No Job Is Too Big or Too Small!

Custom Plastic Caps - Custom PVC Caps - Custom Plastic End Caps

Carlisle Plastics Company expertly manufactures PVC plastic caps tailored to non-standard shapes, sizes, and custom specifications. All our plastic caps are fully customizable—covering everything from unique shapes to specific colors, dimensions, and thicknesses. Whether you need a custom shape, size, or specific material properties—we deliver more than just off-the-shelf solutions.

What “Custom” Really Means to Carlisle Plastics Company

Beyond shape: While “custom” typically refers to odd shapes or non-standard sizes, it also includes:

  • Length and thickness: Specify cap wall thickness and height or length for a perfect fit.
  • Color choice: Pick from our extensive range of standard stock colors or request a precise custom color match.
  • Durometer (hardness): From soft and flexible to firm and tough, we can match your requested material flexibility.
  • Material Additives: UV stabilizers, flame retardants, Food Grade (FDA-approved ingredients), phthalate-free plasticizers.

Customizing standard shapes: Even our standard cap styles (round, rectangle, square, etc.) can be fully customized in all the above areas to your requested specifications. Need a round cap in a specific thickness and durometer, in Teal? Absolutely possible!

Why Choose Carlisle Plastics Company for Custom Caps?

  • Versatile tooling availability: For many standard dimensions and common-sized shapes, we already have stock production dies—so you’ll enjoy no tooling or setup charges in most cases.
  • Tailored options—not one-size-fits-all:
    • Color matching: Match Pantone, RAL, customer-submitted swatches, or any unique shade.
    • Durometer (flexibility) options: From 55 (soft) to 90 (sturdy) Shore A
    • Dimensional control: Custom wall thickness, height/length, and diameter to ensure the best seal, fit, or aesthetic.
  • Value-added services or secondary operations: Multiple options available: imprinting, hot‑stamping, hole punching, slicing, and special packaging to meet all your production needs.
  • Flexible quantities and price breaks – NO MINIMUM ORDER QUANTITIES: From custom prototype orders, small partial setup options, to production orders in the millions, we can work with your needs.

Applications & Industries Served

Typical uses include:

  • Decorative finishing end caps and branding caps
  • Protective end caps for tubing, pipes, bolts, screws, and rods
  • Functional components (e.g., boots, spouts, plugs)
  • Caps for electronics, circuit boards, machinery, furniture, and more

We’ve supplied high‑precision caps for industries such as medical, aerospace, automotive, telecommunications, agriculture, HVAC, robotics, and beyond.

Getting Started

  1. Identify what you’re looking for:
    • What shape? (Standard or unique)
    • Which color? (Stock or custom)
    • Required flexibility/hardness (durometer)?
    • Desired thickness, length, and tolerances?
    • Any additional features like stamping, branding, or packaging?
  2. Request a Custom Cap Quote: We’ll review your requirements, provide a detailed quote, and move quickly to sampling and production. Use our online form here or email us at sale@nomoplastic.com. Include any drawings or photos that show your specifications.

Why Carlisle Plastics?

  • ISO 9001:2015 Certified quality
  • Family-owned with over 65 years of experience
  • US-based manufacturing and rapid turnaround
  • Flexible quantities with zero minimum order quantities

Favorite Feedback from Customers

“Thank you again for your continued support… your product plays a big role in their design, and we love the product, and so do the customers.” – Kay

“Thank you so much for taking a look at this and working hard to make it work. We will certainly think of you for any future plastic needs we have.” – Kyle

“First off, you’re awesome!” – Jimmy

One to Millions… No Quantity Is Too Small or Too Large!

Plastic Round End Caps Free Quote