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using Velcro on lipos

Old 06-20-2009, 05:33 AM
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Rhondas
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Default using Velcro on lipos

Is it OK to put a few pieces of Velcro on a lipo pack so it doesn't move in the fuselage ? If so whats a good glue to hold to the battery with, sometimes I found the Velcro 's adhesive isnt very good holding it on the pack.
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Old 06-20-2009, 05:44 AM
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Larry3215
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Velcro is fine on the packs. Thats what most people use.

If you clean the outside of the pack where the velcro is going to go it should stick fine. Thats all I use is the velcro with the peal and stick backing.
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Old 06-20-2009, 06:10 AM
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I found some narrow velcro strap at a local craft store.

There is also some Velcro Industrial Strength that has really aggresive tape. swipe the battery shrink wrap with QD electrial cleaner (Shucks), and it will stick good.

A little dab of Loctite Sumo glue or hot glue on the sticky side if you prefer.
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Old 06-20-2009, 01:34 PM
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I seem to remember Ron (SkySharkster) saying he uses some 5-min epoxy to help with adhesion for velcro. I used it on my MUS for the velcro in the battery bay, but have not maidened the plane yet, so I can not relate from personal experience. Just mix a little epoxy, spread a very thin layer where you are attaching the velcro, lay the velcro on the epoxy, let it cure and you should be good to go.
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Old 06-20-2009, 01:35 PM
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I've used some 'economy' velcro and had some packs heat enough it melted off the adhesive. A flying buddy had the same problem but when he switched to good 3M high-strength he's never had a problem. I've switched to rubber bands, often installing a small cup hook near to secure the rubber band to.
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Old 06-20-2009, 02:17 PM
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Larry3215
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After ejecting a couple of packs, I switched to useing velcro straps on all my packs. The velcro thats on the pack only keeps the pack from sliding back and forth. I dont rely on it holding the pack in the plane.
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Old 06-20-2009, 02:30 PM
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Larry, a VERY good point!
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Old 06-20-2009, 02:31 PM
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yup, velcro on the pack to keep it in position for/aft and a velcro "seat belt" to keep it in the plane on negitive G manuvers.
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Old 06-20-2009, 02:50 PM
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Larry3215
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Yup. Here is proof positive that "seat belts" can save planes

Starting about the 2 minute mark......

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Old 06-20-2009, 03:22 PM
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info 3M Super 77 on Velcro

On all my RX's, Lipo's, ESC, etc., I use 3M Super 77 Spray Adhesive on the Velcro surfaces.

I always use the smooth side of the Velcro showing on all components that I will put in the model, The model will have the rough side showing.

Spray the Velcro strips , wait 2 min. then respray. On the surfaces that the Velcro will be applied (rx,lipo,esc, model area's) , spray a small amount on an old plastic coffee lid and use a cotton Q-tip or small brush and apply to those surfaces. Don't forget to clean all surfaces well before using. I use rubbing alcohol for all my de-greasing.

After 2 coats have been sprayed on the components, wait another 2-3 min. and stick where you want them.

I find that treating those sufaces help in a solid bond. Greatest strenght is overnight, but they can be used in a few hours.

Paul
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Old 06-20-2009, 04:10 PM
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Originally Posted by Larry3215 View Post
Yup. Here is proof positive that "seat belts" can save planes

Starting about the 2 minute mark......

I had a pack break loose from my Yak55 foamy a couple years ago. My situation did not turn out as good as the video. I was in a dive so the lipo swung forward and got struck by the prop ruining the lipo. The plane did not gently glide down either. It crashed pretty hard but was repairable.
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