Re: [CAD_CAM_EDM_DRO] Laser cutting pvc

I think you may have problems with the Glue even with a laser. I had to have a lot of Gaskets cut out of Volara closed cell foam about .040 thick. (vacuum jig gaskets) I recall the edges melting
back a bit on the ones that had a "built in" adhesive backing. Also owning a typical vinyl cutter,, I can see some "meltback" happening for sure but maybe it will allow you to peel it. I also wonder
if you can afford some some marks in the surface under the tag, even though i see you metion wire wheeling them..... The foam I sent out for cutting was placed on .080 aluminum to hold it and I know
the aluminum got marks in it from the laser.

I think you'll have a sticky mess after a while with a wire wheel.

I was wondering if you considered High pressure water to "pop" the rascals off. I've done that. This way no one gets all sticky peeling it off as it flys off in one fell swoop. If you are
repainting or refinishing, you'd likely have to use a solvent to get the sticky stuff off.

Go down to the nearest truck shop with a 4000+psi pressure washer and narrow nozzle. Hot water if possible. See what happens. Usually you can even do it without getting much water on the part.

Oh, and Watch your body parts !!! even 4000 psi gets pretty nasty !


Chris L


Doug Harrison wrote:

> I have come upon an opportunity to build a device for slitting glue backed
> pvc labels (at least I think its pvc, will know more tomorrow). This is
> currently being done with a knife. The adhesive causes problems with the
> cut.
>
> Has anyone done much vinyl cutting with a laser? I'm curious as to what the
> adhesive does when cuts are made very close together. We aren't making the
> labels - just trying to take them off a metal surface. I am hoping to slit
> them into fine enough strips that we can remove them with a wire wheel or
> something similar.
>
> Doug
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this as a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
>
> Post messages: CAD_CAM_EDM_DRO@yahoogroups.com
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...
> Moderator: jmelson@... timg@... [Moderator]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> bill,
> List Mom
> List Owner
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/