Yucky Shrink Wrap !?

srw19artist56

True Grumbler
Joined
May 4, 2005
Posts
61
From
Michigan
Got out a roll of shrink wrap yesterday. It was purchased many years ago (10-15?), stored in my constantly de-humidified basement. As I unrolled the entire roll,(looking for a usable area) it had greasy/oily blotches all thru it. Yikes-What happened? Did I buy a poor quality? Is it self-destructing!? Went thru past shrink wrap threads, so I feel equiped on what to buy now as far as equipment & film quality- Thanks! I'm just curious now about my oily shrink wrap
shrug.gif
Sharon
 

Framar

WOW Framer
Joined
Jul 24, 2001
Posts
26,384
From
Buffalo, New York, USA/Fort Erie, Ontario, Canada
I don't know what happened to your shrink-wrap but it sounds like a great argument for those customers who think shrink-wrapping is the perfect (and cheap) way to hang their artwork for posterity - NOT!

One of the main reasons I sold my shrink-wrap supplies was because of customers like that - plus it was a huge PITA!!!
 

Rebecca

SGF, Supreme Grumble Framer
Joined
Feb 28, 2002
Posts
3,339
From
Vancouver, B.C., Canada
Sounds like the plasticiser is migrating out. That is a problem with many many plastics and adhesives, even the so-called "good" ones.

Just goes to show what time and environment can do to inherently unstable materials.

Be happy you found out this way, rather than by getting oily good on the art!

Rebecca
 

JRB

PFG, Picture Framing God
Joined
Aug 12, 2000
Posts
7,106
From
San Diego, CA
I have shrink wrapped prints and posters up in my storage loft that have been up there for around eight years. Prior to that they where on display at my Midway store and some of them even date back to my old store on Sports Arena Blvd. Total time dates back to the 1970s, up to 30 years.

My storage loft gets downright hot in the summer, over a hundred I would guess. This is San Diego, so they get chilly in the winter, at best.

I have seen no oily residue nor anything else that I would call all that detrimental to the prints that have been stored this way. My guess is you got a hold of some cheap shrink wrap, or that by remaining in the rolled up state, a chemical reaction of some sort, occurred.

It is also possible that some where along the line, someone just spilled some oil on the roll, assuming it was standing on end.

I do remember having an old roll of shrink wrap someone gave me. About the first twenty or so feet of the role was unusable due to just dirt and a foggy look if I can remember right, no oil though.

Look on the cardboard roll that the shrink film is rolled on. You may be able to see who the manufacturer was. If you are that lucky, assuming it is someone like 3M, I am sure they will replace the roll for you.

John
 

Aspen CO

Grumbler in Training
Joined
Jun 2, 2005
Posts
12
From
Aspen, CO
I had the same problem a few years ago. I spoke with the manufacturer and apparently, if unused, it can go "bad". It doesn't seem to affect wrapped posters, if they are wrapped before it goes bad. They did not, however, replace the roll. I just had to buy a new one.
 

preservator

SGF, Supreme Grumble Framer
Joined
Mar 23, 2001
Posts
2,209
From
Wilmington, DE
Plasticizing oils are more likely to show up
when the material is concentrated on the roll than
when the plastic has been applied in a single
layer. In a single layer, it may evaporate. Understanding which polymers are soft by themselves and which need plasticizers to make
them flexible, is critical when one is choosing
among them.

Hugh
 

SusanG

SGF, Supreme Grumble Framer
Joined
Jul 1, 1999
Posts
2,316
From
Holland, PA, USA
This happened to me also Sharon, but only after about a year or so. I called the manufacturer of the shrink wrap and he said that it does have a limited shelf life. However there is no way for us to know how long it sat on the suppliers shelf. I have learned that it is not good to "stock-up" on this shrink film. I am trying to use clear bags with the adhesive flap if possible.

Susan
 

johnny

SGF, Supreme Grumble Framer
Joined
Jun 7, 2004
Posts
3,601
From
Ohio
I got stuck with several rolls like that from one of our friendly distributors. I too had to buy new ones. Cost me quite a bit. They were opened when received and bad, bad, bad. I don't think it's age. Every time I'd order a roll it was like throwing the dice, so now I get it from a more expensive distributor so I can return it. Hasn't happened in a couple years or so though.
 

Alan Sturgess

CGF II, Certified Grumble Framer Level 2
Joined
Oct 30, 1998
Posts
273
From
Vancouver, BC, Canada
Someone in the plastics industry told me that shirnkwrap material at the end of its life span turns back into what it started out as - oil. Now this may take a long time. We were also told by the suppliers who sell us shrink wrap that the shelf life is about 12 months so we have been always very careful to make sure the oldest stock is always shipped first to keep the stock fresh on our shelves.

Alan
 
Top