At Sinclair & Rush, our Flexible PVC Caps are one of our most popular and longest-standing product ranges—manufactured since the 1950s. With decades of experience, we've become industry pioneers in Dip Moulding, continually refining our manufacturing methods and materials to deliver exceptional quality at competitive prices.

Our Flexible Caps are widely used across industries to protect, seal, and finish open ends or sharp edges—commonly on tubes, rods, and fittings. They're flexible, durable, and available in a variety of shapes, sizes and colours to suit your needs.

🛠 Our Standard Cap Range Includes:

• Round Caps (also available phthalate-free)

• Square & Rectangular Caps

• Pole & Pull Tab Caps

• Angle & Shaped Vinyl Caps

Pull Tab Caps, for instance, are ideal for protecting operators’ hands from sharp or hot components on machinery. We also offer high-temperature-resistant versions for use in harsher environments. With tools already in place for this range, we can offer hundreds of shapes and sizes for rapid turnaround.

To support this, Ellie in our Marketing Team has created a series of helpful product review videos, offering a close-up look at the features and benefits of each style. You can find these on our YouTube channel or directly through the product category page on our website.

🧪 How Are Flexible PVC Caps Made?

Our caps are produced using a process known as Dip Moulding. This involves heating metal mandrels and dipping them into liquid plastisol (PVC). The PVC solidifies on contact, is cured in ovens, and then removed once cooled. This method is perfect for both low- and high-volume production, using various machine sizes and dip lengths.

✅ Benefits of Dip Moulding:

• Quick & cost-effective prototyping

• Option for phthalate-free PVC

• Durable, flexible products with a premium finish

• Wide range of colours, textures and materials

• Low tooling costs

• Short lead times on custom jobs

At our factories in Rochester and Maidstone, Kent, we also offer in-house secondary processing, allowing for custom finishing services such as:

• Printing

• Double Trimming

• Punching

• Bagging

PVC Dip Moulded Caps offer the ideal balance of performance, flexibility, and affordability, making them a go-to solution for masking, protection, and finishing in a wide variety of applications.

👉 Explore the full range here: Flexible PVC Caps