[RocketsNW] Silk Lay-Ups

Tue Feb 2 10:25:03 PST 2010

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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