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Old July 27th 05, 03:02 PM
eddy long
 
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Default patch job

Hello all,
I'm doing a patch job to the underside of a fibreglass driftboat with
fibreglass matt and roving material (weave).

What is applied first after the area is wetted down woth expoxy resin - the
matt or the weave?

The material is about 18" x 18"

Thank you.
Eddy





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Old July 28th 05, 12:19 AM
Mungo Bulge
 
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http://sites.state.pa.us/PA_Exec/Fis...9/fibergls.htm
"eddy long" wrote in message
...
| Hello all,
| I'm doing a patch job to the underside of a fibreglass driftboat
with
| fibreglass matt and roving material (weave).
|
| What is applied first after the area is wetted down woth expoxy
resin - the
| matt or the weave?
|
| The material is about 18" x 18"
|
| Thank you.
| Eddy
|
|
|
|


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Old July 28th 05, 02:37 PM
Matt Colie
 
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Eddy,
There seems to be something that you are missing. Epoxy is the better
patch resin, but it performs poorly with mat. This is because mat is
bound by a temporary glue that is supposed to disolve in the acetone
that is part of a polyester mix. There should be no acetone in epoxy.

Mat is used to make a smooth surface that the lumps of the roving won't
show through.

The PA thing is not bad, but better is buy the West Epoxy (Gougeon bros.
) book titles something like "fibreglass boat repair" - it is worth the
few bucks.

As you say you are going to use epoxy (good), get the pump set for what
ever system you select. This will eliminate the "bad mix problem.

Matt Colie

eddy long wrote:
Hello all,
I'm doing a patch job to the underside of a fibreglass driftboat with
fibreglass matt and roving material (weave).

What is applied first after the area is wetted down woth expoxy resin - the
matt or the weave?

The material is about 18" x 18"

Thank you.
Eddy




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Old August 7th 05, 05:36 PM
Craig
 
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Do not use the Mat. Using with epoxy will give an uneven wet out and will
end up being a hell of a mess. Believe me, I know!

"eddy long" wrote in message
...
Hello all,
I'm doing a patch job to the underside of a fibreglass driftboat with
fibreglass matt and roving material (weave).

What is applied first after the area is wetted down woth expoxy resin -
the
matt or the weave?

The material is about 18" x 18"

Thank you.
Eddy






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Old August 7th 05, 06:38 PM
Lew Hodgett
 
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"eddy long" wrote:

I'm doing a patch job to the underside of a fibreglass driftboat with
fibreglass matt and roving material (weave).

What is applied first after the area is wetted down woth expoxy resin -
the
matt or the weave?



Neither one. Those materials are for polyester not epoxy.

Get some 17 oz double bias (+/-45) knitted fabric for this job.

I'd probably lay about 3 layers.

Lew


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