Major Processes of Manufacturing Rubber


When providing rubber products, multiple manufacturing processes can be used.  Every manufacturing process has its advantages in making an ideal type of product.  When you know the manufacturing processes, you can be in a position to understand the implications on costs and tradeoffs.  Molding, calendaring, latex dripping and extrusion are the most common rubber processing methods.

Extrusion commences with feeding a vulcanized compound to an extruder.  A dye carries the extruder forward.   The dye is special in manufacturing and assists in shaping the rubber.  The compound is forced into the opening of the extruder by the process’ pressure, after putting the dye.  The extruded product is vulcanized for it to become useful.  Every rubber compound ought to have a cure package that is usually blended before vulcanization.

Latex dripping includes dipping thinly walled molds into latex and slowly withdrawing them.  You can re-dip the product in the latex with an aim to increase its thickness.  The product is vulcanized when the dipping process occurs.  The needs of post-treatment varies with the ppr5oduct’s needs.  Bladders, rubber gloves, balloons, tubing, and grips can be made using this method.

Molding is comprised of three processes.  These are transferred molding, compression molding, and injection molding.  The least expensive and oldest method is compression molding.  It is suitable for products that have a poor flow, and those that have a high viscosity.  This process on the other hand, consumes a lot of time.  Some of the products that result from this method are wristbands, electrical insulators, seals, silicon, and O-rings. You can also read more about rubber manufacturing by visiting the post at

Transfer molding at helps in minimizing the limitations of compression molding.  The process begins with a blank chamber that moves rubber to other chambers.  In the starting stage, rubber is heated, therefore making it possible to move to other channels.

Finally, there is injection molding.  The injection unit and the press unit acts as two distinct entities with separate controls.  An extruder unit is programmed in a certain way to serve several passes.  The result of this is short injection processes.  This minimizes handling blanks in the process.\ This eliminates the chances of handling blanks in the process.  This can easily fill up hard cavities as well as flow channels.

Calendaring involves forcing softened materials to the middle of rotating rollers.   Rollers compress the materials.  The product’s thickness thus becomes determined by the gap between the cylinders.  Calendaring is more expensive when compared to other processes, click to know more!

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s