REFLECTOR: Epoxy question

Tue Oct 9 05:02:41 CDT 2012

The heavier tape looks like a 45 degree bias. Is the lighter one on a 45
deg bias?
If not, I wouldn't think it would perform the same function (structurally).

Larry

On Mon, Oct 8, 2012 at 4:22 PM, Reiff Lorenz <Reiff at lorenz.com> wrote:

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> Here's a photo of the thin 90-degree bid from Aircraft Spruce and the
> thick 45-degree BID from West Marine.****
>
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> [image: Description: C:\Users\Reiff\Pictures\From RLPhone\Camera
> roll\WP_000313.jpg]****
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> *From:* reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] *On
> Behalf Of *Reiff Lorenz
> *Sent:* Saturday, October 06, 2012 10:08 AM
> *To:* Velocity Aircraft Owners and Builders list
> *Subject:* Re: REFLECTOR: Epoxy question****
>
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> Do you have any pictures of the bid tape?****
>
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> Ron,****
>
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> It is: West Marine #727 (Episize Biaxial Tape, 4" x 20 yard roll.)  Here
> is the link to the part on West Marine's site.****
>
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> http://www.westmarine.com/webapp/wcs/stores/servlet/ProductDisplay?productId=14880&catalogId=10001&langId=-1&storeId=11151&storeNum=50218&subdeptNum=50219&classNum=50226
> ****
>
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> (If the above link is broken, try:    http://goo.gl/iHedd   )****
>
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> It is 50% heavier than the stock Velocity BID, so where the plans call for
> 5 layers of (woven 8.9oz) BID, I've been using 3 (straight 15oz) plies of
> this. It doesn't stretch or contort as much as standard BID (due to the
> non-structural, in-line stitching that holds it together), which is great
> when trying to place a long strip in position, but be aware that it won't
> conform to tight corners very well.****
>
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> West has free shipping on orders of $99 or more.****
>
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> For cosmetic applications, I've been using the Aircraft Spruce fiberglass
> tape. It's lighter that Velocity BID and it's laid out at 90-degrees, so
> it's not as strong. Good for keeping seams from cracking or as a smooth
> layer of glass on top of a structural layup.****
>
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> http://www.aircraftspruce.com/catalog/cmpages/etapes.php****
>
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> While you're there, get some peel-ply tape, too. So much easier than
> trying to cut 4-inch strips from a long roll. I got this from another
> builder and have used it almost exclusively.****
>
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> http://www.aircraftspruce.com/catalog/cmpages/peelply.php****
>
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> DISCLAIMER: I'm not a fiberglass expert. Most of my fiberglass work at
> this stage consists of fairings and flanges. I have no qualms about using
> the West fiberglass for things like holding on canard tips or making cowl
> flanges. I'd check with Velocity HQ or an engineer, though, before I used
> it in load-supporting applications like bulkhead reinforcements.****
>
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> Hope this helps!****
>
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>
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>
> *Reiff Lorenz, Dayton, OH*
>
> Velocity XL-RG, 37% complete****
>
> Currently working on: Creating a large-radius wing root fairing on the
> engine cowl.****
>
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>
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>
> *The Velocity Builders' Virtual Hangar is available 24/7 at:*
>
> *
> https://liveconferencepro.com/guest/loginguest.php?id=86a48563bb517ade0abf1a7ee1f38e65
> *****
>
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> *From:* reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] *On
> Behalf Of *Ron N VelocityXLFG
> *Sent:* Thursday, October 04, 2012 12:23 PM
> *To:* Velocity Aircraft Owners and Builders list
> *Subject:* Re: REFLECTOR: Epoxy question****
>
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>
> Do you have any pictures of the bid tape. And a part number . Sorry I can
> not picture what you are using.
> I would love to not have to cut bid tapes
>
> Ron****
>
> On 10/3/2012 9:54 PM, Reiff Lorenz wrote:****
>
>  ****
>
> I'm now using West exclusively. I use the fast hardener and mix it in
> small batches. Layups gel within an hour. If I hit it with a heat gun after
> it has gelled (and the exotherm danger has passed) it is fully set and
> sandable within a few hours. It keeps me building instead of waiting. I
> switch to the slow hardener for larger batches or projects that I don't
> expect to work on again in the next for 24 hours.****
>
>  ****
>
> While we're talking about West products, their 4-inch 45-degree BID tape
> saves a ton of time cutting tape strips! It's 50% heavier than the 8.9
> ounce BID that the kit calls for and its fibers are not woven ( they're
> held in place with a non-structural thread, like triax), so they are
> supposedly even stronger than woven BID. Anyone else using this?****
>
>  ****
>
>  ****
>
> *Reiff Lorenz, Dayton, OH*****
>
> Velocity XL-RG, 37% complete****
>
> Currently working on: Fitting cowl to wings.****
>
>  ****
>
>  ****
>
> *The Velocity Builders' Virtual Hangar is available 24/7 at:*****
>
> *
> https://liveconferencepro.com/guest/loginguest.php?id=86a48563bb517ade0abf1a7ee1f38e65
> *
>
> ****
>
>  ****
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> *From:* reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org<reflector-bounces at tvbf.org>]
> *On Behalf Of *Lou Stedman
> *Sent:* Wednesday, October 03, 2012 6:04 PM
> *To:* Canard Aviators; Velocity Reflector
> *Subject:* REFLECTOR: Epoxy question****
>
>  ****
>
> I got a lot of different answers to my question about epoxy from everyone.
> They were much appreciated. Today I called Velocity and asked them. They
> told me that I used the wrong hardener, which you all told me. They said
> that I could use the West as long as I used the slower hardener. In my case
> it is the 206. He did say that the 209 would be better but if I mixed more
> micros, they would take away some of the heat. He also suggested that
> instead of trying to fill the entire void which was created, that I epoxy
> in close cell foam to fill the original area. He told me to let it dry
> using the 206 and the next day I can cut a slot just a bit larger the the
> horn and epoxy it into place. The last thing he suggested was to put one
> layer of bid over the repaired area, sand , and paint. ****
>
>  ****
>
> So today I followed his instructions and had no problem. Tomorrow I will
> cut my slot and epoxy in the control horn. So not others know the “right”
> way to do this repair. Thanks again for all of your comments. It helped a
> lot.****
>
>  ****
>
> Lou Stedman
> Velocity SEFG
> N7044Q
> Olean, NY****
>
>
>
> ****
>
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