In article m,
thechris wrote:

which way to fiberglass
ok, i've seen so many conflicting guides to fibreglass actually works:


1.) put resin on part. put mat on part.

2.) put resin on mat. put mat on part.

neither seems to work.

the stuff just doesn't go around edges, NEVER goes around corners, and
doesn't lay flat all too well either. you get a ton of little air
pockets in it. you also can't seem to press it down, as that doens't fit
the problem, and the fibers just pull up...

i'm getting mad at this stuff. the resin gets gummy way too fast, and
the peices don't stick ever. the only way i've found that works is to
place a single peice of mat, hold it down with wax paper until it dries.
sand it. repeat. at that rate i will be done in time for graduation,
that is, if i graduate 3 years from now with a masters...

so how do you place the glass? i've tried many things and the part is
just truning out worse and worse.

The mat is a filler that goes between layers of fibers to reduce
flexing. It doesn't sound like you're using it correctly. There are
many different types of fiber. You can get very fine woven fibers that
will contour corners easily. Find a store with a good selection. Tap
Plastics is great if you have one of those around.

As for the resin:

Keep your jar of resin in a bucket of iced or cool water to slow its
curing. This is very important if you have a large batch of epoxy
because it starts generating heat from the moment you mix it. Keep the
resin covered if the air is humid.

If you need to speed up curing, hold the fiberglass down and apply heat
from a heat gun or hair drier.

Buy the $0.30 soft plastic tool for spreading resin into fiberglass
material. It works great.

Visit www.TermPro.com Forum under Installation/Fabrication there are about
300 threads on fiberglass and a goo week of reading there. you should be
able to have all your questions answered after that. It helped me with
fabbing kick/enclosures for a lot of the cars ive done.
EFFENDI

"thechris" wrote in message
s.com...
which way to fiberglass
ok, i've seen so many conflicting guides to fibreglass actually works:


1.) put resin on part. put mat on part.

2.) put resin on mat. put mat on part.

neither seems to work.

the stuff just doesn't go around edges, NEVER goes around corners, and
doesn't lay flat all too well either. you get a ton of little air
pockets in it. you also can't seem to press it down, as that doens't fit
the problem, and the fibers just pull up...

i'm getting mad at this stuff. the resin gets gummy way too fast, and
the peices don't stick ever. the only way i've found that works is to
place a single peice of mat, hold it down with wax paper until it dries.
sand it. repeat. at that rate i will be done in time for graduation,
that is, if i graduate 3 years from now with a masters...

so how do you place the glass? i've tried many things and the part is
just truning out worse and worse.
--
thechris
------------------------------------------------------------------------
CarAudioForum.com - Usenet Gateway w/over one million posts online!
View this thread:
http://www.caraudioforum.com/vbb2/sh...hreadid=152130

thechris wrote:
which way to fiberglass
ok, i've seen so many conflicting guides to fibreglass actually works:

Depends on who you ask, and what you're trying to accomplish. In
general, you

1. Fix the mat to the "part"
2. Brush the fiberglass resin+hardener mix on the mat.

However, using a "mat" is not always desired or necessary. I never used
the fiberglass matting - I used grill cloth instead. On some projects, I
applied the resin directly to the surface of what I was molding (i.e.,
the spare tire well).

What are you trying to accomplish? There are many techniques for
fiberglass fabrication. It sounds like you're trying to repair a car
body, not build somehting for car audio.


--
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ok, so now i'm even more confused. one person talks about the epoxy
resin, that's like the jelly kind right? i had terrible luck with that
stuff.

"I used grill cloth instead."
-you mean ONLY grille cloth and not a fiberglass cloth or fiberglass
mat? if so i may just go that routh beause it would be so much cheaper!
--
thechris
------------------------------------------------------------------------
CarAudioForum.com - Usenet Gateway w/over one million posts online!
View this thread: http://www.caraudioforum.com/vbb2/sh...hreadid=152130

heres a how-to link some guy did. In many applications he doesn't even
use the fiberglass fabric.

http://web.njit.edu/~cas1383/proj/main/

The tempro site forum has some good how-tos and such.
http://www.termpro.com/

Garrett

thechris wrote:

which way to fiberglass
ok, i've seen so many conflicting guides to fibreglass actually works:

1.) put resin on part. put mat on part.

2.) put resin on mat. put mat on part.

neither seems to work.

the stuff just doesn't go around edges, NEVER goes around corners, and
doesn't lay flat all too well either. you get a ton of little air
pockets in it. you also can't seem to press it down, as that doens't fit
the problem, and the fibers just pull up...

i'm getting mad at this stuff. the resin gets gummy way too fast, and
the peices don't stick ever. the only way i've found that works is to
place a single peice of mat, hold it down with wax paper until it dries.
sand it. repeat. at that rate i will be done in time for graduation,
that is, if i graduate 3 years from now with a masters...

so how do you place the glass? i've tried many things and the part is
just truning out worse and worse.
--
thechris
------------------------------------------------------------------------
CarAudioForum.com - Usenet Gateway w/over one million posts online!
View this thread: http://www.caraudioforum.com/vbb2/sh...hreadid=152130

You need a fiberglass roller (it's a metal roller with little pizza cutter
type circles running the full length of the roller) to get all the air
bubbles out, and you need to use the chopped fiberglass mat to conform to
corners, etc.. The more wet you get it, and the more you WORK IT around the
corners, the more it will actually go. Make sure you have enough resin to
get it to conform to the curve and actually STICK, but don't use TOO MUCH
resin or it will just slip/slide and pull away from whatever you are
adhering to. Do only a little bit at a time (don't do like 10 layers at once
or it will be too heavy to stick. Do a couple layers, then let it tack up,
then do more. Or let it fully cure, then sand it (to get the waxy buildup
off the surface) and then lay more layers on. repeat until you have enough
thickness for your particular needs.

"Kevin McMurtrie" wrote in message
...
In article m,
thechris wrote:

which way to fiberglass
ok, i've seen so many conflicting guides to fibreglass actually works:


1.) put resin on part. put mat on part.

2.) put resin on mat. put mat on part.

neither seems to work.

the stuff just doesn't go around edges, NEVER goes around corners, and
doesn't lay flat all too well either. you get a ton of little air
pockets in it. you also can't seem to press it down, as that doens't fit
the problem, and the fibers just pull up...

i'm getting mad at this stuff. the resin gets gummy way too fast, and
the peices don't stick ever. the only way i've found that works is to
place a single peice of mat, hold it down with wax paper until it dries.
sand it. repeat. at that rate i will be done in time for graduation,
that is, if i graduate 3 years from now with a masters...

so how do you place the glass? i've tried many things and the part is
just truning out worse and worse.

The mat is a filler that goes between layers of fibers to reduce
flexing. It doesn't sound like you're using it correctly. There are
many different types of fiber. You can get very fine woven fibers that
will contour corners easily. Find a store with a good selection. Tap
Plastics is great if you have one of those around.

As for the resin:

Keep your jar of resin in a bucket of iced or cool water to slow its
curing. This is very important if you have a large batch of epoxy
because it starts generating heat from the moment you mix it. Keep the
resin covered if the air is humid.

If you need to speed up curing, hold the fiberglass down and apply heat
from a heat gun or hair drier.

Buy the $0.30 soft plastic tool for spreading resin into fiberglass
material. It works great.