Plastic Caps and Flexible Protective Coverings
At Carlisle Plastics Company, we specialize in the manufacture of high-quality, dip-molded plastic caps and flexible protective coverings. With decades of experience serving industrial clients worldwide, we offer a full line of standard cap shapes, custom-molded solutions, and value-added services to meet even the most specialized needs.
Whether you’re protecting parts in transit, masking during finishing, or crafting component solutions for medical or automotive applications, we’re here to help—with fast turnarounds, low tooling costs, and custom prototyping services.
Standard Plastic End Cap Styles
We offer a wide range of standard dip-molded plastic end caps in the most commonly requested shapes and sizes. All of these products are manufactured using a variety of flexible PVC-based plastisol, which offers durability, chemical resistance, and much more, all of which are available in various durometers from a soft, flexible rubber-like plastic up to a fairly rigid feel.
We maintain an extensive inventory of standard dies, which means no tooling or setup fees for most common sizes and shapes.
Round End Caps
Our most versatile option, round end caps are ideal for sealing tube ends, protecting threaded studs, and covering exposed rods or fittings. They’re available in a wide range of diameters and lengths and provide a snug, protective fit.
Hex End Caps
We offer a comprehensive range of press-fit solutions to suit hex-shaped bolts, nuts, and fasteners. They’re commonly used for masking during painting or plating, and for preventing corrosion or debris intrusion in mechanical assemblies.
Rectangular End Caps
Used for rectangular tubing, brackets, or exposed structural pieces, these caps help reduce wear, prevent injury, and give your finished product a cleaner look. They’re popular in shipping protection, furniture, displays, and equipment design.
Square End Caps
Square end caps provide an easy, friction-fit solution for square tubing or posts. Often used in manufacturing, furniture, and fencing applications, they’re available in multiple sizes and wall thicknesses.
Round End Caps with Pull Tabs
Our tabbed round caps are designed for easy removal, even when gloves are used or space is tight. These are a great fit for applications requiring easy or frequent capping and uncapping, such as during assembly or testing.
Flat & Rectangle Plastic Caps
These caps are ideal for applications requiring low-profile coverage or protection of flat-edged parts and rectangular fittings. They offer a clean, flush appearance and can be used in various assembly, storage, or display scenarios.
Their flexibility and durability make them a reliable choice for protecting surfaces from impact, contamination, or wear during transport or use.
Custom Plastic Cap Products to Meet Your Custom Specifications
In addition to our standard plastic end cap offerings, Carlisle Plastics Company manufactures custom plastic caps and components designed to meet your exact requirements. From unique shapes and wall thicknesses to custom colors and finishes, we tailor each product to your needs.
Our in-house, hands-on customer service team works closely with your specifications to ensure consistent quality, fit, and function from concept through production.
Learn more about our custom plastic end cap options.
Flexible and Semi-Rigid Bellows, Boots, Steps, and Other Shapes
Carlisle Plastics Company offers a wide range of flexibility options for all parts such as: bellows, boots, steps, and other custom-molded shapes for specialty applications. These components are ideal for sealing moving joints, shielding components from contaminants, or allowing controlled movement within an assembly.
Whether you’re designing for aerospace, medical devices, or industrial machinery, we manufacture custom plastic bellows, steps, and protective boots engineered for durability, flexibility, and performance. Leveraging precision dip molding techniques and tooling options, we handle everything from low-volume prototypes to large-scale production runs.
Caps with Pull Tabs for Easy Removal
Our caps with integrated pull tabs are engineered for efficiency and ease of use. These designs allow for quick removal without tools, making them ideal for assembly lines, quality control stations, or frequent part access.
They maintain the same protective qualities as standard caps while offering enhanced functionality for high-turnover environments. Choose from a range of colors and sizes to match your workflow needs.
Medical Equipment Tips, Protective Caps, and Covers
Carlisle Plastics Company produces specialized caps and tips for protecting medical devices and healthcare equipment. These parts provide soft, secure protection for sharp edges, probes, tubing, and other sensitive components.
With material options like FDA-approved ingredients as well as special packaging services, our products deliver outstanding quality and versatility. They are available in a wide range of colors, thicknesses, and hardness levels—giving you the flexibility to choose the ideal solution for every application.
Handles & Grips (For Insulation and Comfort of Use)
Our plastic handles and grips provide comfortable, ergonomic solutions for tools, instruments, and control components. Designed for both insulation and usability, these products offer a secure, cushioned grip in demanding environments.
Available in a variety of colors, lengths, and diameters, our grips are ideal for industrial machinery, hand tools, and medical equipment.
Product Prototyping & Development Assistance
We offer full prototyping support to help you bring new product concepts to life. With rapid tooling and low setup costs, we make it easy to test, refine, and finalize your concept before full-scale production.
From initial samples to first-article approval, our team is here to support your product development process every step of the way.
Protective Caps, Covers & Dust Covers for Glass and Painted Surfaces
Our protective caps and covers are ideal for safeguarding glass, painted surfaces, and delicate components during transit, assembly, or storage. These soft, flexible products help prevent scratches, chips, and contamination.
Used across industries like appliances, furniture, automotive, and electronics, our caps provide essential protection from impact, debris, and wear.
Caps & Covers for Electronics and Mobile Equipment Holders
Carlisle Plastics Company manufactures specialized caps and covers for notebook computers and electronic device holders, including those used in trucks, crash carts, and mobile workstations. These solutions are tailored for durability and ease of use.
They help protect sensitive electronics from dust, impact, and accidental contact while providing a professional, finished appearance in demanding environments.
Secondary Operations
In addition to molding, we provide a wide-range of finishing and secondary operations to meet your part’s specific requirements:
- Hole Punching
- Cutting and Slitting
- Pad Printing
- Hot Stamping
- Special Packaging
These value-added services allow us to deliver fully finished parts ready for assembly, branding, or final use.
Learn more about our secondary operations services.
Request a Quote or Sample
Whether you need a handful of plastic caps or a full production run of a custom made cover or plastisol coating, Carlisle Plastics Company is here to help. Reach out to our team for expert support, fast quotes, and dependable production timelines. Contact us today!