This is topic weeding vinyl.........& where its been. in forum Old Archives at The Letterville BullBoard.


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Posted by utter (Member # 634) on :
 
In reading Scooter's post on glass application, I believe it was Rapid Roger who said something about the age of the app tape. I figure this would also apply to rolls of vinyl. especially if the rolls of vinyl were stored in a hot warehouse for long periods of time. my point being: Some of the vinyl I get weeds like crazy, other rolls are a virtual nightmare. My supplier is in an old warehouse. The office has A.C. but the storage area doesn't. Most of the time I pick up my supplies there. In the summer it must be 100 plus in there. The only cooling they have is a large fan. Surely this is detrimental to the adhesive on the vinyl, and could be causing weeding problems, and possible failures down the road. Am I barking up the right tree here? Should we find suppliers with climate controlled storage for our vinyls and tapes? Should i talk to them about it?
The vinyls that I get that don't weed well seem like the adhesive is healing itself after the cut. To me this would seem like a heat or humidity issue. My office is AC'd and I maintain a fairly constant temp here but where's my vinyl been before it got here?
 
Posted by roger bailey (Member # 556) on :
 
I think you may be on to something here Dave.

If heat and humidity change the effects of adhesive on trans tape, why would we not expect the same from the adhesive on vinyl ??

Anybody heard of any studies or findings ??

Roger
 
Posted by Steve Burke (Member # 2674) on :
 
Hi Dave,

Good questions...
If your adhesive is healing itelf, can I play Devil's Advocate and ask if your knife is sharp and set to the right pressure?

I can't think of too many places that do this. To cool an area just the size of our warehouse, in relatively cool Atlantic Canada, would cost a fortune. Maybe I'm wrong, but from MY experience, I've never been in a building that cooled the warehouse. Those poor saps just had to put up with it.

That being said, you may be onto something, as Roger said. It only makes sense, I guess! If you have vinyl delivered, that may not help- delivery vans can be infernos, as well. As well, most vinyl cheat sheets mention aa shelf life, usually about a year...
 
Posted by John Thompson (Member # 2750) on :
 
A few weeks ago there was a post on ORACAL 651 doing this and it was the vinyl because I myself would get one roll that would weed good and then the next minute another wouldn't and it wouldn't matter if it was a brand new blade or how deep you cut or how much pressure you used, it would still not weed good. That post concluded that it was just a few select colors that were doing it. That meant that it has to be a manufactruing flaw because I am sure that evrybody wasn't getting ORACAL fron the same place and I myself wasn't getting it all from the same distributor. I am sure that other vinyl manufacturers have the same kind of problems. SOmebody even mentioned in that post that they had found out that ORACAL was aware of the problem and fixing it. By the way, that last rolls of the culprit colors of ORACAL I got, weeded fine so they must have fixed the problem.
 
Posted by utter (Member # 634) on :
 
Hi Steve.
Right now everything is working fine, but I have had times where I've had a new blade, and some rolls weed fine, and other rolls make you want to scream. I know I've seen posts on here where people are beside themselves because they can't get something to weed right. If this is the case, I'm not saying to AC the entire warehouse, however, maybe some attention needs to be givin to the problem. i.e. A room just for vinyl with a small window type AC to keep the temp below 80F or 85F and maybe help with humidity. And, maybe I'm all wet here,(no pun intended) but this does make sense to me. I just don't know that much about the technical end of this stuff. Thanks.
 


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