Marlex HHM 5502BN: specs and equivalent grades
Chevron Phillips Chemical high molecular weight HDPE (ethylene-hexene copolymer). Published data, grades from other producers to ask about, and how to request a quote from one gaylord.
Updated October 2026
Request a QuoteThe short answer
Marlex HHM 5502BN is Chevron Phillips Chemical's high molecular weight HDPE (ethylene-hexene copolymer), sold for extrusion blow molding of lightweight containers. Published melt flow is 0.35 g/10 min, measured at 190°C / 374°F, 2.16 kg, ASTM D1238, and density is 0.955 g/cm³ (ASTM D1505). Grades from other producers to ask about include Formolene HB5502B, NOVAPOL HB-L354-A and Alathon L5840. They are not identical, so compare the data sheets and run a trial before switching.
Marlex HHM 5502BN specs from the data sheet
Typical values from Chevron Phillips Chemical's published data sheet. Typical values are not specifications; the lot COA shows what you actually receive. Values only compare at the same test method and condition.
| Property | Value | Test method or note |
|---|---|---|
| Producer (brand owner) | Chevron Phillips Chemical | Data sheet |
| Polymer | High molecular weight HDPE (ethylene-hexene copolymer) | |
| Process | Extrusion blow molding of lightweight containers | |
| Melt flow | 0.35 g/10 min | 190°C / 374°F, 2.16 kg, ASTM D1238 |
| Density | 0.955 g/cm³ (ASTM D1505) | |
| Tensile strength at yield, 2 in/min, Type IV | 27 MPa (4,000 psi) | ASTM D638 |
| Elongation at break | 600% | ASTM D638 |
| Flexural modulus, tangent | 1,370 MPa (200,000 psi) | ASTM D790 |
| ESCR, Cond. B, 100% Igepal, F50 | 24 h | ASTM D1693 |
| Brittleness temperature | < -75°C / < -103°F | ASTM D746 |
| Additives | None stated | |
| Food contact | Producer states it meets FDA 21 CFR 177.1520 (c) 3.2a (data sheet) and, per its September 2025 Product Regulatory Overview, 177.1520 (c) 3.1a, 3.2a and (b), all food types, use conditions B through H; also listed in the Drug Master File. Ask CPChem for the current letter. |
Source data sheets are listed at the bottom of this page. Confirm against the current sheet for your exact grade code and color.
Grades to ask about instead of Marlex HHM 5502BN
These grades from other producers have similar published specs. None is a drop-in replacement: additive packages, flow at molding shear rates, color and approvals differ. If your part, drawing or customer approval names Marlex HHM 5502BN, any change needs your approval and usually a trial.
| Grade | Producer | Melt flow | Density | Key property | How it compares |
|---|---|---|---|---|---|
| Formolene HB5502B | Formosa Plastics USA | 0.35 g/10 min (Formosa product table) | 0.955 g/cm³ (Formosa table) | Formosa table lists MI and density only | Hexene copolymer HDPE, HIC and general purpose bottle grade; HB5502A/F versions add antistat |
| NOVAPOL HB-L354-A | NOVA Chemicals | 0.3 g/10 min (190°C / 374°F, 2.16 kg, ASTM D1238) | 0.955 g/cm³ (ASTM D792) | Flexural modulus 1,180 MPa; ESCR F50 35 h (Cond. B, 100% Igepal) | Hexene copolymer HDPE blow molding resin for household and industrial chemical bottles |
| Alathon L5840 | LyondellBasell | 0.35 g/10 min (190°C / 374°F, 2.16 kg, ASTM D1238) | 0.958 g/cm³ (ASTM D1505) | Flexural modulus, 1% secant 1,460 MPa; ESCR F50 25 h | Extrusion blow molding, lightweighting resin, high stiffness |
| Alathon L5440 | LyondellBasell | 0.35 g/10 min (190°C / 374°F, 2.16 kg, ASTM D1238) | 0.954 g/cm³ (ASTM D1505) | Flexural modulus, 1% secant 1,230 MPa; ESCR F50 50 h | Extrusion blow molding, good ESCR; household and industrial chemical bottles |
From each producer's published data. Brand owners and grade names change; confirm on the current data sheet.
Typical uses for Marlex HHM 5502BN
From Chevron Phillips Chemical's data sheet and published listings:
- Ice chests and coolers
- Household and industrial chemical containers
- Food packaging
- Pharmaceuticals
What to check before you switch
- CPChem's regulatory overview notes HHM 5502BN is produced by CPChem and one or more affiliates, including Saudi Polymers Company; ask about origin if it matters for your program.
- ESCR is the property to watch for chemical bottles: 24 h (5502BN) versus 25 to 50 h for the alternatives listed; run your own stress-crack and top-load tests.
- Formosa's HB5502 name is a look-alike, not proof of identity; HB5502A and HB5502F contain antistat (non-food and food grade).
- Data sheet revision date is August 2021; CPChem's regulatory overview is dated September 2025.
- Drug Master File listing is specific to the CPChem grade.
- Compare melt flow, density and impact only at the same test condition and method (ASTM vs. ISO results differ).
- Ask for the producer's food-contact or regulatory letter for the exact grade if the part needs one.
- Run a trial lot and check shrinkage, cycle time and appearance before you switch production.
Buying Marlex HHM 5502BN or an equivalent
Send us the grade name, your annual volume and ship-to location. A polymer chemist checks the data sheet and we quote Marlex HHM 5502BN where we can source it, or a qualified equivalent, saying clearly which one you would get. Orders start at one gaylord. For background on this resin family see HDPE Blow Molding Resin; for several grades at once, use the resin RFQ template.
Trade names belong to their owners. ResinBridge is not affiliated with these producers; grade names are used only to identify the material. Data reflects published sheets as of October 2026.
Sources
- cpchem.com/what-we-do/solutions/polyethylene/products/marlexr-hhm-5502bn-polyethylene
- cpchem.com/sites/default/files/2021-08/TDS%20-%20Marlex%C2%AE%20HHM%205502BN%20Polyethylen
- cpchem.com/sites/default/files/2025-09/HHM_5502BN_PRO_FC_09042025_Rev_1.pdf
Common questions
What is Marlex HHM 5502BN?
Marlex HHM 5502BN is Chevron Phillips Chemical's high molecular weight HDPE (ethylene-hexene copolymer), sold for extrusion blow molding of lightweight containers.
What is the melt flow of Marlex HHM 5502BN?
0.35 g/10 min, measured at 190°C / 374°F, 2.16 kg, ASTM D1238, per the published data sheet.
What is equivalent to Marlex HHM 5502BN?
Grades from other producers to ask about include Formolene HB5502B, NOVAPOL HB-L354-A and Alathon L5840. None is identical; compare data sheets and run a trial, and get approval if your part names Marlex HHM 5502BN.
Is Marlex HHM 5502BN food-contact compliant?
Producer states it meets FDA 21 CFR 177.1520 (c) 3.2a (data sheet) and, per its September 2025 Product Regulatory Overview, 177.1520 (c) 3.1a, 3.2a and (b), all food types, use conditions B through H; also listed in the Drug Master File. Ask CPChem for the current letter.
Can ResinBridge quote Marlex HHM 5502BN?
Yes. Send the grade name and volume. A polymer chemist checks it and we quote the grade where we can source it, or a qualified equivalent, and say which one. Orders start at one gaylord; U.S. and Canada only.
If your grade is not listed, tell us what you run. We source commodity, engineering and specialty resins.
Need Marlex HHM 5502BN or an equivalent?
A polymer chemist reviews every request, then matches your grade or finds a qualified equivalent and prices it.
What to send for an accurate quote
- The grade name, from any supplier, or a data sheet
- Color (natural, black or a custom match)
- Fill type and percentage, if any
- Melt flow, if you know it
- Quantity for this order and what you use in a year
- Ship-to city and state or province
Quote Marlex HHM 5502BN or a qualified equivalent
A polymer chemist checks the data sheet and tells you exactly what you would get before you order.
Request a QuoteNot sure which grade fits your part?
Send the grade you run now, or describe the part. A polymer chemist reviews every request.