them together on the corners tho...

bumpn_gt
06-15-2005, 10:44 PM
I can still lay mdf......I have about 6 layers


I was just worried about it shattering with all the pressure the subs produce. I had a 9 cube wood box in there, but I wanted something bigger

bcarpenterfhl
06-15-2005, 10:48 PM
if thats really only 6 layers (with 3 entire gallons?), then you should probably still put mdf on the flat parts. are you sure you used gallons and not quarts? otherwise, 6 layers is about fine.

BeanII
06-15-2005, 10:49 PM
six layers? you should be fine. Remember it'll have the support of the car behind it.

If it's strong enough for you to stand on (which it should be by now) it'll be fine.

UndercoverPunk
06-15-2005, 10:59 PM
I'd do atleast 10 layers myself, but I like making **** sure things don't flex, I can stand on the molds for my door pods... **** I can jump on them and heel stomp them and their fine.

Overkill=my friend...

If you're worried about the large flat spots, soak some rope in resin and put it in there, that's what Ramos used to always reccomend...

InhumanAcura
06-15-2005, 11:01 PM
6 layers is still gonna flex...any thing that is backed by something solid anyway. build as much as possible out of MDF.

being your as far as you are, Id slap some resin down on the mold then lay some fleece over it and soak it for some extra stregnth...then go from there. worked for my previous box.

bumpn_gt
06-15-2005, 11:05 PM
so lay fleece on the interior of the mold and soak that? I have plenty of mdf laying around that I can throw that in also.

I'm positive I used gallons.....I used as much as I could each time I laid a layer down.....have gone through quite a lot of matting also......I don't trust standing on it yet....granted I am 300+ lbs also.....

bcarpenterfhl
06-15-2005, 11:06 PM
whats the glass' density?

packerfan
06-15-2005, 11:17 PM
so lay fleece on the interior of the mold and soak that? I have plenty of mdf laying around that I can throw that in also.

I'm positive I used gallons.....I used as much as I could each time I laid a layer down.....have gone through quite a lot of matting also......I don't trust standing on it yet....granted I am 300+ lbs also.....

When your done, we can both test it out by standing on it....550lbs+ should test it :naughty: Lookin good otherwise, id lay MDF down in any flat spots possible. Fiberglass is only realy strong in curvy areas and fairly weak on just flat spots.

InhumanAcura
06-15-2005, 11:21 PM
so lay fleece on the interior of the mold and soak that? I have plenty of mdf laying around that I can throw that in also.

exactly, with the amount of surface area your have, you might want to try something denser like carpet you cover a box with etc...

more mdf than f/g...
http://memimage.cardomain.net/member_images/11/web/635000-635999/635350_99_full.jpg

bumpn_gt
06-15-2005, 11:21 PM
its about .25" across the entire mold........I had some metal screen laying around so I threw that in there also.....cut it into strips and resin'd it in there.......the only spots that worry me are the big flat spots....I will just mdf those parts.....its about 20-25lbs now

packerfan
06-15-2005, 11:24 PM
Oh hey colin, hit me up on AOL @ berettasql...im gonna be needing some amps soon and still wondering if you can get those PA's for a decent price.

APitBullT
06-16-2005, 08:39 AM
sorry for thread jacking, but inhuman that video is :laugh: dumb ***** deserve to get hit :spank:

APitBullT
06-16-2005, 08:41 AM
thats one big *** glass box tho

TPABlazer
06-16-2005, 08:43 AM
its about .25" across the entire mold........I had some metal screen laying around so I threw that in there also.....cut it into strips and resin'd it in there.......the only spots that worry me are the big flat spots....I will just mdf those parts.....its about 20-25lbs now

Its kinda hard to just "mdf" something, especially fiberglass after you started. If anythign cut out the center flat section, and trim the sides around, and re glass it to the MDF.

APitBullT
06-16-2005, 08:51 AM
is itr hard to glass over mdf?

bumpn_gt
06-16-2005, 09:00 AM
I think I will try the rope & fleece trick first before I go cutting anything out.......

anyone else have suggestions?

TPABlazer
06-16-2005, 09:48 AM
is itr hard to glass over mdf?

as a layer yes... as a base no.

bumpn_gt
06-16-2005, 01:43 PM
so for the fleece, do I lay it out flat, or do I make knots and bunch it up and stuff?