Atlantic Poly Blog

Why Use Vapor Barriers

Darren Kincaid - Tuesday, May 25, 2010

In cold climates, insulation alone is not enough to keep our costly heat from escaping. Given the slightest opportunity our precious heat will find its way out in an alarming way.

Once we understand the principle that warm air is attracted to cold air, and not the other way around, it should become almost a matter of pride to keep that warm air in!  Although some heat is lost by conduction through the insulation, most of the heat loss in a building is through air movement, or air infiltration, through the walls.

That's where vapor barriers come in. A vapor barrier – also known as vapor retarder – is merely a continuous sheet of impermeable material installed on the inside, i.e. the warm side of the wall, and it's designed to keep the warm air from escaping through or around the insulation and other building components.

There are several reasons for wanting to keep the warm air inside the house through a vapor barrier installation; among them:

  • Energy efficiency
  • Heating costs
  • Preventing the deterioration of the building materials (wood, insulation) by moisture (hence the alternate term moisture barrier). In winter, as the heated air meets the cold air, it creates condensation, which is water of course. The vapor barrier is designed to prevent this phenomenon from taking place.
  • Health problems caused by molds

Plastic Pocket Holders

Darren Kincaid - Wednesday, May 19, 2010
Plastic Pocket Holders are the economical choice to hold your warranties, instruction books, job tickets, and other documents or items for easy viewing and storage. If you don't see one on our site that fits your needs, we can make custom sizes. An example of a holder is below.

Fact Tag Holders - used by retailers to hold fact tags or signs that are attached to a specific item or along a shelf with a description of that item.

Stretch Wrap Basic FAQs

Darren Kincaid - Tuesday, May 11, 2010
What size do I need?
First, you need to answer whether are you applying the stretch wrap by hand or with automated equipment.  If you are stretching the film by machine, you will generally use a film over 20" high and 5000 or 6000 feet long. These rolls are heavy -- about 32 lbs. Since that's a little too much to carry around a pallet, most people use 18" x .80 x 1500' rolls to stretch their pallets by hand. If your skids are not very high or if you just need to wrap the top and bottom of the loads, you could use 15" or 12".

Maybe you have seen stretch wrap used to bundle things like millwork, plastic pipe and small boxes. This is called bundling stretch wrap. It's used like tape, but it won't stick to the product or leave residue. This wrap comes in 2-6" sizes.

Can I use stretch wrap for covering my food?  NO!!! Stretch wrap is not made for food contact and this industrial product should be kept away from children. Like any plastic, it can be dangerous.

Is stretch wrap recyclable?  Yes, stretch wrap can be recycled through many local and state recycling centers.

Recycling Logos for Plastic Bags

Darren Kincaid - Monday, May 03, 2010

20 years ago an American group came up with a numbering system to make it easy to recycle. If you mix them up recycling becomes tricky.   The most useful ones for poly are:

Low density polyethylene
- used in packaging bags, grip seal, carrier bags, bin liners and heavy duty sacks.

High density polyethylene
- some carrier bags and bin liners.

- used for display bags including flower bags and greetings cards.



Request a Quote

We have a dedicated quote fax number: 781-769-5722. We have the largest inventory of stock poly bags in the northeast. Stock orders can be shipped within 24 hours. Atlantic Poly specializes in hard to find sizes and special applications. Ask about our Drop-Ship and Just-in-Time delivery programs. Imprinting up to six colors and 4 color process printing available. Ask about package design assistance for special projects.

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