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Plastic Sheeting 101

Posted by The Plastic Sheeting Gurus! on Mon, Aug 01, 2016 @ 02:00

Plastic & Plastic Sheeting 101 

Plastic is the common name for a wide range of synthetic materials made from petrochemicals.  Plastic has had a big role in building materials due to some of its properties. Here are a fraction of the advantages:
  • Parts made from plastic are strong yet lightweight. They are easy to maneuver and put to use.
  • Hard plastic has excellent weather ability. It is durable, knock-and-scratch resistant.  Flexible plastic sheeting on the other hand does not weather well at all unless it has a U.V. additive added to the formulation to allow it to withstand the U.V. from the sun and atmosphere.
  • Hard plastic such as HDPE does not rot or corrode.
  • Plastic is remarkable in the fact that it has limitless possibilities in design achived by extrusion, bending and molding.  When plastic is made into its flexible form, plastic sheeting has countless applications it assists.
  • Plastic both hard and in the flexible form can be sewn and nailed.
  • Plastic can be recycled.
  • It is a poor conductor of electricity.

Products Made Of Plastic in the Construction Industry:

  • Insulation materials: PVC sheets, insulating membranes.
  • Pipes  : Electrical Conduits, Rain Water & Sewage pipes, Plumbing, Gas Distributions.
  • Cables : PVC Insulation on cables, Insulation Tapes .
  • Flooring : Flooring tiles & Rolls .
  • Domes / sky lights : Opaque as well as transparent.
  • Roofing  : colored or Double skinned for insulation.
  • Windows & doors : Extruded sections for Door and windows and panels.
 
In its simplest terms, the main difference between the different types of plastic is the way their cellular structure, or mol ecules bond with each other, and how tightly they are formed.

1) Low Density Polyethylene (LDPE), most common type of plastic sheeting, very flexible, most often from 0.5 mil thick to about 40 mil in flexible sheeting forms. Good conformability to surfaces. Because the cell structure is not as strong or dense as some other types of plastic sheeting, it is not typically as strong or puncture resistant as other forms or blends, but has thousands of common uses. Widely used for everything from construction and agricultural sheeting (often called Visqueen), Engineered Plastic Sheeting of countless types for such things as Vapor Retarders (also called Vapor Barriers by many), Surface Protection films, Pond and Canal Liners, Covers, Tarps, Abatement Plastic, Containment, packaging, and the list goes on.

2) Linear Low Density Polyethylene (LLDPE), blended form of LDPE where the film has much more flexibility, tensile strength, and more conformability. LLDPE is "softer" and more pliable, so is an excellent choice for such things as pond liners, or blended into other films to give them extra strength and flexibility. This is perfect for an application like a self-adhesive carpet protection film, where the film needs to have an amazing amount of strength in a very thin film to absorb impacts, but not tear or puncture. In this form of poly, the molecules all line up and strongly hold together as the film is stretched to give the structure much more strength and elongation than LDPE. Most common in thicknesses ranging from 0.5 mil to 40 mil in flexible plastic sheeting.

3) Medium Density Polyethylene (MDPE), the least commonly used form of polyethylene for flexible plastic sheeting. Has more strength than LDPE, a little more chemical resistance, tighter cell structure, more puncture and tear resistance. Often blended with LDPE and or LLDPE to give the attributes one is looking for in a particular type of film. For instance, many pond liners have MDPE to add some strength and toughness, without adding too much stiffness.

4) High Density Polyethylene (HDPE, aka HD), widely used for many applications. HDPE is the strongest, toughest, most chemical resistant, and least flexible of these four types of polyethylene. It also has the most UV resistance of the bunch without additive packages to increase this attribute. HDPE has a very tight cell structure, making it very difficult for other molecules to pass through its structure on a microscopic level. HDPE is the most easily field seamed of these products, and is generally used on an industrial level in thicknesses from about 12 mil to 100 mil thick. Most golf course ponds are lined with HDPE, most industrial ponds and canal liners, secondary containment liners, root barriers, many applications where chemical resistance is needed. This is also used in thousands or maybe millions of applications in thinner forms, especially in blends with the other types of polyethylene, because the HDPE adds much strength and toughness with its very tight bonds with other molecules.

The density of polyethylene is measured in a column of water, and they are all classified depending on ranges of density. LDPE (and LLDPE) are generally within the range of 0.919-0.924 g/cm³. MDPE are generally within the range of 0.926-0.940 g/cm³. HDPE are generally within the range of 0.941-0.965 g/cm³. These numbers can vary slightly depending on your source, and are not set in stone, just general guidelines.

 

 

Tags: Heavy Plastic

Plastic Sheeting for Hospital Remodels

Posted by Lee Hinsley on Tue, May 10, 2011 @ 02:32

Plastic sheeting plays a large role in hospitals. Some people refer to it as "Hospital Rated Visqueen".  What they are referring to are the large number of uses for the types of products supplied by Global Plastic Sheeting.  Some of the products and applications include:

-Fire Retardant Plastic Sheeting: The most popular of our fire retardant sheeting for hospital applications is ASFR-6.  This 6 mil Anti-Static Fire Retardant Plastic will not give off a static electricity discharge like normal plastics, so is safe around sensitive instruments.  Also does not attract dust, and hospitals love that feature.  We also stock everything from Construction Grade FR Poly, to Reinforced FR Polyethylene.

-Tacky Door Mats (anti-microbial) for the entrances to operating rooms, and for helping contain contaminants in construction/maintenance operations

-Heat Shrink Wrap: This 9 and 12 mil Fire Retardant product is used to wrap and contain any areas needing to be sealed off for any reason

-ZipWall poles: used to create a containment, these pole and jack systems are easily set up to create a containment of any size

zipwall hospital setupweb resized 600

 

-Raven Industries DeckProtek is popular in Health Care applications- 10, 14, and 30 mil versions provide a high level of Fire Retardant floor or wall protection.  While most of this is used during periods of construction or renovations, we have also provided it to cover the floors in emergency rooms, rooms where patients have radioactive treatments, where all surfaces must be covered, and many other applications

-Carpet Plastic FR: Self-Adhesive Fire Retardant covering for protecting carpeting, quickly, easily, and cost effectively

-Fire Retardant Tapes: 225FR Duct type sealing and seaming tape, 268 Black FR tape, and others to meet the FR needs of the health care industry

-Raven Industries Dura-Skrim 2FR and 10FR, 6 and 10 mil reinforced FR products with very low flame spread and smoke developed indexes can be used to cover or enclose any area

-Poly Srcim, various thicknesses and colors have been popular in health care.  They all meet stringent FR standards, and are available in a variety of colors, which is sometimes requested.

-Fluted Plastic Sheets: These 4’ x 8’ FR sheets are used to erect many containments in hospitals, make temporary hallways, temporary walls, tough floor protection, cover walls to protect from workmen damage, make devices for entry into the ceiling tiles for pulling cables, etc.

-PyroTarp: Line of products that stop fire cold.  Fabrics that basically will not burn up to at least 2200 degrees F, water based paint that stops a fire, and epoxy coatings that stop fires Cold!

If you would like to view these product in our On-Line store, please click here. Buy Plastic Now

Tags: plastic sheeting, Hospital Plastic, Products for Hospitals, anti-microbial, Zip Wall, heat shrink wrap, 30 mil, 10-14 mil, 2 FR, Heavy Plastic