[RocketsNW] Silk Lay-Ups

Tue Feb 2 11:20:50 PST 2010

The type of silk fabric used for draperies (window treatment store) is typically available more durable weaves than those purchased at a fabric store (used to make clothing).
Be sure that it is 100% silk.

Sam Grado
TRA L2

"If you're going to build it, build it from scratch"!

sales at pvconly.com
http://www.pvconly.com
http://www.sugarshot.org/bios/sgrado.html
http://groups.google.com/group/PVC-Motor-Rockets

--- On Tue, 2/2/10, Christopher Guenther <guentherchristopher at gmail.com> wrote:

From: Christopher Guenther <guentherchristopher at gmail.com>
Subject: Re: [RocketsNW] Silk Lay-Ups
To: "Sam Grado" <vonrang at yahoo.com>
Cc: kmcgoffin at worldaccessnet.com, "Vince Simoneau" <vincesimoneau at msn.com>, rockets at rocketsnw.com
Date: Tuesday, February 2, 2010, 12:25 PM

This is a very interesting topic.  Interesting enough in fact I want to try it out.  Does anyone have a good source for silk or do I just go to the local fabric store for it.  I do know that on most materials depending on the kind of die used if new fabric may or may not disappear when you apply the epoxy.  I had some great success with an old T-Shirt the wife wanted me to get rid of (I wore it to death).  I applied it like Fiber Glass and the and lost the white in the fabric but retained the graphics  I came out great and seems to be about as strong as if I had fiber glassed it even after a few flights and one with a very early deployment in which the delay burned instantly instead of lasting it's 14 seconds.

Chris Guenther
NAR L2

On Tue, Feb 2, 2010 at 6:07 AM, Sam Grado <vonrang at yahoo.com> wrote:

Here is an article on silk reinforced epoxies.
http://jrp.sagepub.com/cgi/reprint/25/1/33.pdf

Sam Grado
TRA L2

"If you're going to build it, build it from scratch"!

sales at pvconly.com
http://www.pvconly.com
http://www.sugarshot.org/bios/sgrado.html
http://groups.google.com/group/PVC-Motor-Rockets

--- On Tue, 2/2/10, Vince Simoneau <vincesimoneau at msn.com> wrote:

From: Vince Simoneau <vincesimoneau at msn.com>

Subject: RE: [RocketsNW] Silk Lay-Ups
To: vonrang at yahoo.com, kmcgoffin at worldaccessnet.com
Cc: rockets at rocketsnw.com
Date: Tuesday, February 2, 2010, 12:37 AM

I am a screenprinter (not SILK screen) as all fabric used in the industry is actually Dacron, or other high strength polyester mesh.
the "mesh" comes in various counts...110, 140, 200,305...etc. openings per inch when stretched to 20 newtons (because we use the openings to print through).
 The point I'm tring to make I guess, is that these fabrics are extremely high in tensile strength and applied properly would increase strength and durability

            Vince Simoneau
by the way I will soon (3-4 weeks) be ready to reproduce water-slide, vinyl, Mylar decals and graphics on a one-off basis.
I also can print T-shirts, jackets and hats as needed for groups and schools. Not a backyard operation...just getting our own shop up and running.
             I can be reached by e-mail or 425-346-0295

> Date: Mon, 1 Feb 2010 17:02:26 -0800
> From: vonrang at yahoo.com
> To: kmcgoffin at worldaccessnet.com
> CC: rockets at rocketsnw.com
> Subject: Re: [RocketsNW] Silk Lay-Ups
>
> My wife tends to think that I have come up with some of the weirdest ideas she has ever heard; so you may be on to something! 8^{)
>
> Sam Grado
> TRA L2
>
> "If you're going to build it, build it from scratch"!
>
> sales at pvconly.com
> http://www.pvconly.com
> http://www.sugarshot.org/bios/sgrado.html
> http://groups.google.com/group/PVC-Motor-Rockets
>
> --- On Mon, 2/1/10, kmcgoffin at worldaccessnet.com <kmcgoffin at worldaccessnet.com> wrote:
>
>
> From: kmcgoffin at worldaccessnet.com <kmcgoffin at worldaccessnet.com>
> Subject: Re: [RocketsNW] Silk Lay-Ups
> To: "Sam Grado" <vonrang at yahoo.com>
> Cc: rockets at rocketsnw.com
> Date: Monday, February 1, 2010, 6:50 PM
>
>
> You'll never know until you try it.  Some of the most significant advances
> in hobby rocketry have come from some of the seemingly weirdest ideas.
> +McG+
>
>
> > I haven't found any information like that as of yet. My investigation is
> > ongoing.
> >  
> > However, since I was a child I have heard and read that silk strands were
> > stronger than steel strands. To date, I have not heard of a single
> > skyscraper or so much as an outbuilding made from silk, but I did hear
> > about bullet-proof vests, airplane airframes and Samari armor made from
> > silk.
> >  
> > It is easily wet out by resin, so I thought it might merit some
> > further investigation. As with all things rocketry, this can't be an
> > original idea, hense my post to the forum and my purchase of a bolt of
> > fabric from a window treatments store in Scottsville.
> >
> > Sam Grado
> > TRA L2
> >
> > "If you're going to build it, build it from scratch"!
> >
> > sales at pvconly.com
> > http://www.pvconly.com
> > http://www.sugarshot.org/bios/sgrado.html
> > http://groups.google.com/group/PVC-Motor-Rockets
> >
> > --- On Mon, 2/1/10, greg at blastzone.com <greg at blastzone.com> wrote:
> >
> >
> > From: greg at blastzone.com <greg at blastzone.com>
> > Subject: Re: [RocketsNW] Silk Lay-Ups
> > To: "Sam Grado" <vonrang at yahoo.com>
> > Cc: rockets at rocketsnw.com
> > Date: Monday, February 1, 2010, 1:51 PM
> >
> >
> > Is there some indication that silk provides the same
> > strength/stiffness/whatever as carbon fiber? 
> >
> >
> > On Mon, 1 Feb 2010 11:47:46 -0800 (PST), Sam Grado <vonrang at yahoo.com>
> > wrote:
> >> Well that is what I was considering.
> >>  
> >> There are industrial grades of silk cloth and the price per yard seemed
> >> affordable compared to CF cloth.
> >>  
> >> I am exploring the use of silk to augment or replace some CF in airframe
> >> and fin lay-ups.
> >>
> >> Sam Grado
> >> TRA L2
> >>
> >> "If you're going to build it, build it from scratch"!
> >>
> >> sales at pvconly.com
> >> http://www.pvconly.com
> >> http://www.sugarshot.org/bios/sgrado.html
> >> http://groups.google.com/group/PVC-Motor-Rockets
> >>
> >> --- On Mon, 2/1/10, Bill Munds <appusher at q.com> wrote:
> >>
> >>
> >> From: Bill Munds <appusher at q.com>
> >> Subject: RE: [RocketsNW] Silk Lay-Ups
> >> To: vonrang at yahoo.com, "Dave Randall" <dmrandall at gmail.com>,
> >> rockets at rocketsnw.com
> >> Date: Monday, February 1, 2010, 12:53 PM
> >>
> >>
> >>
> >>
> >> Sam,
> >> Why not test it?  Newspaper and white glue work pretty well structurally
> >> (Jr. High science project).
> >> I would think that silk being pretty strong by itself would work if in
> >> multiple layers in different directions.
> >>  
> >> Hmmm.......
> >>
> >>
> >>
> >>
> >>
> >>  
> >>> Date: Mon, 1 Feb 2010 07:33:48 -0800
> >>> From: vonrang at yahoo.com
> >>> To: dmrandall at gmail.com; rockets at rocketsnw.com
> >>> Subject: Re: [RocketsNW] Silk Lay-Ups
> >>>
> >>> Yes, silk fabric for axial flexture and sheer strength.
> >>>
> >>>
> >>> Sam Grado
> >>> TRA L2
> >>>
> >>> "If you're going to build it, build it from scratch"!
> >>>
> >>> sales at pvconly.com
> >>> http://www.pvconly.com
> >>> http://www.sugarshot.org/bios/sgrado.html
> >>> http://groups.google.com/group/PVC-Motor-Rockets
> >>>
> >>> --- On Mon, 2/1/10, Dave Randall <dmrandall at gmail.com> wrote:
> >>>
> >>>
> >>> From: Dave Randall <dmrandall at gmail.com>
> >>> Subject: Re: [RocketsNW] Silk Lay-Ups
> >>> To: "Sam Grado" <vonrang at yahoo.com>
> >>> Date: Monday, February 1, 2010, 8:40 AM
> >>>
> >>>
> >>> Sam,
> >>>
> >>> I've embedded different cloths in a couple of rockets for decorative
> >>> purposes (not strength)... Is that what you're asking about, or is it
> >>> for strength?
> >>>
> >>> Dave
> >>>
> >>> On Mon, Feb 1, 2010 at 4:56 AM, Sam Grado <vonrang at yahoo.com> wrote:
> >>> > Has anyone here worked with silk cloth for airframe lay-ups?
> >>> >
> >>> > Sam Grado
> >>> > TRA L2
> >>> >
> >>> > "If you're going to build it, build it from scratch"!
> >>> >
> >>> > sales at pvconly.com
> >>> > http://www.pvconly.com
> >>> > http://www.sugarshot.org/bios/sgrado.html
> >>> > http://groups.google.com/group/PVC-Motor-Rockets
> >>> >
> >>> >
> >>> >
> >>> > _______________________________________________
> >>> > Rockets mailing list
> >>> > Rockets at rocketsnw.com
> >>> > http://mx1.blastzone.com/mailman/listinfo/rockets
> >>> >
> >>> >
> >>>
> >>>
> >>>
> >>> --
> >>> - Dave
> >>>
> >>>
> >>>
> >>>
> >>> _______________________________________________
> >>> Rockets mailing list
> >>> Rockets at rocketsnw.com
> >>> http://mx1.blastzone.com/mailman/listinfo/rockets
> >>>
> >>
> >>
> >>
> >>       
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> >  
> >
> >
> >
> > _______________________________________________
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> >
> >
>
>
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