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[rebel-builders] RE: Fiberglass Layers

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Jesse Jenks

[rebel-builders] RE: Fiberglass Layers

Post by Jesse Jenks » Sun Feb 19, 2012 10:35 am

Mike,
I think that sounds like a good plan. You can always add another layer if
it's not stiff enough, but I bet it will be fine.
Jesse
From: Mike Kimball <mkimball@gci.net>
Reply-To: <rebel-builders@dcsol.com>
To: Rebel Builder's List <rebel-builders@dcsol.com>
Subject: [rebel-builders] RE: Fiberglass Layers
Date: Tue, 28 Mar 2006 10:34:54 -0900

Resending in case it didn't make it to the list the first time. I'm about
to order the stuff to finish this thing off. Thanks.

Mike

-----Original Message-----
From: Mike Kimball [mailto:mkimball@gci.net]
Sent: Friday, March 24, 2006 1:37 PM
To: Rebel Builder's List
Subject: Fiberglass Layers

Can anybody give me an idea of how many layers of 5.8oz S-Glass I'll need
for the nose cowl? I was thinking something like 1 layer at 45 degrees,
then another layer 90 degrees to the first layer, then another layer
aligned
with the airplane's longitudinal axis as someone suggested. But it seems
like that wouldn't be very thick. I wonder if I should repeat the layers
until I have a total of 6 layers or if that is overkill. S-glass is 30%
stronger and 15% stiffer than hardware store E-glass and so fewer plies
should be required.

Mike
044SR




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Mike Kimball

[rebel-builders] RE: Fiberglass Layers

Post by Mike Kimball » Sun Feb 19, 2012 10:35 am

There's no problem adding additional layers to the cured layers? Is the
bond at that point a bit less ideal than if all the layers were wet or tacky
when each one is added? I was trying to see if three layers would be OK so
that I wouldn't have to order as much cloth. I think I better order enough
for 6 layers so that I will have it on hand even if I don't use it all.
Now's not the time to try and save a buck.

Mike

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Jesse
Jenks
Sent: Tuesday, March 28, 2006 1:36 PM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] RE: Fiberglass Layers


Mike,
I think that sounds like a good plan. You can always add another layer if
it's not stiff enough, but I bet it will be fine.
Jesse
From: Mike Kimball <mkimball@gci.net>
Reply-To: <rebel-builders@dcsol.com>
To: Rebel Builder's List <rebel-builders@dcsol.com>
Subject: [rebel-builders] RE: Fiberglass Layers
Date: Tue, 28 Mar 2006 10:34:54 -0900

Resending in case it didn't make it to the list the first time. I'm about
to order the stuff to finish this thing off. Thanks.

Mike

-----Original Message-----
From: Mike Kimball [mailto:mkimball@gci.net]
Sent: Friday, March 24, 2006 1:37 PM
To: Rebel Builder's List
Subject: Fiberglass Layers

Can anybody give me an idea of how many layers of 5.8oz S-Glass I'll need
for the nose cowl? I was thinking something like 1 layer at 45 degrees,
then another layer 90 degrees to the first layer, then another layer
aligned
with the airplane's longitudinal axis as someone suggested. But it seems
like that wouldn't be very thick. I wonder if I should repeat the layers
until I have a total of 6 layers or if that is overkill. S-glass is 30%
stronger and 15% stiffer than hardware store E-glass and so fewer plies
should be required.

Mike
044SR




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Jesse Jenks

[rebel-builders] RE: Fiberglass Layers

Post by Jesse Jenks » Sun Feb 19, 2012 10:35 am

You are correct that a "wet" bond is better, but as long as you sand it
well, there would be no problem adding aditional layers to a cured part. I
think 3 X 6oz glass should be OK, though I've never made a nose bowl.

From: Mike Kimball <mkimball@gci.net>
Reply-To: <rebel-builders@dcsol.com>
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] RE: Fiberglass Layers
Date: Tue, 28 Mar 2006 14:05:36 -0900

There's no problem adding additional layers to the cured layers? Is the
bond at that point a bit less ideal than if all the layers were wet or
tacky
when each one is added? I was trying to see if three layers would be OK so
that I wouldn't have to order as much cloth. I think I better order enough
for 6 layers so that I will have it on hand even if I don't use it all.
Now's not the time to try and save a buck.

Mike

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Jesse
Jenks
Sent: Tuesday, March 28, 2006 1:36 PM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] RE: Fiberglass Layers


Mike,
I think that sounds like a good plan. You can always add another layer if
it's not stiff enough, but I bet it will be fine.
Jesse
From: Mike Kimball <mkimball@gci.net>
Reply-To: <rebel-builders@dcsol.com>
To: Rebel Builder's List <rebel-builders@dcsol.com>
Subject: [rebel-builders] RE: Fiberglass Layers
Date: Tue, 28 Mar 2006 10:34:54 -0900

Resending in case it didn't make it to the list the first time. I'm
about
to order the stuff to finish this thing off. Thanks.

Mike

-----Original Message-----
From: Mike Kimball [mailto:mkimball@gci.net]
Sent: Friday, March 24, 2006 1:37 PM
To: Rebel Builder's List
Subject: Fiberglass Layers

Can anybody give me an idea of how many layers of 5.8oz S-Glass I'll need
for the nose cowl? I was thinking something like 1 layer at 45 degrees,
then another layer 90 degrees to the first layer, then another layer
aligned
with the airplane's longitudinal axis as someone suggested. But it seems
like that wouldn't be very thick. I wonder if I should repeat the layers
until I have a total of 6 layers or if that is overkill. S-glass is 30%
stronger and 15% stiffer than hardware store E-glass and so fewer plies
should be required.

Mike
044SR




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Ken

[rebel-builders] RE: Fiberglass Layers

Post by Ken » Sun Feb 19, 2012 10:35 am

From my ahem limited experience, I predict that 3 layers will be more
than adequate but if you buy some extra material I suspect that you'll
find other uses for it and be pleased to have some on hand ;) If you
can resist adding any more than 3 layers, you'll be surprised how strong
a bowl shaped part is and appreciate the lack of weight.
Ken

Mike Kimball wrote:
There's no problem adding additional layers to the cured layers? Is the
bond at that point a bit less ideal than if all the layers were wet or tacky
when each one is added? I was trying to see if three layers would be OK so
that I wouldn't have to order as much cloth. I think I better order enough
for 6 layers so that I will have it on hand even if I don't use it all.
Now's not the time to try and save a buck.

Mike




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Mike Kimball

[rebel-builders] RE: Fiberglass Layers

Post by Mike Kimball » Sun Feb 19, 2012 10:35 am

Thanks Jesse and Ken. I'll get enough for three layers plus a bit more and
let that cure, then remove from the plug and check it out. I'll order more
to add later if it seems too flimsy.

Mike
044SR

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Ken
Sent: Tuesday, March 28, 2006 4:07 PM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] RE: Fiberglass Layers

From my ahem limited experience, I predict that 3 layers will be more
than adequate but if you buy some extra material I suspect that you'll
find other uses for it and be pleased to have some on hand ;) If you
can resist adding any more than 3 layers, you'll be surprised how strong
a bowl shaped part is and appreciate the lack of weight.
Ken

Mike Kimball wrote:
There's no problem adding additional layers to the cured layers? Is the
bond at that point a bit less ideal than if all the layers were wet or
tacky
when each one is added? I was trying to see if three layers would be OK so
that I wouldn't have to order as much cloth. I think I better order enough
for 6 layers so that I will have it on hand even if I don't use it all.
Now's not the time to try and save a buck.

Mike




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