logo

Rubber Extrusion Benefits and Materials

Why Rubber Extrusions are better than molds?

Both methods are widely popular in the rubber industry. Yet, they have some suitability issues. In this section, you will learn in which case the rubber extrusion process is a better option.

Reason #1. Cost-effective and Faster Production for Long Runs

As you are aware, rubber extrusion is a continuous process. When you start the gadget, it will continuously manufacture lengthy rubber profiles. In contrast, you must push the molten rubber into the mold for each product in rubber molding. As a result, the rubber extrusion process is both cost-effective and efficient.

Reason #2. The Most Efficient Method for Simple Shapes

The rubber extrusion method is suitable for a moderate level of complexity or simplicity in the particular product’s design. It can be applied to make continuous seals, gaskets, and tubing. On the other hand, rubber molding is ideal for creating intricate rubber product shapes.

Reason #3. Almost Zero Material Waste

The rubber extrusion method produces almost zero waste. The rubber extruder pushes the molten rubber into the die, producing long rubber profiles. Later, you can cut them to length based on your needs.

Reason #4. Ability to Make Custom Lengths

As already said, rubber extruders produce long rubber profiles. There are no specific lengths for this method. Instead, you can choose it based on your project needs. On the other hand, rubber molding can not offer this benefit.

Reason #5. Less Tooling Cost

Rubber extrusion is a significantly cheaper technology than rubber molding. You’ll also require less money for tooling. However, rubber molding is appropriate for intricate designs. As a result, the tooling design is likewise pricey.

Which Rubber materials are Extrudable?

Several types of rubber are employed in the rubber extrusion process. Five are the most popular and widely used in making various rubber products.

#1. Natural Rubber

Natural rubbers come from rubber trees, although they need further processing after extraction. These rubbers are widely prevalent because they have excellent mechanical resistance, shock absorption, and high elasticity. Natural rubber is not suitable for chemical resistance.

#2. EPDM Rubber

EPDM rubber is one of the most popular synthetic rubbers. Its structure has three different polymers: ethylene, propylene, and diene monomer. EPDM offers excellent weather resistance, so people mostly prefer it for weather stripping.

#3. Neoprene Rubber

Neoprene is another popular name for synthetic rubbers. This rubber material is ideal for chemical, oil, and abrasion resistance. People mostly use this rubber for sealing gaskets and hoses. Neoprene may not work as expected under UV light. Besides, this rubber is comparatively more expensive than other types.

#4. Nitrile Rubber

Nitrile rubber is also resistant to oils and certain chemicals but may break in strong acids and bases. It is a popular option for fire-resisting applications and offers excellent strength, elasticity, and temperature resistance.

#5. Silicone Rubber

Silicone is one name for extreme temperature applications. The typical temperature rating ranges from -60°C to +230°C, making silicone the best option for extreme conditions. Besides, this rubber also works excellently in fire. People mostly use it to make hoses, seals, and gaskets.

Leave a Comment

Your email address will not be published.

Get an instant quote from our most experienced consultants.

Get a Free Estimate Today