In the world of industrial component manufacturing, extrusion molding is a highly efficient and versatile process widely used to produce continuous rubber and plastic products such as sealing strips, tubing, and custom profiles. With its ability to create long, uniform shapes in a cost-effective way, extrusion molding has become an essential technology across many industries.

At DXTSEALS, we provide custom extrusion molding solutions tailored to meet diverse performance requirements, material specifications, and structural complexities.

What Is the Extrusion Molding Process?

Extrusion molding is a continuous manufacturing process in which rubber or plastic material is forced through a shaped die, creating products with a consistent cross-sectional profile. After extrusion, the material is cooled, cured, or vulcanized, depending on the application and material used.

Main Steps of the Extrusion Process:

1️⃣ Material Feeding – Thermoplastic or elastomeric compounds are loaded into the extruder
2️⃣ Heating & Mixing – The material is heated and uniformly mixed as it moves through the screw barrel
3️⃣ Shaping via Die – The molten material is pushed through a custom-designed die to form the desired shape
4️⃣ Cooling / Curing – The extruded product is cooled (for plastics) or vulcanized (for rubber)
5️⃣ Cutting / Spooling – Products are cut to length or rolled for storage and transport

Key Advantages of Extrusion Molding

1. Continuous, High-Speed Production

✔ Ideal for producing long lengths of consistent products
✔ Reduces production time and cost for bulk orders

2. Cost-Efficient Manufacturing

✔ Lower tooling and setup costs compared to injection molding
✔ Minimal material waste and high material utilization

3. Customization & Versatility

✔ Supports complex cross-sectional profiles
✔ Compatible with a wide range of rubber and plastic compounds
✔ Co-extrusion available for multi-material or multi-color products

4. Flexible Post-Processing Options

✔ Trimming, punching, notching, adhesive backing, and cutting available
✔ Custom packaging, labeling, and coiling

Common Materials for Extrusion Molding

DXTSEALS offers extrusion services using a variety of materials depending on performance needs:

• EPDM – Weather, UV, and ozone resistant

• NBR (Nitrile) – Oil and fuel resistant

• Silicone – Excellent flexibility, temperature, and food-grade properties

• PVC – Economical and corrosion resistant

• TPU/TPE – Elastic, durable, and abrasion resistant

• Neoprene – Good flame and chemical resistance

Extruded Product Applications

1. Sealing Strips

✔ For automotive doors, windows, and industrial enclosures
✔ Ensures airtight, watertight, and dustproof sealing

2. Tubes & Hoses

✔ For fluid transport, pneumatic, and vacuum systems
✔ Available in various diameters, colors, and wall thicknesses

3. Custom Profiles

✔ Gaskets, bumpers, edge trims, and cable covers
✔ Designed for electrical, mechanical, or aesthetic applications

4. Co-Extruded Components

✔ Combines multiple materials or hardness levels
✔ Adds features like integrated sealing lips or color-coded layers

Why Choose DXTSEALS for Extrusion Molding?

At DXTSEALS, we deliver precision and performance with every extrusion project:

✅ Custom die design for complex and industry-specific profiles
✅ Material selection guidance to meet environmental and mechanical demands
✅ Strict quality control for consistent cross-sections and tolerances
✅ Fast production cycles and flexible order volumes
✅ One-stop solution from prototyping to bulk manufacturing

Conclusion

Whether you need flexible sealing strips, durable tubing, or intricate custom rubber or plastic profiles, the extrusion molding process is your go-to solution for cost-effective, continuous, and high-quality production. With advanced capabilities and deep expertise, DXTSEALS is here to support your extrusion needs with speed and precision.