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  • 3 leading manufacturers
  • 12 additional suppliers
  • 12 states and provinces
  • 25 related categories
  • 2 guide sections
Source: IQS Directory database snapshotOur Methodology
Leading manufacturers
Listings in this category's Leading placements, shown first in IQS sequence order.
Additional suppliers
The category's other listings, shown on its Additional Companies page. Counted by listing.
States and provinces
U.S. states and Canadian provinces where the listed companies are located.
Related categories
Other categories IQS links from this one as related products or processes.
Guide sections
Sections in this category's industry guide.
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Plastic Closures Companies and Manufacturers

Play Plastic Closure Informational Video
Plastic Closure Informational Video

IQS Directory provides a comprehensive list of plastic closure companies and suppliers. Use our website to review and source top plastic closure companies with roll over ads and detailed product descriptions. Find plastic closure companies that can design and engineer plastic closures to your companies specifications. Then contact the plastic closure companies through our quick and easy request for quote form. Website links, company profile, locations, phone, product videos and product information is provided for each company. Whether you are looking for manufacturers of plastic closure moldings, plastic closure plugs, plastic closure seals, or customized plastic closures of every type, this is the resource for you.

Suppliers located in OH, MA, CT +9 more states

Read the plastic closures guide
Contents (4 sections)

Leading Plastic Closures Manufacturers

Location

Showing all 3

Leading plastic closures manufacturers
Placement No.ManufacturerLocationContactActions
1

Precision Dip Coating LLC

Precision Dip Coating provides dip coating services for the manufacture of soft plastic parts such as cap plugs. hand grips, and more. Decorative and protective, our services are very cost effective and we have a proven track record for on time delivery and precise manufacturing. We can match any color you need, and offer services such as assembly, die cutting, packaging, and decorating.

LocationWaterbury, CT
View Manufacturer
2

Production Sciences

At Production Sciences, Inc., we pride ourselves on being pioneers in the realm of dip-molded plastics, sculpting a legacy of innovation and excellence that spans decades. As a collective force, we embody a commitment to precision, creativity, and unwavering quality in the realm of plastic manufacturing.

LocationChestertown, MD
View Manufacturer
3

Innovative Coatings, Inc.

Innovative Coatings is a manufacturer of plastisol dip molding and fluidized bed powder coatings of epoxy, polyolefins, nylon and vinyl. Our dip coatings are of FDA-approved and biomedical grades. Customers can also have a choice of color plus foam, gloss or texture finish. We draw from 40 years of experience in the plastic molding and protective coating industry. Let's talk about your project.

LocationMedway, MA
View Manufacturer
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Leading plastic closures manufacturers are listed first on this page, each with a website preview and a Request a Quote button on its row.

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Additional Plastic Closures Companies

The category’s other plastic closures companies are listed on their own page, with location, phone and website where each supplier provides them.

View 12 Additional Plastic Closures Companies

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Quick Answers

How many plastic closures manufacturers are listed on IQS Directory?
3 leading manufacturers and 12 additional suppliers.
Where are plastic closures manufacturers located?
The listed suppliers are in 12 states and provinces: Ohio (3), Massachusetts (2), Connecticut (1), Illinois (1), Indiana (1), Iowa (1), Maryland (1), Michigan (1), and 4 more.
How do I get quotes from plastic closures suppliers?
Select suppliers in the table and choose Request Quotes. IQS reviews your request and forwards it to every supplier you select.

Plastic Closures

2 sections

Plastic closures are plugs, caps, and seals that are protective devices for the ends of products to keep containers closed and their contents inside. Tubes, pipes, fittings, connectors, bottles, and jars all require closures to seal their openings. Common examples include bottle caps, camera lens caps, car plugs, and decorative caps. As dip molding and dip coating are relatively simple procedures and result in minimal waste, high volume quantities of products can be produced in a short space of time. Furthermore, as dip molding is an almost fully automated procedure, there are less labor costs to be considered.

Applications of Plastic Closures

Industries such as chemical, photography, agricultural, and packaging all use plastic closures for a number of applications. Common shapes of plastic plugs and plastic caps include round, square, and rectangular, but closures can be manufactured in any shape. As plastic is able to be adjusted according to color and texture, plugs, caps, and closures can be manufactured to match a customer’s specifications. Materials, colors, sizes, and required strength of closure are all aspects that should be considered when manufacturing plastic closures for a specific use.

While closures can be used for decorative purposes, the main reason for using a cap is for its protective qualities. Not only do closures keep contents in a container, they also prevent unwanted contact with outside elements. For items such as medicine bottles and pill containers or containers for sensitive chemicals, tamper evident caps and closures may be required. For other products that require a tighter seal, threaded closures can be manufactured using a mold designed for this purpose. Threaded closures are twist-on and create a watertight seal between the cap and the container.

Manufacturing Process of Plastic Closures

Plastic closures can be manufactured in a few different ways, including plastic injection forming and blow forming; however, the most common manufacturing process is dip molding, which uses a mandrel, or mold, dipped into molten plastic material. The mold is fully immersed into a molten polymer, such as plastisol or PVC, for a specific amount of time dependent on the desired thickness of the plastic. It is then removed slowly and allowed to harden. Heat treatment is used with some plastics to achieve the desired material results. When the plastic coating has fully solidified, it is removed from the mold and, if necessary, goes through further finishing techniques. Because of plastic’s elastic properties, secondary processing is typically not needed. For plastic closure manufacturing, a mandrel is produced with the exact dimensions of a container, part, or product requiring a seal, closure, or plug, and when dipped into the molten plastic, produces an exact fit.

 


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