Chemistry Talk Chemistry Talk    FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Best Adhesive for Gluing Polyester Labels to Plastic          Chemistry Talk Forum Index -> Chemistry Talk View previous topic :: View next topic   Author Message Will Guest Posted: Mon Jun 30, 2008 12:59 am    Post subject: Best Adhesive for Gluing Polyester Labels to Plastic What are the best commercial adhesives for gluing polyester labels to plastic? My application requires tolerance of temperature between -20 F and +150 F. This is a low volume application so I would appreciate commercial brand names that could be purchased off the shelf. -- Will Back to top   Ads Advertising Sponsor Bill Penrose Guest Posted: Mon Jun 30, 2008 12:59 am    Post subject: Re: Best Adhesive for Gluing Polyester Labels to Plastic On Jun 29, 12:59 pm, "Will" <westes-...@noemail.nospam> wrote: Quote: What are the best commercial adhesives for gluing polyester labels to plastic? What is the plastic? Should it remain flexible, like clothing? Consider heat sealing. Or fabric cement from a sewing store. DB Back to top   Ads Advertising Sponsor Will Guest Posted: Mon Jun 30, 2008 6:24 am    Post subject: Re: Best Adhesive for Gluing Polyester Labels to Plastic "Bill Penrose" <penrose@iit.edu> wrote in message news:0d898bc2-c40b-4fc2-ad2b-3e5c610d57d4@8g2000hse.googlegroups.com... Quote: On Jun 29, 12:59 pm, "Will" <westes-...@noemail.nospam> wrote: What are the best commercial adhesives for gluing polyester labels to plastic? What is the plastic? Should it remain flexible, like clothing? The plastic is a clip on an insertable device, and it is rigid and probably one half inch thick. It is not meant to twist or bend in the section that is labeled. I'm not sure of the exact type of plastic, but the part is clearly plastic injection molded. -- Will Back to top   Ads Advertising Sponsor Mark Thorson Guest Posted: Mon Jun 30, 2008 7:48 am    Post subject: Re: Best Adhesive for Gluing Polyester Labels to Plastic Will wrote: Quote: "Bill Penrose" <penrose@iit.edu> wrote in message news:0d898bc2-c40b-4fc2-ad2b-3e5c610d57d4@8g2000hse.googlegroups.com... On Jun 29, 12:59 pm, "Will" <westes-...@noemail.nospam> wrote: What are the best commercial adhesives for gluing polyester labels to plastic? What is the plastic? Should it remain flexible, like clothing? The plastic is a clip on an insertable device, and it is rigid and probably one half inch thick. It is not meant to twist or bend in the section that is labeled. Insertable into what? A human body? Quote: I'm not sure of the exact type of plastic, but the part is clearly plastic injection molded. Therefore not epoxy, silicone, or Teflon (DuPont brand, PTFE), right? If you cannot answer all of those questions, we can't help you. Back to top   Ads Advertising Sponsor Bill Penrose Guest Posted: Mon Jun 30, 2008 4:04 pm    Post subject: Re: Best Adhesive for Gluing Polyester Labels to Plastic On Jun 29, 6:24 pm, "Will" <westes-...@noemail.nospam> wrote: Quote: "Bill Penrose" <penr...@iit.edu> wrote in message news:0d898bc2-c40b-4fc2-ad2b-3e5c610d57d4@8g2000hse.googlegroups.com... On Jun 29, 12:59 pm, "Will" <westes-...@noemail.nospam> wrote: What are the best commercial adhesives for gluing polyester labels to plastic? What is the plastic? Should it remain flexible, like clothing? The plastic is a clip on an insertable device, and it is rigid and probably one half inch thick. It is not meant to twist or bend in the section that is labeled. I'm not sure of the exact type of plastic, but the part is clearly plastic injection molded. If it's molded, it's likely thermoplastic. You could use heat sealing. But if it's opaque and the surface is very smooth, it might be Delrin or some similar plastic with poor adhesion qualities. Put a drop of acid on the plastic. If it smells of formaldehyde, then it's Delrin. You can roughen the surface with a short treatment with dilute acid. If it's translucent, it might by polypropylene or polyethylene. In that case, heat sealing is about your only option. I've had some luck with hot-melt glue, even with Teflon, and you might want to try it. DB Back to top   Ads Advertising Sponsor Bill Penrose Guest Posted: Mon Jun 30, 2008 8:56 pm    Post subject: Re: Best Adhesive for Gluing Polyester Labels to Plastic On Jun 30, 12:42 pm, Mark Thorson <nos...@sonic.net> wrote: Quote: When a plastic is gray, that only means that carbon black and titanium dioxide are being used as opacifiers. It doesn't tell you anything about what kind of plastic it is. Yep. Time to do some experiments and see what works. PVC cement, perhaps thinned. (label may disintegrate) Heat seal with a hot one-inch chisel point (a shaped die is better). High or industrial quality double sided tape. DB Back to top   Ads Advertising Sponsor Will Guest Posted: Mon Jun 30, 2008 11:33 pm    Post subject: Re: Best Adhesive for Gluing Polyester Labels to Plastic "Bill Penrose" <penrose@iit.edu> wrote in message news:f48a7b76-d2ae-470d-86cb-dfbb2c3931df@z66g2000hsc.googlegroups.com... Quote: On Jun 29, 6:24 pm, "Will" <westes-...@noemail.nospam> wrote: "Bill Penrose" <penr...@iit.edu> wrote in message news:0d898bc2-c40b-4fc2-ad2b-3e5c610d57d4@8g2000hse.googlegroups.com... On Jun 29, 12:59 pm, "Will" <westes-...@noemail.nospam> wrote: What are the best commercial adhesives for gluing polyester labels to plastic? What is the plastic? Should it remain flexible, like clothing? The plastic is a clip on an insertable device, and it is rigid and probably one half inch thick. It is not meant to twist or bend in the section that is labeled. I'm not sure of the exact type of plastic, but the part is clearly plastic injection molded. If it's molded, it's likely thermoplastic. You could use heat sealing. Can you explain the heat sealing process, and what do we buy for that? I suspect the plastic we are using is a thermoplastic like ABS. I guess it could also be a thermosetting plastic like any of these: Melamine formaldehyde (MF) Urea Formaldehyde (UF) Polyester resin (PR) Quote: But if it's opaque and the surface is very smooth, it might be Delrin or some similar plastic with poor adhesion qualities. Put a drop of acid on the plastic. If it smells of formaldehyde, then it's Delrin. You can roughen the surface with a short treatment with dilute acid. If it's translucent, it might by polypropylene or polyethylene. In that case, heat sealing is about your only option. I've had some luck with hot-melt glue, even with Teflon, and you might want to try it. The plastic is a solid gray, so definitely not a translucent material. It is not opaque if by that you mean quasi-translucent but unable to see through the material. It is smooth. -- Will Back to top   Ads Advertising Sponsor Mark Thorson Guest Posted: Tue Jul 01, 2008 12:42 am    Post subject: Re: Best Adhesive for Gluing Polyester Labels to Plastic Will wrote: Quote: The plastic is a solid gray, so definitely not a translucent material. It is not opaque if by that you mean quasi-translucent but unable to see through the material. It is smooth. When a plastic is gray, that only means that carbon black and titanium dioxide are being used as opacifiers. It doesn't tell you anything about what kind of plastic it is. 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