5 Types of Plastic Molding Process
                     5 Types of Plastic Molding Process
Plastic molding involves manufacturing plastic parts by 
pouring liquid plastic into a mold. Various plastic molding 
methods and techniques are used to make various plastic 
parts and components. Even though injection molding is 
the most common process, a few other processes still stand 
out. Plastic molders use state-of-the-art equipment and 
tools to build complex parts effectively. Considering plastic 
is the predominantly used material worldwide, five plastic 
molding processes can help you achieve your desired 
designs.
CALL US: (585) 272-6170 Apollooptical.c
om
Compression Molding
This polymer molding process involves feeding heated plastic into a heated 
mold. This process is followed by closing the mold and compressing the 
plastic into distinct shapes. The machine will remove the end product from 
the mold after cooling down. The curing process keeps the finished parts in 
great shape and structural integrity. Compression molding uses strong 
parts to manufacture parts and components for various applications in the 
automotive industry.
CALL US: (585) 272-6170 Apollooptical.c
om
Extrusion Molding
Extrusion molding is a unique process considering it extrudes molten 
plastic into a die. This interesting process achieves the final shape of the 
end product from the die and not the mold's shape. This technique applies 
to making parts that need continuous lengths and identical cross-sections. 
It can also make hollow-formed components like pipes, tubes, and straws. 
However, it is not a viable option for creating very complex parts.
CALL US: (585) 272-6170 Apollooptical.c
om
3. Rotational Molding
This polymer molding process uses rotations and high temperatures to coat 
the exterior of the molds and form the part and component shapes. The 
mold cools down while rotating, allowing the ejection of the end product 
from the machine. This process makes hollow and large containers with 
one section like tanks. However, this process is very slow and not great for 
the rapid mass production of specific parts.
CALL US: (585) 272-6170 Apollooptical.c
om
Injection Molding
Plastic injection molding is a versatile process considering it is cost-
effective, fast, and creates different part sizes. The process involves 
injecting molten plastic into a steel mold and allowing it to cool and eject 
the final product. The process sounds simple, but it is complex, considering 
adjusting the mold parameters to achieve a particular product is nearly 
impossible. Nonetheless, it is still a viable solution for manufacturing large 
volumes of precise and consistent parts that vary in complexity. It is also 
cheaper and more effective than the other plastic molding processes.
CALL US: (585) 272-6170 Apollooptical.c
om
Blow Molding
Blow molding works like traditional glass blowing, where a machine pushes 
air into a plastic parison to achieve a specific shape. The heated plastic is 
directly blown into its final form, and after it cools, the machine ejects the 
final product from the mold. This polymer molding process is primarily 
used to create simple hollow containers with very thin walls. Some 
products of this process include plastic bottles, large storage containers, 
and drums. It is, however, unable to build intricate components due to 
complexities.
CALL US: (585) 272-6170 Apollooptical.c
om
thank you for visit us
CALL US: (585) 272-6170 Apollooptical.c
om