- Home
- Resources
- Product Focus
- PET Granules and Powders
Alfa Chemistry is a trusted supplier of polyethylene terephthalate (PET) products, specializing in high-quality PET pellets and powders for researchers, engineers, and small-scale manufacturers. We understand the importance of small batches, prototypes, and custom formulations during the R&D phase, offering flexible packaging, optional specifications, and custom processing services. Whether you're developing advanced materials, conducting polymer processing research, or testing new production technologies, Alfa Chemistry is your trusted partner.
Polyethylene terephthalate (PET) is a semicrystalline thermoplastic polyester formed by the polymerization of terephthalic acid (or dimethyl terephthalate) and ethylene glycol. It is one of the most widely used engineering plastics worldwide, prized for its excellent mechanical strength, transparency, chemical resistance, and ease of processing.
PET's excellent dimensional stability and gas and moisture barrier properties make it a preferred material for packaging, textiles, films, and engineered components. PET in granule or powder form can be processed by extrusion, injection molding, thermoforming, and other methods, or used as a feedstock for polymer research and advanced materials development.
Excellent tensile and impact strength, suitable for structural applications and testing.
Ideal for optical and packaging research requiring high clarity.
Effective barrier to gases and moisture, suitable for packaging and film research.
Maintains performance even at high temperatures.
Resistant to a wide range of solvents, oils, and chemicals, ensuring durability in a variety of environments.
A thermoplastic material that can be melt-reformed and recycled; ideal for circular materials research.
| Catalog | Product | Price |
| PL-PET-A077 | PET Granule (3-4 mm granule size) | Inquiry |
| PL-PET-A078 | PET Powder (16 mesh) | Inquiry |
| PL-PET-A079 | PET Powder (20 mesh) | Inquiry |
| PL-PET-A080 | PET Powder (32 mesh) | Inquiry |
| PL-PET-A081 | PET Powder (50 mesh) | Inquiry |
| PL-PET-A082 | PET Powder (80 mesh) | Inquiry |
| PL-PET-A083 | PET Powder (100 mesh) | Inquiry |
| PL-PET-A084 | PET Powder (150 mesh) | Inquiry |
| PL-PET-A085 | PET Powder (200 mesh) | Inquiry |
| PL-PET-A086 | PET Powder (300 mesh) | Inquiry |
| PL-PET-A087 | PET Powder (500 mesh) | Inquiry |
| PL-PET-A088 | PET Powder (800 mesh) | Inquiry |
| PL-PET-A089 | PET Powder (1000 mesh) | Inquiry |
| PL-PET-A090 | PET Powder (1500 mesh) | Inquiry |
| PL-PET-A091 | PET Powder (2000 mesh) | Inquiry |
*Note: If you require particle size distribution, viscosity, or more detailed physical and chemical test reports (TDS/COA), please request these when placing your order. We can provide sample testing and small batch testing.
Explore our broader PET product portfolio to meet your unique processing and performance requirements!
Alfa Chemistry's PET powders and granules are designed for scientific research and laboratories, providing reliable, high-purity materials for a wide range of experimental studies.
Polymer Processing and Molding Research
Researchers use PET granules and powders to investigate extrusion, injection molding, and thermoforming processes. The consistent particle size and thermal stability of these materials enable controlled studies of the crystallization behavior, melt flow characteristics, and mechanical properties of PET-based samples.
Additive Manufacturing and 3D Printing Research
Fine PET powders are ideal for powder-based 3D printing technologies such as SLS or binder jetting. Researchers can explore process optimization, interlayer adhesion, and post-processing to develop high-performance 3D-printed polymer components.
Packaging Material Testing and Performance Evaluation
PET's barrier properties, clarity, and mechanical strength make it a preferred material for investigating novel packaging concepts. Research applications include permeation testing, structural integrity assessment, and optical clarity evaluation of food, pharmaceutical, or technical packaging.
Surface Modification and Coating Experiments
PET powder can serve as a substrate for functional coating, surface grafting, or plasma treatment studies, helping scientists develop materials with enhanced hydrophobicity, adhesion, or chemical resistance.
Composite Material Development
PET powder is often added to polymer blends, reinforced composites, and hybrid materials to evaluate its mechanical reinforcement, thermal stability, or compatibility with fillers and additives.
Barrier Property Analysis and Film Preparation
PET's excellent gas and moisture resistance makes it suitable for membrane research, filtration studies, and barrier testing, supporting innovations in water treatment, gas separation, and packaging technologies.
Alfa Chemistry offers PET powders and granules in a variety of particle sizes, ensuring compatibility with a wide range of research applications.
Contact us today to request a quote online or to discuss your custom needs.
Online Inquiry
Thermoplastic processing (extrusion, injection molding, and thermoforming) is typically performed in the 240–280°C range. The specific temperature should be determined based on the equipment, sample volume, and formulation optimization.
Dehumidification and drying are recommended before processing to prevent hydrolysis and molecular weight loss. Drying at 80–120°C for several hours is generally recommended, with the specific time depending on the powder mesh size and moisture content.
Can be blended with toughening agents, flame retardants, fillers, colorants, or coupling agents for composite research and property control.
Select appropriate mesh size and particle size distribution to ensure smooth powder flow and interlayer bonding. Ultrafine powders should be carefully considered for their agglomeration and hygroscopicity.
Alfa Chemistry is proud to show you successful application examples of our PET powders.
A university's polymer materials research laboratory focused on recycling technologies for green packaging materials. They planned to modify conventional PET with biodegradable polymers to achieve partially biodegradable packaging plastics. Because they needed only small sample batches in their initial stages, they struggled to find a supplier in the market that could provide a variety of particle sizes and maintain research-grade purity.
Alfa Chemistry provided PET powders in various particle sizes (100 mesh to 500 mesh) for experimentation with various mixing ratios. The powder's consistent particle size and low impurity levels ensured stability during extrusion, avoiding issues like bubbles and delamination. The research team successfully developed a partially biodegradable PET blend system and presented their findings at a national academic conference. The customer stated, "Alfa Chemistry's PET powder's stability and purity are ideal for experimental research, and the flexibility of purchasing in small batches significantly reduces trial costs."
A team at an independent 3D Printing Materials Innovation Lab was exploring the feasibility of PET materials for SLS. They required ultrafine powder (1000–2000 mesh) with uniform particle size and good flowability for uniform powder layer deposition and sintering experiments during laser sintering.
Alfa Chemistry provided multiple batches of comparison samples, including PET powder (1000 mesh) and PET powder (2000 mesh), as requested by the customer. We also provided pre-drying treatment recommendations and surface modification guidance to reduce powder agglomeration and moisture absorption. The lab successfully printed PET prototype parts with good interlayer bonding strength and a smooth surface. The customer stated, "Alfa Chemistry's ultrafine PET powder demonstrates excellent flowability and particle size distribution control, significantly improving the success rate of SLS printing." They plan to apply it to functional prototypes and structural testing in the next phase.
A functional film technology startup plans to develop a composite film with high barrier and UV resistance by adding inorganic nanofillers to a PET matrix. The project is still in the formulation verification phase, and the customer only requires a small amount of PET raw material of varying particle sizes for hot pressing and casting tests.
Alfa Chemistry provided standard-sized PET granules (3-4 mm) and matching PET powders (80-150 mesh), as well as recommended drying and melt-mixing conditions. Our technical team assisted the customer in optimizing the PET melt processing temperature and nanofiller dispersion ratio. The customer successfully produced a prototype film, and testing results showed an approximately 30% reduction in oxygen permeability while maintaining good mechanical toughness. Customer feedback: "Alfa Chemistry's technical support was very timely, and the efficient delivery of small batches of PET samples allowed us to quickly move to the next stage of performance verification."
* You can reach out to us for additional product information or technical support.
What is the difference between PET granule and PET powder?
PET granules are small, cylindrical or spherical particles suitable for extrusion, molding, or lab-scale compounding studies. PET powder is a finely ground particle ideal for research applications such as 3D printing, film fabrication, and surface modification experiments.
How do I choose the right mesh?
The choice depends on the end use: Lamination and fluidity requirements (such as SLS) generally require a narrowly distributed, medium particle size; powder coating or modification experiments may require a finer powder. If you are unsure, please provide the application and processing method, and we will recommend an appropriate specification.
Can you provide a physical property test report (COA)?
Yes. For formal orders or sample requests, we can provide standard test data or customized testing with the product (for an additional fee).
Do you provide technical support and process guidance?
We provide basic process recommendations and material property descriptions for research purposes; complex process optimization is available as a paid service.
Can I purchase a small amount of PET powder for research purposes?
Yes. Alfa Chemistry specializes in flexible, lab-scale PET powders and granules designed for R&D teams, universities, and small projects.
Can Alfa Chemistry provide custom PET powders or granules?
Yes. If you require a specific particle size, modified granules, or other custom specifications, Alfa Chemistry offers custom processing services to meet your research needs.
Are Alfa Chemistry's PET powders suitable for 3D printing?
Yes. Fine PET powders are compatible with powder-based 3D printing technologies, such as SLS, and can be used to study interlayer adhesion, sintering behavior, and post-processing.
Alfa Chemistry is a global leader in the field of plastics. Working with us, you will enjoy outstanding quality products and services at competitive prices.
Interested in our Services & Products? Need detailed information?
Privacy Policy | Cookie Policy | Copyright © 2025 Alfa Chemistry. All rights reserved.
