Not Just Plastic: How Custom Rubber Parts Solve Problems That Plastic Can’t

Have you ever faced a design challenge where plastic parts fell short? Maybe they cracked under pressure, lacked grip, or failed to seal properly?

You’re not alone. Many engineers and designers start with plastic for its versatility and cost-effectiveness—but soon discover that certain applications demand more: more flexibility, more durability, more resistance to extreme conditions.

That’s where custom rubber parts come in.

While our legacy has been built on precision plastic components, we’ve expanded our expertise to include high-performance rubber manufacturing since year 2006—solving problems that plastic alone cannot:

🔹 Where Plastic is Brittle → Rubber is Flexible
Rubber parts absorb shock and vibration, making them ideal for protective seals, dampers, and grips.

🔹 Where Plastic Slips → Rubber Grips
Superior traction makes rubber perfect for buttons, handles, feet, and anti-slip surfaces.

🔹 Where Plastic Leaks → Rubber Seals
From IP-rated enclosures to fluid systems, rubber provides reliable sealing even under compression or temperature shifts.

🔹 Where Plastic Degrades → Rubber Endures
Silicone, EPDM, Nitrile, and other rubbers resist UV, ozone, chemicals, and extreme temperatures (–60°C to 300°C).


But Here’s the Best Part: You Don’t Have to Choose.

Many of our most successful projects combine plastic structural components with rubber functional elements—overmolded grips, integrated seals, tactile buttons—all under one roof.

We offer end-to-end support:

  • 🛠️ Design for Manufacturing (DFM) for both plastic and rubber
  • 📦 Tooling, prototyping, and production
  • ✅ Material selection guidance—so you never over-engineer or under-specify

Ready to Explore Whether Rubber Is Right for Your Application?

We help innovators navigate the transition from plastic to rubber—or find the perfect hybrid solution.

👉 Learn more about our expanded rubber manufacturing capabilities on our website:
www.rilongsilicone.com

Need High Quality Injection Molded Parts?

If you have a great idea, we can help bring it to life. We’ve done this before and enjoy becoming partners throughout product creation. From advising you through the mold sourcing process to delivering your new product to customers, we want to work with you every step of the way.

A Never-Ending Pursuit to Get Better

Our strength is our flexibility and adaptability. We combine our experience with your ideas to bring out products that are one step into the future.

Quality Defect-Free Production

Our vision is to not only deliver products that exceed customer expectations but also to help them reduce costs by working with them in the mold design fields. 

On-Time Order Delivery 

We desire to ensure that customers receive the goods accurately and complete delivery in the shortest possible time.