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Research-Grade HDPE, Small Batches, Fast Iteration
Granules and powders—certified QC for R&D and prototyping
High-density polyethylene (HDPE) granules and powders are essential thermoplastic raw materials valued for their high strength-to-density ratio, chemical inertness, and versatility in processing. As a leading supplier of research-grade polymers, Alfa Chemistry provides HDPE in multiple particle forms—from standard melt-processing granules to fine powders and microbeads—tailored to the precise needs of laboratories, academic institutions, and small-scale manufacturers.
High-density polyethylene (HDPE) is a semi-crystalline, non-polar thermoplastic available in white granular or powder form. Its high strength-to-density ratio, good chemical resistance, and dimensional stability make it widely used in packaging, pipes, containers, and various R&D applications. Typical bulk density and thermal data (for reference only) include a density of approximately 930–970 kg·m-3 and a melting point of approximately 131–132°C—properties that make HDPE suitable for extrusion, molding, and some prototyping processes.
Produced from high-quality virgin HDPE or traceable recycled batches, ensuring consistent properties for precise R&D outcomes.
Available in fine (150 µm) and coarse (400 µm) grades, with custom size distribution on request to match your formulation needs.
Minimum order quantities starting from 100 g, ideal for laboratory trials and prototype production.
Stable against most acids, alkalis, and aqueous systems, suitable for demanding environments.
Each batch supplied with QC documentation, SDS, and COA for traceability and compliance.
Expert guidance on powder selection, dispersion, and processing for your specific application.
Catalog No.: PL–HDPE–A071
Nominal Granule Size: 3–5 mm
Description: The HDPE granules suitable for extrusion, injection molding, and blow molding. Excellent chemical resistance and mechanical strength for R&D prototypes, packaging, and structural components.
MOQ: From 250 g
Catalog No.: PL–HDPE–A072
Particle Size: 150 μm
Description: Fine HDPE powder optimized for dispersion in coatings, composites, and filler systems. Ideal for abrasion resistance enhancement and lightweight formulations.
MOQ: From 100 g
Catalog No.: PL–HDPE–A073
Particle Size: 400 μm
Description: Coarse HDPE powder with excellent flow and blending properties. Suitable for rotomolding prototypes, textured coatings, and specialty polymer blends.
MOQ: From 100 g
Need A Custom Particle Size? We support customization services — contact us with your requirements!
Explore our broader HDPE portfolio to match your unique processing and performance requirements!
| Product Type | Catalog | Product | Price |
| Film | PL-HDPE-A067 | HDPE Film (0.015" Thick), Length 1 ft, 3 ft, 5 ft, 10 ft, 20 ft, Width 47 in | Inquiry |
| PL-HDPE-A068 | HDPE Film (0.030" Thick), Length 1 ft, 3 ft, 5 ft, 10 ft, 20 ft, Width 47 in | Inquiry | |
| PL-HDPE-A069 | HDPE Film (0.040" Thick), Length 12 in, Width 12 in | Inquiry | |
| PL-HDPE-A070 | HDPE Film (0.040" Thick), Length 48 in, Width 31 in | Inquiry | |
| Ball | PL-HDPE-A059 | HDPE Ball (1/8" Dia) | Inquiry |
| PL-HDPE-A060 | HDPE Ball (3/16" Dia) | Inquiry | |
| PL-HDPE-A061 | HDPE Ball (1/4" Dia) | Inquiry | |
| PL-HDPE-A062 | HDPE Ball (5/16" Dia) | Inquiry | |
| PL-HDPE-A063 | HDPE Ball (3/8" Dia) | Inquiry | |
| PL-HDPE-A064 | HDPE Ball (7/16" Dia) | Inquiry | |
| PL-HDPE-A065 | HDPE Ball (1/2" Dia) | Inquiry | |
| PL-HDPE-A066 | HDPE Ball (9/16" Dia) | Inquiry | |
| Rods | PL-HDPE-A051 | HDPE Rod (1/4" Dia), Length 4 ft, 8 ft | Inquiry |
| PL-HDPE-A052 | HDPE Rod (3/8" Dia), Length 4 ft, 8 ft | Inquiry | |
| PL-HDPE-A053 | HDPE Rod (1/2" Dia), Length 4 ft, 8 ft | Inquiry | |
| PL-HDPE-A054 | HDPE Rod (5/8" Dia), Length 4 ft, 8 ft | Inquiry | |
| PL-HDPE-A055 | HDPE Rod (3/4" Dia), Length 4 ft, 8 ft | Inquiry | |
| PL-HDPE-A056 | HDPE Rod (1" Dia), Length 4 ft, 8 ft | Inquiry | |
| PL-HDPE-A057 | HDPE Rod (1 1/4" Dia), Length 4 ft, 8 ft | Inquiry | |
| PL-HDPE-A058 | HDPE Rod (1 1/2" Dia), Length 4 ft, 8 ft | Inquiry | |
| Sheets | PL-HDPE-A001 | HDPE Sheet (1/16" Thick, 6" x 6") | Inquiry |
| PL-HDPE-A002 | HDPE Sheet (1/8" Thick, 6" x 6") | Inquiry | |
| PL-HDPE-A003 | HDPE Sheet (1/4" Thick, 6" x 6") | Inquiry | |
| PL-HDPE-A004 | HDPE Sheet (3/8" Thick, 6" x 6") | Inquiry | |
| PL-HDPE-A005 | HDPE Sheet (1/2" Thick, 6" x 6") | Inquiry | |
| PL-HDPE-A006 | HDPE Sheet (5/8" Thick, 6" x 6") | Inquiry | |
| PL-HDPE-A007 | HDPE Sheet (3/4" Thick, 6" x 6") | Inquiry | |
| PL-HDPE-A008 | HDPE Sheet (1" Thick, 6" x 6") | Inquiry | |
| PL-HDPE-A009 | HDPE Sheet (1/4" Thick, 6" x 12") | Inquiry | |
| PL-HDPE-A010 | HDPE Sheet (3/8" Thick, 6" x 12") | Inquiry | |
| PL-HDPE-A011 | HDPE Sheet (1/2" Thick, 6" x 12") | Inquiry | |
| PL-HDPE-A012 | HDPE Sheet (5/8" Thick, 6" x 12") | Inquiry | |
| PL-HDPE-A013 | HDPE Sheet (3/4" Thick, 6" x 12") | Inquiry | |
| PL-HDPE-A014 | HDPE Sheet (1" Thick, 6" x 12") | Inquiry | |
| PL-HDPE-A015 | HDPE Sheet (1/16" Thick, 8" x 12") | Inquiry | |
| PL-HDPE-A016 | HDPE Sheet (1/8" Thick, 8" x 12") | Inquiry | |
| PL-HDPE-A017 | HDPE Sheet (1/4" Thick, 8" x 12") | Inquiry | |
| PL-HDPE-A018 | HDPE Sheet (3/8" Thick, 8" x 12") | Inquiry | |
| PL-HDPE-A019 | HDPE Sheet (1/2" Thick, 8" x 12") | Inquiry | |
| PL-HDPE-A020 | HDPE Sheet (3/4" Thick, 8" x 12") | Inquiry | |
| PL-HDPE-A021 | HDPE Sheet (1" Thick, 8" x 12") | Inquiry | |
| PL-HDPE-A022 | HDPE Sheet (1/16" Thick, 8" x 24") | Inquiry | |
| PL-HDPE-A023 | HDPE Sheet (1/8" Thick, 8" x 24") | Inquiry | |
| PL-HDPE-A024 | HDPE Sheet (1/4" Thick, 8" x 24") | Inquiry | |
| PL-HDPE-A025 | HDPE Sheet (3/8" Thick, 8" x 24") | Inquiry | |
| PL-HDPE-A026 | HDPE Sheet (1/2" Thick, 8" x 24") | Inquiry | |
| PL-HDPE-A027 | HDPE Sheet (3/4" Thick, 8" x 24") | Inquiry | |
| PL-HDPE-A028 | HDPE Sheet (1" Thick, 8" x 24") | Inquiry | |
| PL-HDPE-A029 | HDPE Sheet (1/32" Thick, 12" x 12") | Inquiry | |
| PL-HDPE-A030 | HDPE Sheet (1/16" Thick, 12" x 12") | Inquiry | |
| PL-HDPE-A031 | HDPE Sheet (3/32" Thick, 12" x 12") | Inquiry | |
| PL-HDPE-A032 | HDPE Sheet (1/8" Thick, 12" x 12") | Inquiry | |
| PL-HDPE-A033 | HDPE Sheet (3/16" Thick, 12" x 12") | Inquiry | |
| PL-HDPE-A034 | HDPE Sheet (1/4" Thick, 12" x 12") | Inquiry | |
| PL-HDPE-A035 | HDPE Sheet (3/8" Thick, 12" x 12") | Inquiry | |
| PL-HDPE-A036 | HDPE Sheet (1/2" Thick, 12" x 12") | Inquiry | |
| PL-HDPE-A037 | HDPE Sheet (5/8" Thick, 12" x 12") | Inquiry | |
| PL-HDPE-A038 | HDPE Sheet (3/4" Thick, 12" x 12") | Inquiry | |
| PL-HDPE-A039 | HDPE Sheet (1" Thick, 12" x 12") | Inquiry | |
| PL-HDPE-A040 | HDPE Sheet (1/32" Thick, 12" x 24") | Inquiry | |
| PL-HDPE-A041 | HDPE Sheet (1/16" Thick, 12" x 24") | Inquiry | |
| PL-HDPE-A042 | HDPE Sheet (3/32" Thick, 12" x 24") | Inquiry | |
| PL-HDPE-A043 | HDPE Sheet (1/8" Thick, 12" x 24") | Inquiry | |
| PL-HDPE-A044 | HDPE Sheet (3/16" Thick, 12" x 24") | Inquiry | |
| PL-HDPE-A045 | HDPE Sheet (1/4" Thick, 12" x 24") | Inquiry | |
| PL-HDPE-A046 | HDPE Sheet (3/8" Thick, 12" x 24") | Inquiry | |
| PL-HDPE-A047 | HDPE Sheet (1/2" Thick, 12" x 24") | Inquiry | |
| PL-HDPE-A048 | HDPE Sheet (5/8" Thick, 12" x 24") | Inquiry | |
| PL-HDPE-A049 | HDPE Sheet (3/4" Thick, 12" x 24") | Inquiry | |
| PL-HDPE-A050 | HDPE Sheet (1" Thick, 12" x 24") | Inquiry |
Functional Coatings
Enhance abrasion resistance, weatherability, and texture in industrial and consumer coatings.
Composite Reinforcement
Improve mechanical strength and reduce density in thermoplastic and thermoset composites.
3D Printing & Prototyping
Blend with other polymers for lightweight, durable prototypes and filament extrusion.
Rotomolding & Powder Coating
Coarse powder grades ideal for even surface distribution and durable molded parts.
Insulation & Lightweight Fillers
Low-density, inert particles for thermal insulation materials and specialty fillers.
Additive Manufacturing R&D
Experimental binder jetting or laser sintering trials with polymer-based powders.
"Still looking for the right granules or powder material? Contact us for free selection advice and samples!"
Online InquiryAlfa Chemistry is proud to show you successful application examples of our PMMA powders.
Need: small-lot, narrow particle-size HDPE microspheres (20–60 µm) to study filler dispersion in thermoplastic matrices.
Solution from Alfa Chemistry: supplied 3 × 250 g trial lots with tight D10–D90 control, accompanied by SEM images and suggested dispersion protocol.
Outcome: enabled repeatable dispersion tests; the lab reported clearer microstructure images and faster iteration on composite formulations. (Confidential academic client.)
Needed: food-contact/biocompatibility-friendly HDPE granules for external housings; quantity: 5 kg small batch.
Solution: supplied low-MFI HDPE granules with traceable batch certificates and recommended molding parameters.
Outcome: The first-pass prototype run succeeded with an acceptable surface finish; the client advanced to a pilot run with a 50–100 kg order.
Needed: HDPE powder as a low-density filler to tune abrasion resistance in a specialty coating; small samples were required for screening.
Solution: delivered three powder grades (10 µm, 50 µm, 150 µm) in 100–500 g sample packs and advised on dispersion solvents/temperatures.
Outcome: the 50 µm grade provided target abrasion improvement while maintaining coating clarity.
Needed: trial-scale granules for extrusion of HDPE-based filament (pilot 10 kg).
Solution: supplied stabilized HDPE granules and support on drying and extrusion profiles.
Outcome: The startup produced consistent filament diameter after 2 iteration cycles and placed repeat orders.
* You can reach out to us for additional product information or technical support.
What distinguishes HDPE granules from HDPE powder?
Granules are optimized for melt processing (extrusion, injection, rotomolding); powders and micro-beads are used when fine dispersion, surface modification, or dry blending is required. Choose powders for coating fillers and granules for melt flow applications.
Do you supply small sample sizes (≤1 kg)?
Yes. Alfa Chemistry supports small R&D quantities and sample kits (grams to single-kilogram packs) with accompanying QC documentation.
Are food-grade or medical/biocompatible HDPE grades available?
Food-contact and medical-compatible HDPE formulations exist; certification depends on grade and country regulations. For medical or food use, request certificates of compliance, test reports and statements of conformity prior to purchase.
How should HDPE be stored before processing?
Keep original packaging sealed; store in a cool, dry, well-ventilated area away from sunlight and ignition sources; allow powders to equilibrate to room temperature before processing.
Can you provide custom particle size distributions or surface-treated beads?
Yes. Alfa Chemistry offers custom milling, sieving and surface treatment services for research lots (subject to MOQ and lead time).
Which analytical tests do you recommend for incoming QC?
Recommended baseline: MFI (melt flow), DSC (melting/crystallinity), density, tensile test, FTIR for identity, and moisture/ash. For powders, particle size distribution and SEM imaging are often useful.
Typical lead time and MOQ for custom small batches?
Standard sample packs: days to 1 week; small custom lots (≤50 kg) typically 1–3 weeks depending on specification and post-processing. Contact sales for exact lead time on bespoke tasks.
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.
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