Blow-molding Process

Blow Molding Process

The blow-molding technique is a versatile process whereby air pressure is used for blowing hot plastic into the cavity of a mold. This process has the advantage of producing more rigid and lighter parts than other plastic-manufacturing techniques.

The Advantages

Selecting blow molding offers many advantages for the customer

• Lightness
• Inherent mechanical structure
• Impact absorption
• Possibility of making parts multifunctional
• Profiled finish on all surfaces
• Secure parts with smooth edges and without chinks
• Quality and consistency of surface finishes
• Insulation
• Ability to contain, circulate and support
• Possibility of obtaining single- or double-walled parts

 

Comparative Table of Processes

	Blow Molding	Thermoforming	Rotational molding	Injection
Cost of mold	Moderate	Low	Low-Moderate	High
Cost of Mold Touchups	Moderate	Moderate	Moderate	High
Cost of part	Low - Moderate	High	Moderate	Low
Production Speed	Moderate-High	Low	Low	High
Production Volume	Low to High	Low - Moderate	Low – Moderate	High