Polyester Injection Molding

Polyester thermoplastics are one of the most durable and versatile engineering plastic resins used in various applications. Engineering polyesters are based on polyethylene terephthalate (PET) and polybutylene terephthalate (PBT). These plastic resins exhibit brilliant mechanical, thermal, and electrical properties. However, injection molding them requires special expertise. At Veejay Plastic, we have an extensive experience in polyesters thermoplastic injection molding. Over the years, we have worked with various grades and types of polyester thermoplastic to produce accurate and tight tolerance parts in different specifications.

Types of Polyester Thermoplastics We Work With

At Veejay Plastic, we regularly work with the following polyester thermoplastics molding material grades:

• • Polyethylene Terephthalate (PET): It is one of the popular choices for food packaging applications as it meets the FDA guidelines for food packaging. PET is a clear resin and a lightweight plastic that offers high strength and stiffness, and brilliant aging performance.
• • Polybutylene terephthalate (PBT): This thermoplastic engineering polymer is known for its brilliant electrical insulation properties. Owing to this feature, it finds application in electronics and electrical applications. This polyester resin offers several advantages such as resistance to chemical solvents, resistance to heat, excellent electrical, thermal, and mechanical properties, and good heat aging performance.
• • Polyethylene Terephthalate with Glycol Additive (PETG): The glycol additive is added to improve the durability of PET. This copolymer of polyester is heat-, solvent-, and shock- resistant. It is suited for high and low temperatures, and is 100% recyclable. PETG is commonly used as an insulator in electrical applications.
• • Polyethylene Terephthalate Polyester (PETP): It is a hard and dimensionally strong polyester material that assures brilliant gas barrier performance and chemical resistance. PETP is injection molded to create electrical components and bottles.

Beneficial Features of Polyester Thermoplastics Molding Material

In recent years, PET, PBT, and PETG have emerged as the popular injection molding materials. Although differing in their chemical structure, they share some common properties. The following are a few common prominent features of these materials:

• • Low moisture and water absorption when compared to polyamides
• • Good color stability in most application environments
• • Good heat aging properties
• • Excellent wear and tear properties
• • Excellent chemical resistance in comparison to polycarbonates
• • Very good heat resistance and low creep at elevated temperatures

Applications of Polyester Injection Molding

At Veejay, we pay utmost attention to the product detail, which allows us to deliver accurate parts. Accuracy is a combination of several factors, so we employ proven mechanisms to ensure there are minimal errors at every stage. Over the years, we have helped clients explore the benefits of polyester thermoplastic to the maximum through our polyester injection molding services. Some common applications of polyester grades that we work with are:

• • Motor and pump housings
• • Alternator housing
• • Switches
• • Structural automotive components
• • Highly-stressed engineering parts
• • Blister packaging components

At Veejay Plastic, we are committed to delivering quality products at competitive prices in short turnaround times. Our extensive injection molding investments over the years has helped us stay true to this commitment. Owing to our advanced injection molding capabilities, we can provide you polyester injection molded parts that meet your performance requirements. For more information on polyester thermoplastics molding, please contact us as the earliest.