Virgin Polyethylene Resin Supplier

Birch Plastics offers a wide variety of Polyethylene Virgin resin designed for Injection molding, Extrusion, Blow Molding and Film manufacturing.

Experience the Birch Plastics Difference
When precision, performance, and reliability are paramount, choose Birch Plastics for your virgin polyethylene needs. Experience firsthand the difference that American-made quality, meticulous lab-testing, and reliable distribution can make for your injection molding, extrusion, blow molding, and film manufacturing processes. Lean more about LLDPE Injection Molding Resin, and let Birch Plastics be your HDPE Resin Supplier, or LDPE Film Resin Distributor.

Explore our virgin polypropylene offerings.

Discover our certified recycled resin solutions.

Need a custom blend? Learn about our toll compounding services.

Get in touch for specs and pricing.

Virgin High-Density Polyethylene (HDPE) Plastic Resin Pellets we offer

Material Type

Application

Form

Melt Index
(ASTM D1238)

Density
(ASTM D1505)

High-Density Polyethylene (HDPE)

Injection Molding

Pellets

5.0

0.955

High-Density Polyethylene (HDPE)

Injection Molding

Pellets

6.0

0.960

High-Density Polyethylene (HDPE)

Injection Molding

Pellets

20.0

0.955

Virgin High-Density Polyethylene High-Molecular Weight (HDPE-HMW) Plastic Resin Pellets we offer

Material Type

Application

Form

Melt Index
(ASTM D1238)

Density
(ASTM D1505)

High-Density Polyethylene (HDPE - HMW)

Film

Pellets

0.05

0.950

High-Density Polyethylene (HDPE - HMW)

Pipe

Pellets

0.07

0.955

Virgin Low-Density Polyethylene (LDPE) Plastic Resin Pellets we offer

Material Type

Application

Form

Melt Index
(ASTM D1238)

Density
(ASTM D1505)

Low-Density Polyethylene (LDPE)

Film

Pellets

1

0.920

Low-Density Polyethylene (LDPE)

Film

Pellets

2

0.920

Low-Density Polyethylene (LDPE)

Injection Molding

Pellets

20

0.920

Virgin Linear Low-Density Polyethylene (LLDPE) Plastic Resin Pellets we offer

Material Type

Application

Form

Color

Melt Index
(ASTM D1238)

Density
(ASTM D1505)

Linear Low-Density Polyethylene (LLDPE)

Film

Pellets

Natural

1.0

0.920

Linear Low-Density Polyethylene (LLDPE)

Film

Pellets

Natural

2.0

0.920

Linear Low-Density Polyethylene (LLDPE)

Injection Molding Compounding

Pellets or Powder

Natural

20.0

0.920

About Linear Low-Density Polyethylene (LLDPE)

Linear low-density polyethylene (LLDPE) is a linear polyethylene, with significant numbers of short branches, commonly made by copolymerization of ethylene with longer-chain olefins.

Molecular Structure

LLDPE (Linear Low-Density Polyethylene): LLDPE has a molecular structure that combines linear and branched chains. This imparts properties that fall between those of HDPE and LDPE.

Mechanical Properties

LLDPE combines some of the stiffness and strength of HDPE with the flexibility of LDPE. It often exhibits good puncture resistance.


Density

LLDPE falls between HDPE and LDPE in terms of density, typically ranging from 0.915 to 0.925 g/cm³.



Processing Methods

LLDPE is suitable for various processing methods, including extrusion and injection molding.


Common Applications

LLDPE is often used in packaging films, injection molding, stretch wraps, garment bags, pouches, can liners and other flexible applications where a balance of strength and flexibility is desirable.

About Low-Density Polyethylene (LDPE)

Low-density polyethylene (LDPE) has a highly diverse chain structure with a combination of both small and large side chains. The density of LDPE ranges between .910-.940 kg/ m3.  LDPE exhibits high flexibility and retention of properties at low temperatures. Low-density polyethylene (LDPE) offers excellent corrosion resistance and low moisture permeability. LDPE can be used in applications in which corrosion resistance is of utmost importance while stiffness, high temperatures and structural strength are not.  LDPE is a highly flexible type of polyethylene. It is used for strong, flexible consumer items such as screw caps and lids for bottles. LDPE is also commonly found in consumer packing, bags, bottles and liners.

Molecular Structure

LDPE has a lower molecular weight and a branched molecular structure. This branching contributes to a lower density and more flexible material than HDPE.

Mechanical Properties

LDPE is more flexible and has lower tensile strength than HDPE. It is less rigid and more resilient.


Density

LDPE has a lower density than HDPE, usually ranging from 0.910 to 0.940 g/cm³.


Processing Methods

LDPE is often processed using extrusion, injection, and blow molding methods.

Common Applications

LDPE is used in applications such as plastic bags, films, thread protectors, squeeze bottles, and flexible packaging.

About High-Density Polyethylene (HDPE)

HDPE is the sturdiest and most inflexible type of polyethylene within polyethylene applications. Its sturdy and moderately robust character can be used for a wide range of applications. HDPE is defined by having a density greater than or equal to .941 g/cm3. High-density polyethylene (HDPE) represents the most common portion of the polyethylene applications. HDPE offers excellent impact resistance, lightweight, low moisture absorption and high tensile strength. Additionally, HDPE is also nontoxic and non-staining.

Molecular Structure

HDPE (High-Density Polyethylene): HDPE has a high molecular weight and a more linear molecular structure. This results in a high-density and relatively stiff material.

Mechanical Properties

HDPE is known for its high tensile strength, stiffness, and resistance to impact. It is a rigid and tough material.

Density

HDPE: As the name suggests, HDPE has a high density, typically ranging from 0.941 to 0.965 g/cm³.


Processing Methods

HDPE: HDPE is commonly processed through processes like injection molding, extrusion, and blow molding.

Common Applications

HDPE includes bottles, containers, pipes, and packaging materials. Its rigidity and strength make it suitable for applications where structural integrity is essential.