[NRVR-Members] Doing Fiberglass and vacuum bagging

[Thomas Tweeks Weeks]

Wow.. Carbon Fiber for Cheap anyone?
[ https://www.banggood.com/3K-200gsm-20cm-Plain-Weave-Carbon-Fiber-Cloth-Fabric-3060150cm-p-1082144.html ]( https://www.banggood.com/3K-200gsm-20cm-Plain-Weave-Carbon-Fiber-Cloth-Fabric-3060150cm-p-1082144.html )
 
20cm x 150cm for $7!
 
Tweeks
 
On Sunday, February 10, 2019 10:50pm, "Thomas Tweeks Weeks" <tom at theweeks.org> said:



> Bob.. I never got a complete answer from you the other night at B&B before I had
> to leave... which layers to use for doing an ON-Rocket, tip-to-tip, multi-layer
> carbon fiber vacuum bag for my 5.5" Black Brant.
> 
> I want a glass smooth peel ply, but also want to extract excess epoxy (West
> Systems), so I assume I need perforated peel?
> 
> I THINK I know SOME of the supplies below are close to what I'm looking for..
> 
> Perforated, Release Film or Peel-Ply?:
> https://www.fibreglast.com/product/low-temperature-release-film-1580/Vacuum_Bagging_Films_Peel_Ply_Tapes
> 
> Breather/Bleeder Cloth:
> https://www.fibreglast.com/product/Breather_and_Bleeder_579/Vacuum_Bagging_Films_Peel_Ply_Tapes
> 
> Stretch Bagging Film:
> https://www.fibreglast.com/product/stretchlon-200-bagging-film-1678/Vacuum_Bagging_Films_Peel_Ply_Tapes
> 
> And since I'm sealing it around 1/4 of the fincan at a time.. There was some type
> of sealing tape/clay stuff (like sticky-tac).. was there a brand or link you can
> gimme? Or was it their "yellow" or "gray" bagging leak tape?
> 
> Also.. if I'm using a shop vac and/or a harbor freight vacuum machine.. what do I
> need for an interface nipple (or "vacuum breech unit"?)to attach the hose to?
> Do you get a good enough seal to have a passive on/off valve above the breech to
> you don't have to run the vacuum for hours?
> 
> Thanks...
> 
> Tweeks
> p.s. for those who have never seen this done.. it's how you get a super strong,
> very light fiberglass or carbon fiber fin layup. Here's a video of the mechanics..
> though this isn't a tip-to-tip fin job.. it's the same process.
> https://www.youtube.com/watch?v=5jSwx_EkJgM
> 
> 
> 
> On Wednesday, February 6, 2019 4:37pm, "Thomas Tweeks Weeks"
> <tom at theweeks.org> said:
> 
> > Hey all.. I have a couple of projects that I need to do some fiberglassing
> and
> > carbonfiberrrring.. and was wondering what folks used for good results on
> doing
> > both unmounted fin as well as on-rocket baggging (since one of my big rockets
> that
> > needs tip-to-tip CFings is already assembled).
> >
> > You guys use a shop vac and an on/off valve to lock the vacuum, or do you use
> a
> > real vacuum pump like from HFreight? (or a combination)
> >
> > What are you preferred layers of peel ply (for glass-like finish, but stull
> pull
> > excess epoxy out)?
> >
> > What about additional breather/bleeder and bagging film preferences?
> >
> > just looking through all the options:
> > https://www.fibreglast.com/category/Vacuum_Bagging_Films_Peel_Ply_Tapes
> >
> >
> > Tweeks
> >
> >
> > _______________________________________________
> > NRVR-Members mailing list
> > NRVR-Members at mail.nrvr.org
> > http://server2.nrvr.org/mailman/listinfo/nrvr-members
> >
> 
> 
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://server2.nrvr.org/pipermail/nrvr-members/attachments/20190223/68d02b03/attachment.html