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tdw (Mechanical) (OP)
27 Sep 02 14:16
I need an adhesive to glue 6/6 nylon to itself.
Temperature is -40F to 130F.  Any suggestions?
aspearin1 (Chemical)
6 Nov 02 8:15
try an epoxy.  Though I've had associates perform a weld with formic acid.  May be worth a shot.
Glueguy (Materials)
3 Dec 02 16:46
As long as you don't require a structural adhesive (1000 psi) I would suggest using an agressive waterbase.  There are several on the market that will hold.  Try the largest glue manufacturers for suggestions i.e. HB Fuller PD8118, V-3869 or even WB0802.  3M & Bostik as well as several others will have equivalents.
Gowge (Coastal)
9 Mar 03 10:04
I am also trying to find a strong glue for nylon.  Does anything stick or weld Nylon 6 or nylon copolymers to itself or to pvc?  The problem is bonding the nylon as a monofilament to pvc tubing with good strength.  

At least one goods manufacturer has solved these problems, but isn't interested in sharing any 'trade secrets'.  ;)   

Their finished product indicates a clear adhesive of some kind was used and it even looks like the nylon was fused to some degree - welded?  The glue joint is covered in clear tubing - appears to be pvc tubing.  

Here's a closeup pic of the item...  




Thanks!!  
aspearin1 (Chemical)
10 Mar 03 10:09
Not that I can tell directly, but it could be a heat seal.  Nylon's a good thermoplastic and should seal well to itself under the right heating.
Gowge (Coastal)
10 Mar 03 12:42
aspearin1, I've tried heating this material and it's very sensitive to heat - but I thought maybe it might be some kind of heat weld, since the tubing appears it might even be pvc shrink tubing...  However, some of the sample pieces I have appear to have some kind of clear glue or adhesive  outside the connection/join - not a very neat job, but offers some clues I guess.  The diameter of the green lookin' material on the right is close to 0.70mm and withstands a 45-50lb pull, no problem.   It's a very strong, slim connection - I just don't know what method or adhesive is possibly being used.  

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