custom fiberglass

[dean_harryman]

I am new to the fiber glass world....but I have done some work on a bear for an auction......we used that foam you squirt in your walls and I cut and shaped the foam then someone coated it in fiber glass...I was wondering if this is a technique i can use to build a air dam and rear fin.....anything will help at this point....THANKS

[tom'72]

Yes, that method is possible (hard to make it symmetrical but possible), make sure you use poly eurethane and not some foam that reacts whit the glass fiber and melts.

[dean_harryman]

so if I where to make a front air dam...I would just lay thefierglass over the foam....then could I remove most of the foam from the back and lay fiberglass on the inide too or just leve it and fiberglass with the foam inside??? would the foam add any strength??

[rustbucket]

The foam really wouldn't add anything in my opinion. If you use a releasing agent on the surface of the foam, the fiberglass won't stick to the foam, but will retain the shape.

[dean_harryman]

thanks for all of your replys...I think I am gonna try some fiberglass....soon....and I may try to build my own air dam....if someone could give me a link to where I can get materials reletivly inexpensively I would appreciate it

[tom'72]

to make things like spoilers on a car MDF wood is also used to create the shape, release agent on the finished piece of MDF and the fiberglass over that.

[dean_harryman]

heres what I am going to do...i am going to measure height lingth and width of what i want to build....then I am going to make a wooden box at those dimensions....then i am going to poar expanding foam into the box and wait 24 hours....then I am going to dissasemble the box and have myself a peice of rigid foam roughly the shape I want...then I am going to carve the foam to make it look like a front end in a bodykit....then I am going to sand and refine the shape....then put my stock bumper mounts on the foam...cover it in a bunch of layers of glass....then sand the glass smooth....and then primer the glass with primer black( just like my car) and then install.....does this sound like it would work???

[hybrid_john]

hey man...sound pretty good. i think it shold work...do you have a place to get supplies? If not here (http://www.shopmaninc.com/) , this might help. They have everything you need, including the urethane foam, and its fairly inexpensive...and if you keep it fiberglass you shouldnt have any problems with your plan....
Good Luck....just make sure you get it down right the first couple times...it can get kinda pricey if your not easily satisfied!

let us know how it turns out for you!

[volkdent]

Try TAP plastics too. They are a chain, I just don't know where they extend too.

Jason

[dean_harryman]

thanks for the link john, if anyone has any suggestions on the weight of glass I should use (3oz....6oz) i would appreciate it....and what kind of ofresin should I go with.....I am going to try a small piece...like a scoop for the decklid first....could I use the supplies for fiberglass that they sell at wal-mart just to try it out/??

[effvee]

Hi here is a site that can help. www.fibreglast.com
Also I am in the process of altering my running boards. I like the part about the spray foam. will this foam stick and frim up pretty fast? I have release agent, but I'm told waxing the mating area and then apply the release, will help the parts to come right off. Where can I buy this foam? I went to Micheal hobby shop and bought some hard foam the kind they use in flower decoration. But not the spray foam, it seems much easier with the spray foam, I will give it a try. :)

[dean_harryman]

I got it at a hardware store when I did some glass work at school

[dean_harryman]

I got some foam today....I am going to try to build an air scoop for the rear deacklid....I am going to force air to the carp...heheh

[effvee]

Where did you buy the foam?

[dean_harryman]

ace hardware....it is called something like crack fill...otr something....it is to fill holes and insulate walls.....I ahd to use 3 cans to get the foam build up enough to made the foam base for my scoop.....but I could have used 2....but I tried to flatten uout the foam from the first can and it stoped the reaction or something and it didnt "poof" i am going to finish carving and coat in a thin layer of bondo tonight...so pics are coming soon

[hybrid_john]

good news...I'm curious to see how it turn out for you...cant wait for pics :rolleyes:

[dean_harryman]

ok, so i carved out the scoop...and coated in bondo.....next step is to sand the bondo smooth...and later comes fiberglass....that I feel is going to be fun.....photos in the next couple of days

[hybrid_john]

cant wiat! :agree:

[bow]

heay man using that spray foam isn't the best way to go because you can get air pockets that can blow up when the resin starts to kick and cause you part to deform

[Tedzbug]

i have been talking about this methid for awhile too......I hope to see the results.....

I was thinking of taking a sheet or 2 of that blue foam house insulation and cuttin/gluing it to make a block for carving into a spoiler.....