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Advice with respect to sewing nylon
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Mike R
(redpoint) - F

Locale: British Columbia
Advice with respect to sewing nylon on 06/26/2012 02:05:37 MDT Print View

Hi Everyone.

I'm fairly new to sewing [a couple of months now]. So far so good. I just have a few questions regarding current projects that hopefully someone might be able to answer. I'm currently using a Sailrite LSZ1 sewing machine.

1] Well camping with a friend a few weeks back, we tore his 30D ripstop Integral Designs Siltarp [adjacent to one of the tie-out points]. I told him I'd reinforce all the tie-outs. I've cut a bunch of triangles which I'm going to sew to the canopy at each anchor/tie-out point. Then I'll re-sew the tie-out to the triangle. Question: these materials are super slippery, I'm petrified that I'm going to make a mess. Should I 'glue' [i.e. baste] the triangles down first prior to sewing? I suspect this might make it a lot easier to sew? This will be a lot of work, but I need the practice. I was going to sew the triangle patches on using a #12 needle, V30 Poly thread, and a zig-zag stitch. Any advice here?

2] I would like to attempt gluing 420D coated pack material [not unlike what Arc'teryx does with their AC2 packs]. Could someone recommend a brand/type of adhesive that would be used for this type of assembly. I'd also like to try gluing a H20 resistant zipper into the same pack. I remember reading about the type of adhesive Arc'teryx uses, but cannot, for the life of me, find the article.

3] I've been doing a bit of research into sourcing materials. What's the best/cheapest place to order Cordura brand 30D sil nylon? Any Canadian sources? There's a place I use in Vancouver, but it's way too expensive [e.g. $24/m for 1.5 oz sil nylon].

That's it for now - thank you.

Michael Pappas
(Mpap89) - F

Locale: bay area
silnylon adhesion problems on 06/26/2012 02:23:49 MDT Print View

you'll have a problem getting anything to adhere to the silnylon unless it's stilnet or some other sort of diluted silicone caulk. That may not really even work in terms of bonding but more in terms of sealing. I don't think you need to replace the torn out section with cordura brand silnylon. There's lots of places to get silnylon for $3-10/yard (diy gear supply, quest outfitters, etc). It is definitely a really frustrating material to sew with. you can try folding edges over and ironing on low heat to make a more defined edge. I think the main thing is just to use tons of pins. that way it can't slip out.
Michael

James Marco
(jamesdmarco) - MLife

Locale: Finger Lakes
Re: silnylon adhesion problems on 06/26/2012 03:54:54 MDT Print View

I would contact OWFINC.COM. (Outdoor Wilderness Fabrics, Inc.) They have some seconds that look really good, especially for patches. Yeah, as far as sewing it goes, as Michael says, pins. Some adhesives work fine, though. But, they make a bit of a mess. Ask when you call in. I seem to remember they had some stuff there.

Chris Muthig
(cmuthig) - M

Locale: Georgia
Re: silnylon adhesion problems on 06/26/2012 06:02:33 MDT Print View

On small length stitches, I normally feel like pins just get in the way. I've actually had great success using a normal glue stick on silnylon to help keep the pieces from moving around. It won't hold the pieces together well but it will create a non-slip surface between the two pieces.

I have used this method a good deal and haven't seen it mess up my machine. Once the glue dries, it can look odd, but you can just rub it off.

jerry adams
(retiredjerry) - MLife

Locale: Oregon and Washington
Re: Advice with respect to sewing nylon on 06/26/2012 07:44:05 MDT Print View

Maybe patches with the same material as the tent would be best. Then, they would stretch together and share the load better.

Just sew it. The stretchiness and slipperyness is more a problem on long seams.

Sew some test pieces first to get the hang of it.

Do you have any pictures of the failure? That would be interesting

Just Hammock
(DavefromVA) - F
Seam Tape on 06/26/2012 12:44:24 MDT Print View

Wouldn't cuben seam tape work?

David Olsen
(oware)

Locale: Steptoe Butte
nope on 06/26/2012 13:21:42 MDT Print View

Has to be silicone based to stick.

Mark Dijkstra
(Markacd) - F
glueing silnylon on 06/26/2012 15:59:45 MDT Print View

I have used undiluted silicone caulk spread out as thin as possible with a putty knife to glue peak and tie out reinforcements to my homemade tent. I haven't even bothered sewing the reinforcements after that and I don't think they will come loose anytime soon. It's probably a lot stronger than if I had just sewn on the second layer of silnylon.

Mike R
(redpoint) - F

Locale: British Columbia
Advice with respect to sewing nylon on 06/28/2012 12:06:02 MDT Print View

Thank you everyone, you're a wealth of information!

1] So b/c I don't have any faith in my sewing skills [yet], I've decided to use some silnet first to bond the reinforcements on first. Once dry, I'll then sew. I already had some 1.5 oz silnylon on hand so that's what I used for the triangular reinforcements. I'll try and get some pictures up. The rip is about 1.5" in length and through the doubled-up hem immediately adjacent to one of the side tie-out points.

2] Any advice on needle and thread size? I was thinking about V30 thread and a #12 needle?

3] Can anyone talk about fabric adhesives [not for silnylon] for heavier packcloth? Any brands or types that need to be used?

jerry adams
(retiredjerry) - MLife

Locale: Oregon and Washington
Re: Advice with respect to sewing nylon on 07/02/2012 13:20:27 MDT Print View

McNett Seam Grip works on non-silicone fabric. Or Shoe-Goo is similar.

If you sew through fabric an silicone, your needle may get gummed up, and then your machine may get gummed up so watch for it.