Zytel 70G33HS1L: specs and equivalent grades
Celanese 33% glass fiber reinforced, heat-stabilized, lubricated polyamide 66 (nylon 66) for injection molding. Published data, grades from other producers to ask about, and how to request a quote from one gaylord.
Request a QuoteThe short answer
Zytel 70G33HS1L NC010 is a 33% glass fiber reinforced, heat-stabilized polyamide 66 (PA66-GF33) with lubricant and release agent, for injection molding. It is the heat-stabilized counterpart of Zytel 70G33L. Zytel was a DuPont line; Celanese acquired it with most of DuPont’s Mobility & Materials business on November 1, 2022, and Celanese lists the grade as available in the Americas, Europe and Asia Pacific. It has no published melt flow rate; Celanese gives a viscosity number of 153 cm³/g (ISO 307). Density is 1.39 g/cm³ (ISO 1183), tensile modulus is 11,000 MPa dry (ISO 527) and HDT is 252°C / 486°F at 1.8 MPa (ISO 75). Grades from other producers to ask about include Vydyne R533H NT, Ultramid A3WG6 and Durethan AKV30. They are not identical, so compare the data sheets and run a trial before switching.
Also written as: Zytel 70G33HS1L NC010 (natural), Zytel 70G33HS1L BK031 (black), 70G33HS1L, Zytel 70G33 HS1L. Quote the full code from your drawing or bag label; color and additive suffixes change the grade.
Buying Zytel 70G33HS1L: one gaylord to a railcar · supplier COA on every prime lot · ships from 22+ partner warehouse locations · a polymer chemist checks the grade code before we quote · we aim to quote within one to three business days
Have a part number or drawing callout?
Paste it as written. A polymer chemist will tell you which grade it calls for, suggest equivalents and quote it by email.
Zytel 70G33HS1L specs from the data sheet
Typical values from Celanese’s current grade record for Zytel 70G33HS1L NC010 in its Chemille materials database (checked October 31, 2026). Processing settings, UL 94 and CTI come from the DuPont-era data sheet published through UL Prospector (form TDS-5960-en, May 2018), because the Celanese record does not list them. Dry / conditioned values are shown where the data gives both. 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) | Celanese | Celanese bought the Zytel line from DuPont; the deal closed November 1, 2022. Celanese lists the grade as Commercial and available in the Americas, EMEA and Asia Pacific. |
| Polymer | Polyamide 66 (nylon 66), 33% glass fiber (PA66-GF33) | ISO 1043 |
| Additives | Heat stabilizer, lubricant, release agent | Celanese grade record |
| Process | Injection molding | |
| Melt flow / viscosity | Not published as MFR (viscosity number 153 cm³/g) | ISO 307, 1628 |
| Density | 1.39 g/cm³ (1,390 kg/m³) | ISO 1183 |
| Tensile modulus, dry / conditioned | 11,000 / 8,000 MPa (1,600,000 / 1,160,000 psi) | ISO 527 |
| Stress at break, dry / conditioned | 200 / 140 MPa (29,000 / 20,300 psi) | ISO 527, 5 mm/min |
| Strain at break, dry / conditioned | 3.5 / 5 % | ISO 527, 5 mm/min |
| Flexural modulus, dry / conditioned | 9,500 / 6,000 MPa (1,380,000 / 870,000 psi) | ISO 178 |
| Flexural strength, dry / conditioned | 290 / 200 MPa (42,100 / 29,000 psi) | ISO 178 |
| Notched Charpy impact, dry / conditioned | 23°C: 13 / 17 kJ/m²; −30°C: 10 / 10 kJ/m² | ISO 179/1eA |
| Notched Izod impact, 23°C, dry / conditioned | 12 / 15 kJ/m² | ISO 180/1A |
| HDT at 1.8 MPa / 0.45 MPa (dry) | 252°C / 486°F; 261°C / 502°F | ISO 75-1/-2 |
| Melting temperature | 262°C / 504°F | ISO 11357, 10°C/min |
| Mold shrinkage, parallel / normal | 0.30 % / 1.10 % | ISO 294-4 |
| Water absorption, 2 mm: saturation / 50% RH | 5.7 % / 1.8 % | Similar to ISO 62 |
| Flammability | Celanese record: oxygen index 24 %; burning rate 39 mm/min at 1 mm (FMVSS 302 class B). DuPont-era sheet: UL 94 HB at 0.75 mm and 1.5 mm; CTI 400 V | ISO 4589; ISO 3795 (FMVSS 302); IEC 60695-11-10; IEC 60112. Confirm on the current UL Yellow Card |
| Automotive approvals listed | Ford WSS-M4D673-B1; GM GMW3038P-PA66-GF35H and -GF35J; Stellantis-Chrysler MS.50017 / CPN-2043 and CPN-2224; Mercedes-Benz DBL5410.00 PA66 GF30; Hyundai MS941-03 Type A-7; Stellantis MS.50150 / PA66.GF35.10000T.11C.HS | Celanese grade record; confirm current status with Celanese |
| Drying | 80°C / 176°F for 2–4 h in a desiccant dryer; suggested maximum moisture 0.20 % | DuPont-era sheet |
| Melt temperature | 285–305°C (545–581°F); optimum 295°C / 563°F | DuPont-era sheet |
| Mold temperature | 70–120°C (158–248°F); optimum 100°C / 212°F | DuPont-era sheet |
| Food contact | The data sheet makes no food-contact statement. Ask for the producer’s regulatory letter for the exact grade and color. |
Source data sheets are listed at the bottom of this page. Confirm against the current sheet for your exact grade code and color.
The older DuPont-era sheet lists a dry tensile modulus of 11,000 MPa and the same strength, HDT and shrinkage values as the current Celanese record; its FMVSS 302 burning rate is 28 mm/min versus 39 mm/min in the current record. Use the current figure.
Grades to ask about instead of Zytel 70G33HS1L
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 Zytel 70G33HS1L, any change needs your approval and usually a trial.
| Grade | Producer | Melt flow | Density | Key property | How it compares |
|---|---|---|---|---|---|
| Vydyne R533H NT | Ascend Performance Materials | Not published | 1.40 g/cm³ (ISO 1183) | Tensile modulus 10,600 / 7,900 MPa dry / conditioned (ISO 527-2); stress at break 205 / 145 MPa; HDT 250°C at 1.8 MPa (ISO 75-2/A); UL 94 HB at 0.75–3.0 mm | Close match. 33% glass, heat-stabilized, lubricated PA66 with improved flow. Ascend lists Stellantis MS-DB-41 CPN 2043, the same Chrysler material spec number shown for 70G33HS1L, and FDA 21 CFR 177.1500 and EU 10/2011 among agency ratings. Ask Ascend for letters on the exact spec. Quote this alternative › |
| Ultramid A3WG6 | BASF | MVR 30 cm³/10 min (275°C / 527°F, 5 kg, ISO 1133) | 1.36 g/cm³ (ISO 1183) | Tensile modulus 10,000 / 7,200 MPa dry / conditioned (ISO 527); stress at break 190 / 130 MPa; HDT 250°C at 1.8 MPa | Partial match. Heat aging stabilized PA66, but 30% glass rather than 33%, so slightly less stiff and strong and a little lighter. BASF lists cooling fans, lamp socket housings and automotive powertrain parts among its uses. Quote this alternative › |
| Durethan AKV30 | Envalior (former LANXESS line) | Not published (VN 146 cm³/g, ISO 307) | 1.36 g/cm³ (ISO 1183) | Tensile modulus 10,600 / 7,000 MPa dry / conditioned (ISO 527); stress at break 185 / 125 MPa; HDT 250°C at 1.8 MPa | Partial match. 30% glass PA66; the data sheet lists release agent but no heat stabilizer, so it is not a match for heat-aging duty. Ask Envalior which heat-stabilized Durethan AKV 30 version fits, and for its current sheet. Quote this alternative › |
From each producer’s published data. Brand owners and grade names change; confirm on the current data sheet.
Typical uses for Zytel 70G33HS1L
From Celanese’s grade record and published listings:
- Stiff, strong injection-molded PA66 parts that must hold properties under long heat exposure (Celanese describes 70G33HS1L only as a 33% glass reinforced, heat-stabilized PA66 for injection molding)
- Automotive parts molded to the Ford, GM, Stellantis, Mercedes-Benz and Hyundai material specs listed in the Celanese record
- Celanese lists consumer goods, automotive and transportation, industrial and electrical and electronics as industries for this grade
- Parts that need high short-term heat resistance for a PA66: HDT 252°C at 1.8 MPa (ISO 75). HDT is a short-term test, not a use temperature
What to check before you switch
- Do not swap 70G33HS1L and 70G33L without approval. Same glass level, but 70G33L does not carry the heat stabilizer. See Zytel 70G33L.
- Glass level: Ultramid A3WG6 and Durethan AKV30 are 30% glass. Check stiffness-critical features and snap fits if you move from 33%.
- Check the automotive spec number, not only the polymer. Vydyne R533H lists the same Chrysler CPN 2043 spec as 70G33HS1L; for Ford and GM specs, ask each producer for its approval letter.
- Durethan AKV30 lists no heat stabilizer. For heat-aging parts, ask Envalior for a heat-stabilized Durethan grade and its sheet.
- Dry to below 0.20 % moisture; glass-filled PA66 still splays and loses strength if molded wet. See the resin drying guide.
- Compare values at the same conditioning (dry as molded vs 50% RH) and the same ISO method.
- Run a trial lot and check shrinkage, warpage, cycle time and surface finish before you switch production.
Buying Zytel 70G33HS1L: price, lead time and lot size
- Lot size. From one gaylord to a railcar. See gaylord, LTL and truckload for typical weights per box.
- Where it ships from. 22+ partner warehouse locations. Material already in a partner warehouse usually moves sooner than a grade that has to come from the producer; your quote says which applies.
- Price. We do not publish prices because they move with feedstock, freight and order size. What moves your price most: lot size, color, ship-to region, and whether you need Zytel 70G33HS1L itself or can accept a matched alternative. See how resin is priced, nylon price per pound and the monthly market update.
- Paperwork. Supplier COA on every prime lot (what a COA shows). Ask for the producer’s regulatory letter or UL file if your part needs them.
- Trying an alternative? Start with one gaylord as a trial lot, molded and checked before you commit a full release.
- If Zytel 70G33HS1L itself is not available. Some branded grades are sold only through the producer’s own channels or go on allocation. If we cannot source it, we tell you, then quote a matched alternative with a side-by-side comparison.
Send the grade code, your annual volume and ship-to location. A polymer chemist checks it before we quote; we have been in the resin business for 30+ years. 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
- Celanese Chemille grade record, Zytel 70G33HS1L NC010 (checked Oct 31, 2026)
- Zytel 70G33HS1L NC010 technical data sheet, UL Prospector copy, May 2018 (PDF)
- Plastics Technology: Celanese to acquire DuPont engineering plastics (Feb 2022)
- Ascend Vydyne R533H NT data sheet, April 2026 (PDF)
- BASF Ultramid A3WG6 data sheet, Material Data Center via Albis (PDF)
- Envalior Durethan AKV30 data sheet, Material Data Center via Albis (PDF)
Common questions
What is Zytel 70G33HS1L?
Zytel 70G33HS1L NC010 is a 33% glass fiber reinforced, heat-stabilized polyamide 66 with lubricant and release agent, for injection molding. It was a DuPont grade; Celanese has owned the Zytel line since November 1, 2022.
What is the difference between Zytel 70G33HS1L and 70G33L?
Both are 33% glass PA66 for injection molding. 70G33HS1L adds a heat stabilizer for parts that see long-term heat; 70G33L lists lubricant and release agent only. Do not substitute one for the other without approval.
What is equivalent to Zytel 70G33HS1L?
Grades from other producers to ask about include Vydyne R533H NT (33% glass, heat stabilized), Ultramid A3WG6 (30% glass, heat stabilized) and Durethan AKV30 (30% glass). None is identical; compare data sheets and run a trial, and get approval if your part names Zytel 70G33HS1L.
What is the density of Zytel 70G33HS1L?
1.39 g/cm³ (ISO 1183), per Celanese’s grade record for the natural NC010 version.
Can ResinBridge supply Zytel 70G33HS1L?
We quote Zytel 70G33HS1L when our supply partners can source it. If they cannot, we say so up front and quote a matched alternative, named on the quote with its data sheet, so you can decide whether to trial it.
If your grade is not listed, tell us what you run. We source commodity, engineering and specialty resins.
Need Zytel 70G33HS1L or an equivalent?
A polymer chemist reviews every request, then matches your grade or finds a matched alternative 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 Zytel 70G33HS1L or a matched alternative
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