Hey,Bro,welcome to our blog, where we take a deep dive into the fascinating world of molding and explore the many applications of plastic, rubber and silicone molding. At Thesun Industry, we are committed to providing innovative solutions to a variety of industries, and we are excited to bring you new insights into the world of molding. In this blog, we’ll take a closer look at the different types of molding processes and materials and how they can be customized to fit a variety of applications. From automotive parts to medical devices, the versatility of molding is truly amazing.So friends let’s talk about the type of molding.

What Is Molding?

Molding processes typically involve the manipulation of rubber, plastic or silicone compounds to achieve a variety of shapes and functions. These materials are often used in combination to increase versatility and meet specific requirements. The goal of molding is to create seals or barriers that can expand, contract and return to their original shape, or to produce durable and flexible parts that meet specific specifications.

Elastomer molding begins with uncured rubber, which is typically subjected to a heat curing process. The end result is a “thermoset” material in which two components are irreversibly fused together. Although rubber and elastomers are natural materials, they can also be converted into synthetic materials through various processing methods and additive formulations.

Silicone, derived from silica sand, is known for its rich and adaptable chemical structure and can be used in a variety of processing techniques. It can be combined with thermoplastics and metals to create multi-functional products. Silicones are valued for their water resistance, heat resistance and proprietary formulations, some of which may be patented.

The Type of Molding:

The choice of molding process depends on the specific requirements of the part, component, project or concept. The terminology used in rubber, plastic and silicone molding usually reflects the manufacturing process.

Commonly used techniques include

  1. Blow molding

Similar to glass blowing, a heated tube is inserted into the material and the rubber/plastic/silicone is inflated by blowing air to fit the mold. After cooling, the object is removed. This method is ideal for producing large quantities of hollow, one-piece items.


Can produce hollow shapes required for specific applications.

  1. Compression Molding

Compression Molding is all about precision and strength. Here’s how it works: We use high pressure to mold rubber into shape between sturdy plates. This method is perfect for creating complex parts or products with large cross-sections.

We then cut away any excess material, leaving you with a durable, high-quality product. Our process, called vulcanization, ensures your parts are strong and long-lasting. And here’s the best part: Compression molding is cost-effective, especially for smaller quantities. So whether you need medium or large-sized parts, we’ve got you covered.


– Lower costs with existing tooling

– Perfect for smaller quantities

– Ideal for medium- and large-sized parts

– Can handle even the toughest rubber materials

  1. Extrusion

Extrusion is a common method for making long, hollow materials such as pipes or tubes. It works like this: Instead of injecting material into a special cavity, we push it directly through a die.

The result? A versatile long tube that can be customized for a variety of uses. From drinking straws to agricultural feeding tubes, the possibilities are endless.

The advantage

– Create unique tube shapes for a variety of applications

  1. Injection Molding (Hot Runner)

Injection Molding employs cutting-edge technology to create precise, uniform components. Here’s how it works: A screw nozzle continuously feeds material from a barrel using a pump.

This method is ideal for high quantities of small- to medium-sized items, ensuring efficiency and consistency. Plus, it’s perfect for intricate inserts and tight tolerances.

With its ability to produce flawless parts without human intervention, injection molding is a top choice for medical applications. But its versatility extends far beyond healthcare – think electronics, automotive, and more.


– Streamlines production with no need for pre-forms

– Minimizes human handling for superior quality control

– Offers cost-effective unit pricing

– Speeds up the production process

  1. Cold Runner Injection Molding

Advanced Cold Runner Injection Molding revolutionizes manufacturing with its innovative process. Here’s how it works: Liquid silicone, containing a platinum catalyst, is expertly mixed and injected into a closed, thermoset mold. The result? High-quality parts with rapid cure times, saving both time and money compared to traditional methods.

This cutting-edge technology is a game-changer for the medical industry, offering a closed system that minimizes contamination risks. It’s perfect for producing micro-components and objects of various sizes.


– Perfect for high-volume production needs

– Customizable colors to match any design

– Speedy cure times for faster turnaround

  1. Revolutionary Rotational Molding

Revolutionary Rotational Molding also known as rotomolding, spins innovation into action. Unlike traditional molding methods, rotomolding rotates the mold, coating it from the inside to craft large, hollow objects with precision. While it may be slower, its centrifugal force ensures uniform coatings and minimal waste, making it ideal for creating tanks and other large-scale items.


– Cost-effective for specific applications

– Versatile manufacturing capabilities

  1. Innovative Transfer Molding

Innovative Transfer Molding a game-changer in molding technology, revolutionizes the manufacturing process. Utilizing a unique system, rubber is transferred into the mold via a piston-powered gate, ensuring precise control and minimal waste. With its ability to produce micro-components with tight dimensional tolerances, transfer molding offers unparalleled efficiency and cost-effectiveness.


– Streamlined production with fewer pre-forms

– Precision control for micro-component manufacturing

– Customizable color options available

In summary,the versatility of plastic, rubber and silicone molding is truly remarkable, as these processes and materials can be tailored to a wide range of applications. From intricate aerospace components to consumer products in the electronics industry, molding plays a critical role in shaping the modern world. At Thesun Industry, we are committed to providing high quality molding solutions that meet the unique needs of our customers. Our expertise in molding processes and materials allows us to provide innovative and cost effective solutions to various industries.

We invite you to share your thoughts and experiences with molding in the comments section below. Whether you have insights to add or questions to ask, we value your input and look forward to engaging with you. Stay tuned for more insightful content on our website as we continue to explore the wonder of molding and its impact on various industries. Thank you for joining us on this journey of discovery, and we hope to inspire new ideas and innovations in the world of molding.If you have question,please contact us!