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Processes

At Lone Star Chemical, we supply a full range of resins for pretty much every type of plastic production and manufacturing process.

image of injection molding

Injection Molding

Key to the production of of wire spools, bottle caps and automobile parts, injection molding is a process that enables fast, efficient production and produces recyclable products. Lone Star Chemical has been supplying thermoplastic resins to injection molders for more than 40 years.

Products used:

Nylon
Polyethylene
Polystyrene
Polypropylene
Polycarbonate

image of blow molding

Blow Molding

A relative of injection molding, blow molding is a process which produces a product with a cavity; whether injected with air or formed into two pieces that can be joined together.  Injection molding has allowed the plastic bottle to take over from heavier glass materials.

Lone Star Chemical sources the raw materials used to produce end products using blow molding equipment, and we've been sourcing and delivering those raw materials for four decades.

Products used:

Polyethylene
Polypropylene

image of rotational molding

Rotational Molding

Rotational molding (or rotomolding) is the process of injecting a resin into a heated mold that is then rotated to disperse the melted resin on the sides of the mold. Rotational molding is often used to provide stronger and more consistent wall strength.  Lone Star Chemical has a long history of sourcing and providing resins used in rotomolding.

Products used:

Polyethylene
Nylon
Polypropylene

image of plastic film

Film

Plastic film used in packaging, shrink wrapping and weatherproofing is produced using a form of extrusion where the extruded product is produced as a continuous membrane of a specified thickness and collected on a rolling tube as it exits the extruder.

Products used:

Polyethylene

image of extrusion moulded product

Extrusion

Extrusion is used to produce materials having a constant cross-section for the length of the item.  Lone Star Chemical has decades of experience sourcing the plastic resins best suited for extrusion processes.

Products used:

Polystyrene
Polypropylene
Polyethylene
Thermoplastic elastomers (TPE)
Thermoplastic polyurethane (TPU)

image of melt blown texture

Melt Blown

Melt blowing is a process akin to spray-painting, but with plastic instead of paint.  Melt blown products are produced by heating a resin to a certain temperature and delivered in a mixture of gases to disburse and distribute it over the outside of a mold, where it then hardens.

Products used:

Polypropylene

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