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Dart Impact Strength is a measure of a material's ability to withstand impact and is an important property to consider in applications where the material is likely to be subjected to impact loads. It is a traditional method for evaluating the impact strength or toughness of plastic film/sheeting It is typically measured by dropping a weighted dart from a specified height onto a sample of the material and measuring the amount of force required to cause a visible hole or crack.

The  Drop Dart test is, ASTM D1709, ISO 7765.

Specimen size:
Film samples that can be cut to 230 mm x 230 mm (9" x 9") specimens
A minimum of 30 specimens are required for the test

The importance of Dart Impact Strength depends on the specific application of the material. Here are some examples:

1. Packaging: In the packaging industry, Dart Impact Strength is critical for materials used in shipping containers, such as corrugated boxes and bags. These materials are likely to be subjected to impact loads during transportation and handling, so they need to be able to withstand the impact without breaking or tearing.

2. Automotive: In the automotive industry, Dart Impact Strength is important for materials used in car interiors, such as dashboards and door panels. These materials need to be able to withstand impact loads from passengers and objects without cracking or breaking, which could lead to injury or damage to the vehicle.

3. Construction: In the construction industry, Dart Impact Strength is important for materials used in building envelopes, such as siding and roofing. These materials need to be able to withstand impact loads from weather events, such as hail or wind-blown debris, without cracking or breaking and compromising the integrity of the building.

4. Consumer goods: In the consumer goods industry, Dart Impact Strength is important for materials used in products such as toys, sporting equipment, and electronic devices. These materials need to be able to withstand impact loads from use and abuse by consumers without breaking or becoming unsafe to use.

Overall, Dart Impact Strength is an important property to consider in any application where the material is likely to be subjected to impact loads, and it is necessary to ensure the safety and durability of the product or structure.

What additives are used to make polyethylene flexible sheeting?

Polyethylene (PE) is a versatile and widely used polymer that can be processed into various forms, including flexible sheeting. To make polyethylene flexible sheeting, a variety of additives are used to modify its mechanical and physical properties. Here are some of the most commonly used additives for this purpose:

1. Plasticizers: These are low-molecular-weight compounds that are added to polyethylene to increase its flexibility and reduce its brittleness. Common plasticizers used in flexible sheeting include phthalates, adipates, and trimellitates.
2. Slip agents: These are additives that reduce the coefficient of friction between the surfaces of the polyethylene sheets, making them easier to handle and reducing the likelihood of sticking during processing. Examples of slip agents used in polyethylene sheeting include fatty amides, silicone oils, and erucamide.
3. Antioxidants: These are additives that protect polyethylene from degradation due to exposure to heat, light, and oxygen. Common antioxidants used in polyethylene sheeting include hindered phenols, phosphites, and thioesters.
4. Anti-blocking agents: These are additives that prevent the polyethylene sheets from sticking together or to other surfaces, which can occur due to the high surface energy of the material. Examples of anti-blocking agents used in polyethylene sheeting include talc, silica, and diatomaceous earth.
5. UV stabilizers: These are additives that protect polyethylene from degradation caused by exposure to UV radiation from the sun. Examples of UV stabilizers used in polyethylene sheeting include hindered amine light stabilizers (HALS), benzotriazoles, and benzophenones.
6. Colorants: These are additives that add color to the polyethylene sheeting, making it more aesthetically pleasing and helping to distinguish between different products. Colorants can be either organic or inorganic pigments, depending on the desired properties of the sheeting.

Overall, the combination of these additives and their concentrations can be tailored to achieve the desired mechanical, physical, and aesthetic properties of the polyethylene flexible sheeting.

Let's talk about adhesive tape that is touted to stick to plastic sheeting (polyethylene sheeting) that is commonly used in various industrial applications. The tape is designed to adhere to a variety of substrates, including metals, plastics, and other materials. However, in some cases, the tape may not stick well to polyethylene surfaces. There are several reasons why this could happen:

1. Low surface energy: Polyethylene has a relatively low surface energy, which means that it can be difficult for adhesives to bond to it. This can make it challenging for some tapes to adhere to polyethylene surfaces.

2. Surface contamination: If the surface of the polyethylene is contaminated with oils, dirt, or other substances, this can interfere with the ability of the tape adhesive to bond to the surface. Even small amounts of contamination can prevent the adhesive from forming a strong bond.

3. Incompatible adhesive chemistry: Certain fire retardant  tape are designed to work with a range of substrates, but it may not be compatible with all types of polyethylene. If the tape adhesive chemistry is not compatible with the particular type of polyethylene used, it may not adhere well to the surface. When slip or other processing aids are used, they make the surface of the polyethylene more slippery, so it slides through the manufacturing equipment more easily, and can be run much faster.  But it remains on the surface on a microscopic level, and makes it more difficult for tape to adhere well. By nature, the surface of the polyethylene is smooth and slippery, so many tapes do not adhere well, even when no processing aids are used.  

4. Temperature and humidity: The environment in which the tape is applied can also affect its ability to bond to polyethylene. If the temperature or humidity is too high or too low, this can interfere with the curing process of the adhesive, which can prevent it from forming a strong bond. The temperature of the tape when applied also affects the adhesion level. Tape should be applied at room temperature if possible.  The cooler the temperature, the lower the adhesion.  How smooth the finish is for each production run varies depending on temperature and humidity in our manufacturing facility. The smoother the finish,  the harder it is for the tape to adhere.

5. Pressure during Installation: Tape is pressure sensitive.  The more pressure used during installation, the higher the adhesion.  And the adhesion increases as the adhesive wets out on the surfaces being bonded.  The higher the initial pressure, the better the final bond.
   
   
6. Density Range:  The polyethylene has a density range.  At the lowest end of the range it is less smooth than at the highest end of the range. This varies with every batch of resin, and every production run.
   
   
7. The Solution: To improve the adhesion of certain tapes to polyethylene surfaces, it may be necessary to prepare the surface by cleaning it thoroughly and using a primer or other surface treatment to increase its surface energy. Additionally, selecting a different tape formulation or adhesive chemistry may be necessary if the tape is not compatible with the particular type of polyethylene being used.

As you can see, a number of factors may come into play as to why a tape is not sticking to polyethylene plastic sheeting.

20 Mil reinforced plastic sheeting is  a heavy duty high strength polyethylene film that is very resistant to tearing and overall damage. 20 mil reinforced polyethylene film, also known as RPE film, is a type of plastic film that is commonly used in a variety of industrial and construction applications, crawl space lining and encapsulation, aquaponics and anywhere a tough yet affordable poly film is required.

One of the most common uses for RPE film is as a vapor barrier in construction. When building a structure, it is important to prevent moisture from penetrating the walls and causing damage. RPE film is often used as a barrier between the foundation and the framing of a building to prevent moisture from entering the structure. The film is also used to seal the joints between walls and floors to prevent air and water infiltration.

Another common use for RPE film is as a liner in pond and lake construction. The film is used to create a barrier between the water and the soil to prevent leaks and seepage. RPE film is also used in the construction of landfills and waste containment areas to prevent the migration of liquids and gases.

Overall, 20 mil reinforced polyethylene film is a versatile and durable material that is used in a wide variety of applications to provide protection and moisture control. Its strength and durability make it ideal for use in construction, agriculture, and industry. The reinforcement in the film makes it a great barrier for containing liquids and gases, protecting the environment and the equipment.

Below is an example of a 20 mil RPE film:

 Ultra Scrim SR 20 WW is a 3-ply extrusion laminate combining two layers of linear, low density polyethylene and a high-strength cord grid. It compares to a 20 mil string reinforced poly.  It is specifically engineered to provide high strength and durability in a lightweight material.

 Multiple layers and cord reinforcement resists tears.

 Grommets, tie-downs, hems, zippers, drains, and 3-D custom shapes available.

 Flexibility and light weight allow for easy handling and quick installation

 Contains UV stabilization

 Chemically resistant to withstand exposure

 Low permeability greatly inhibits moisture transmission.

 Cold-crack resistance eliminates failures in extremely cold temperatures.

 rough reuse and fewer replacements. 

 Class A, ASTM E-1745 Standard Specifications for water vapor retarders used in contact with soil or granular fill under concrete slabs.

 COLORS: White

 Custom sizes up to 100’ x 200’ and custom fabrication are available to meet your exact

 USABLE TEMPERATURE RANGE: Minimum: -40ºF -40ºC Maximum: 170ºF 77ºC

Plastic sheeting (also know as poly sheeting or construction plastic) is a versatile and cost-effective material used widely in the construction industry. It is often used as a protective wrap to protect building materials, insulation, and other components during the construction process. It can also be used in the form of plastic sheeting wallpaper to provide a unique visual aesthetic in interior design. Plastic sheeting can also be used to line roofs and walls to create a waterproof barrier.

Plastic sheeting is made from polyethylene and other plastic materials and comes in a variety of thicknesses and sizes. It is strong, durable, and resistant to tears, punctures, and abrasions. Its waterproof properties make it ideal for use in outdoor construction projects, where it can provide protection from the elements. Plastic sheeting can also be easily cut and molded to fit any size or shape.

One of the most common uses for plastic sheeting in construction is as vapor barrier. This type of plastic sheeting is placed between the inside and outside of a building to prevent moisture from entering the building. This is especially important in areas with high humidity or in areas prone to flooding. Vapor barrier plastic sheeting can also help reduce energy costs by increasing the insulation of a building.

Plastic sheeting is also used as a waterproof barrier for roofs. It is used to line the roof and the walls of a building to create a waterproof barrier. This prevents water from entering the building and causing damage to the structure. It is also used in basements and crawl spaces to protect against water and moisture damage. Another use of plastic sheeting in construction is to provide a protective wrap around insulation and other materials. This helps to protect the materials from damage due to weather, dust, and other environmental factors.

Finally, plastic sheeting is also used in the form of plastic sheeting roofing underlayment. This type of plastic sheeting is placed between the roofing material and the roof decking to provide additional protection and insulation. This helps to reduce the amount of energy needed to heat and cool a building, resulting in cost savings for the building owner. Overall, plastic sheeting is a cost-effective and versatile material used in many aspects of construction. It is used to protect building materials, provide a waterproof barrier, reduce energy costs, and provide a unique aesthetic. With its many uses, plastic sheeting is a great choice for any construction project.

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Greenhouse coverings are a very important component of greenhouse construction and their choice can have a significant impact on the overall performance of the structure. The type of covering material selected can affect the environment inside the greenhouse, as well as temperature, humidity, light, and ventilation. There are several types of coverings to choose from, including glass, plastic, and fabric.

Glass was once the best choice for greenhouse coverings due to its ability to insulation plants from the elements. It is not a good choice if you live in freezing temperatures unless you have a heater or use additional heating. Thhe foe to glass of course is hail! It is considered durable in certain climates, and offered good light transmission.The key is keeping the glass cleaned on a regular basis. This covering is also available in various tints, allowing the user to customize their greenhouse environment. While glass makes for an aesthetically attractive greenhouse construction, it is also more expensive than other covering materials.

Plastic is another popular choice for greenhouse coverings. It is available in various styles and thicknesses, allowing the user to customize the insulation and light transmission properties of the covering. Plastic is also lightweight, making it easy to install, and it is less likely to break in stronger winds and may withstand some hail (depending on the thickness of the film). Greenhouse plastic comes in a wide range of thicknesses which will affect its longevity. 

Fabric greenhouse coverings are a more recent addition to the market, and they offer a variety of benefits. These lightweight and flexible materials can be easily customized to fit any shape and size, and they are also easy to install. Fabric coverings are considered energy efficient, reducing condensation and increasing temperature control. On the downside, fabric coverings are not as durable as glass or plastic and can be more difficult to clean.

When selecting a covering material for a greenhouse, it is important to consider the environment and climate you are trying to create. Each material has its own benefits and drawbacks, so it is important to choose a material that best suits the needs of the structure. 

Ultimately, the best greenhouse covering will depend on your individual needs and budget. Glass is a great option for those looking for a traditional, long-lasting covering, while plastic and fabric are better suited for those on a tighter budget. No matter what material you choose, it is important to research the covering material and understand its advantages and disadvantages before making a selection.

Don't Put A Barrier Between Us! Hello Global Plastics...I want to discuss...

HDPE is a very impressive polyethylene film. The following can be seen as the advantages or disadvantages. Here is the "con" perspective:

The Cons of Utilizing HDPE:

It is high flammability, sensitivity to stress cracking, inability to be biodegradable, inability to be composted, lack of resistance to oxidizing acids, lack of resistance to chlorinated hydrocarbons, and its high thermal expansion.

The advantages of using HDPE are as follows:

HDPE has many advantages, such as being cost-effective, able to withstand temperatures ranging from -148 to 176 degrees Fahrenheit, non-leaching, UV-resistant, dishwasher safe, resistant to most chemical solvents, and a stiff material.

Common Uses of High Density Polyethylene of HDPE

High-density polyethylene or HDPE is a commonly used petroleum thermoplastic and the most used of the three polyethylenes for a wide range of applications. If you look at this plastic under a microscope, you would see that it has a linear structure with few branches lending to its optimal strength/density ratio. As a result of its molecular makeup, this polymer shines brightest in applications where moisture resistance and cost-effectiveness are needed.

HDPE was created in the 1930s.  It was introduced to the market commercially soon after. While its higher density versions yield a more rigid result, HDPE can vary in flexibility. Low-density grades of the thermoplastic are less stiff and the high-density grades have equally high crystallinity. HDPE is a versatile thermoplastic that is widely used in a variety of applications. It is known for its durability, cost-effectiveness, and moisture resistance due to its linear structure with few branches. It was first introduced commercially in the 1930s, following its use in high-frequency radar cables during World War II. HDPE can vary in flexibility, with low-density grades being less stiff and high-density grades exhibiting high crystallinity.

Uses for HDPE:

HDPE (High Density Polyethylene) has a variety of common uses. Water bottles are a common introduction to the durable plastic, as its blow-molding properties make it perfect for food and beverage containers. Not only is it recyclable, but it is also UV-resistant, making it ideal for toys. HDPE is also great for chemical containers, such as laundry, shampoo, conditioner, motor oil, antifreeze, and recycling bins. For piping and outdoor applications, HDPE pipe grade sheet is used due to its increased molecular weight and UV-resistance, as well as its ability to withstand temperatures from -220 to 180 degrees Fahrenheit. This makes it ideal for many industrial applications.

Is HDPE a Good Plastic?

HDPE plastic is considered to be one of the most environmentally sound plastics available. It doesn't release any harmful fumes into the environment, and requires much less energy to produce than other materials such as steel from iron ore. Therefore, it is considered an Eco-friendly choice for many applications.

Is HDPE the Same as Plastic?

HDPE is a durable and strong plastic material, often utilized to create containers such as milk and water jugs. Its strength is such that a 60g jug can hold a full gallon of liquid without becoming distorted in shape. HDPE is distinct from other plastics and has many unique benefits.

What material is HDPE?

HDPE stands for High Density Polyethylene, which is a type of thermoplastic made from a string of ethylene molecules. It is known for its light weight and strength, and is commonly referred to as HDPE sheet plastic.

Is HDPE as strong as steel?

One may ask if HDPE is as strong as steel, to which the answer is no. While HDPE has an impressive ultimate tensile strength of 4,600 psi, Grade 304 stainless steel has an ultimate tensile strength of 73,200 psi. As such, steel is significantly stronger than HDPE when it comes to resistance to impacts and heavy loads.

How long will HDPE last?

The typical benchmark for HDPE life expectancy is 50 years; however, per the Plastics Pipe Institute, HDPE pipe used in municipal potable water systems can have a lifespan of over 100 years.

Do you want to learn more?

SolaWrap Greenhouse Polyethylene bubble plastic is thought to be and may be one of the best materials for covering greenhouses. This plastic is composed of a 17 mil (8.5 mm/430um) clear polyethylene plastic that guarantees 10 year U.V. protection, an R-value of 1.7, light transmission direct (350-1600nm) of 83%. It was a snow load of 120 lbs/feet ²) and a wind load of 100 mph or 43lbs/ft². This strength depends on the stability of the structure and its orientation. Learn more here.

This greenhouse plastic is very UV resistant!

What is the best thickness for greenhouse plastic?

That all depends. How often do you want to change out the plastic? Lighter less durable plastic coverings such as 3-4 mil may give you a year. Thicker films may last up to 4 years. SolaWrap is the only 17 mil clear covering. Lastly SolaWrap has some houses boasting 30 years without a single recover.

Maybe it's time we send you a free sample packet. You will receive a small square of SolaWrap, a connector, and a brochure. Get a hold of the film and see for your self why both commercial and back yard enthusiasts love SolaWrap. It just makes sense (cents)! 

 

 

 

If you have ever seen plastic sheeting burn, it goes up in flames and doesn't stop until it's completed its mission.

Let's define "fireproof" as the ablility to withstand fire or great heat.

Fireproof, flame resistant and fire retardant are often interchanged to mean the same thing.

Is there a plastic that is fireproof? 

Plastic in its natural state is not fireproof but it is possible to make plastic that is fireproof.  The secret is incorporating hydrated magnesium oxide or aluminum oxide, as well as phosphorus or bromine compounds, into low-density polyethylene. When exposed to fire, the compounds break down and absorb the heat energy, thus preventing the plastic from burning. The plastic doesnt burn, it melts. 

Watch the video HERE and see a side by side comparison of fire retardant/ fireproof plastic sheeting versus regular plastic sheeting.

PROVE IT! Some if not most states  require commercial establishments to comply with the use of fire retardant plastic sheeting for their events such as amusement parks, schools, haunted houses and so on. Global Plastic Sheeting issues product certification from independent fire testing labs for their fire retardant products. When the fire marshall shows up you will have the necessary documentation for your plastic sheeting.

Do you want to learn more?