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best glue for nylon?

post #1 of 15
Thread Starter 
i am making a hot air balloon out of rip-stop nylon

it will be much easier if i glue the seams instead of sewing them

what is the best glue for nylon?

(no, i am not carrying any passengers- it will be about ten feet tall and about nine across)

hopefully it will be done by halloween

i have a flame thrower designed for killing weeds as a heat source, which will remain on the ground (for now)
post #2 of 15
Hope we don't see you on cable news like someone else !
post #3 of 15
Silicone
post #4 of 15
Heat Sealing, or Sewing. You could try Fabric Fusion Tape, (put it between the fabric and use an Iron to Fuse them together), but I do not know if it has the strength to hold in your application. Joann Fabrics carries it.
post #5 of 15
Quote:
Originally Posted by dogboy View Post
i am making a hot air balloon out of rip-stop nylon

it will be much easier if i glue the seams instead of sewing them

what is the best glue for nylon?

(no, i am not carrying any passengers- it will be about ten feet tall and about nine across)

hopefully it will be done by halloween

i have a flame thrower designed for killing weeds as a heat source, which will remain on the ground (for now)

Aqua seal...nothing better
post #6 of 15
Thread Starter 
Quote:
Originally Posted by Wraith View Post
Heat Sealing, or Sewing. You could try Fabric Fusion Tape, (put it between the fabric and use an Iron to Fuse them together), but I do not know if it has the strength to hold in your application. Joann Fabrics carries it.


"stitch witchery"

the stuff is pretty light, and weight is a big consideration here

i do have a roll of double sided tape designed for canvas work, but i think it is too heavy and is meant to tack stuff together prior to sewing, plus you can't sew through it because it gums up the machine

i was going to tack the gores together with bits of that stuff in strategic places and then take it outside and see what it looks like

but instead i am going to lay the gores on top of each other, fold the top layer back, and just glue the seams together on the flat, with some kraft paper between the seams to protect the layers below

i like the glue on fabric idearthough- as i type this i am thinking maybe if i fuse it together with that stuff like a dotted line, tidy up the puckers, and then glue thew whole seam it will come out a lot neater than glue alone

silicone would be too heavy

crazy glue i think, and i have a big bottle for basket making i got when i repaired by ice fishing pack basket

i wonder what the melting point of nylon is?

i also need to come up with a gantry for trials, and might use a backpack blower to open it up before i flame on
post #7 of 15
Quote:
Originally Posted by dogboy View Post
"stitch witchery"



the stuff is pretty light, and weight is a big consideration here



i do have a roll of double sided tape designed for canvas work, but i think it is too heavy and is meant to tack stuff together prior to sewing, plus you can't sew through it because it gums up the machine



i was going to tack the gores together with bits of that stuff in strategic places and then take it outside and see what it looks like



but instead i am going to lay the gores on top of each other, fold the top layer back, and just glue the seams together on the flat, with some kraft paper between the seams to protect the layers below



i like the glue on fabric idearthough- as i type this i am thinking maybe if i fuse it together with that stuff like a dotted line, tidy up the puckers, and then glue thew whole seam it will come out a lot neater than glue alone



silicone would be too heavy



crazy glue i think, and i have a big bottle for basket making i got when i repaired by ice fishing pack basket



i wonder what the melting point of nylon is?



i also need to come up with a gantry for trials, and might use a backpack blower to open it up before i flame on



Nylon, in general, melts for Molding purposes, between 400 and 650 Degrees F. You will start to see heat deflection at around 200 Degrees.



Cyanoacrylate Glue ( Super/Crazy Glue) will not penetrate the Nylon Filaments, but will act like little Blades around each Filament. Think how Mono and Barnacles mix. You could try a sample with Contact Cement, but the Glue Joint needs to be flexible.



Good idea on the Blower for initial inflation, most Hot Air Ballooners use a Fan/Blower to open them so the Burner Flame does not hit the Envelope.
post #8 of 15
Thread Starter 
Quote:
Originally Posted by Wraith View Post
Nylon, in general, melts for Molding purposes, between 400 and 650 Degrees F. You will start to see heat deflection at around 200 Degrees.

Cyanoacrylate Glue ( Super/Crazy Glue) will not penetrate the Nylon Filaments, but will act like little Blades around each Filament. Think how Mono and Barnacles mix. You could try a sample with Contact Cement, but the Glue Joint needs to be flexible.

Good idea on the Blower for initial inflation, most Hot Air Ballooners use a Fan/Blower to open them so the Burner Flame does not hit the Envelope.



yeah- i did a test piece with the crazy glue- too runny and not strong enough

i will get some of the fusible stuff and see if that works

i just finished cutting out the last gore, and they are all stacked up on the dining room table, waiting to go together

if the iron on stuff is close to strong enough, i can reinforce it with hand sewn points every 8 inches or so- i need to incorporate three small loops on each seam toward the top of the envelope to run the harness through anyway, so a bit more time with a needle and thread won't be a big deal
post #9 of 15
If EVER we needed pictures of a DIY project, THIS is it .

Would love to see what your are up to dogboy .

Alan
post #10 of 15
Check with a sail maker, newer spinnakers are glued not sewn.
post #11 of 15
Quote:
Originally Posted by CapeDave View Post
Check with a sail maker, newer spinnakers are glued not sewn.



Ultrasonic 'Welding' FTW.........
post #12 of 15
Thread Starter 
Quote:
Originally Posted by Gilbey View Post
If EVER we needed pictures of a DIY project, THIS is it .

Would love to see what your are up to dogboy .

Alan


i'll see what i can do

i put "liquid stitch" on a scrap piece last night to see how strong the joint is

i will try the iron on tape this evening

i did use ripstop nylon from a fabric store- i hope it is not too heavy

it seemed pretty light in the store, not unlike a spinnaker, but six pieces cut to size and pinned together awaiting the next step might be a bit heavy to actually float- i guess i will find out

maybe i will start a thread in the political graffiti forum to see if any of the reactionaries in there need a clown suit to complete their respective personas
post #13 of 15
Mylar and tape is an option for construction materials. It would be extremely light.
post #14 of 15
Quote:
Originally Posted by Wayne Tj View Post
Mylar and tape is an option for construction materials. It would be extremely light.



'Cheap' 1Mil Black Trash Bags from Walmart work well too.
post #15 of 15
Seam Sealer like they use to seal tent seams???
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