Vacuum Casting High-Quality Prototypes Packaging Products Polystyrene PET Bottles Food Containers

The packaging industry plays a crucial role in ensuring product protection, transportation, and consumer appeal. Vacuum casting is an effective method for creating high-quality prototypes and low-volume production runs of packaging products, such as bottles, containers, and packaging parts used for food and beverages.

Polystyrene (PS) and PET (Polyethylene Terephthalate) are two of the most commonly used materials in the packaging industry due to their excellent properties, including transparency, strength, and resistance to chemicals.

Polystyrene is a rigid plastic often used in packaging applications where clarity and impact resistance are required. It is ideal for food containers, cups, and trays that need to be clear, providing visibility of the product while offering adequate protection. Polystyrene is also lightweight and can be molded into a variety of shapes, making it an excellent choice for designing unique and functional packaging products.

PET, widely used for packaging, especially in the beverage industry, is favored for its high tensile strength, excellent chemical resistance, and ability to be molded into thin walls without sacrificing strength.

Vacuum casting is an ideal technique for creating prototypes of packaging products. In this process:

• A silicone mold is created from a master model (3D print or existing prototype)
• The mold is filled with liquid resin (PS or PET) under vacuum
• Ensures resin fills every part of the mold with no air bubbles
• Creates complex designs with intricate details and precise dimensions

This method is essential for testing packaging products that need to fit tightly, seal properly, and display product contents effectively.

• Fast prototyping for design testing and iteration
• Cost-effective solution for low-volume production
• Ideal for food/beverage packaging that must meet strict standards
• Enables market testing of packaging designs
• Suitable for limited-edition product packaging

• One of the most cost-effective ways to produce high quality, low volume plastic parts
• Suitable for form, fit and function tests during design stages
• Used for marketing, field user testing and product design verification
• Can create parts with various properties (temperature resistance, textures, hardness)
• Produces fully opaque, translucent or completely transparent parts
• Can create high-quality wax masters for investment casting

Polyurethane (PU) is a polymer material formed by polyol and polyisocyanate through polycondensation reaction with excellent mechanical properties. It can be made into materials such as polyurethane plastics (mainly foams), polyurethane fibers, polyurethane rubbers and elastomers.

Flexible polyurethane has better stability, chemical resistance, resilience and mechanical properties than PVC foams, with less compression variability. It features heat insulation, sound insulation, shock resistance, and anti-virus performance, making it ideal for packaging, sound insulation and filtration materials.

Rigid polyurethane plastic is lightweight with superior thermal insulation performance, chemical resistance, good electrical properties, and easy processing. It is mainly used in construction, automotive, and aviation industries.