描述
Zytel MT409AHS BK010 PA66 Resin is an unfilled, medium toughened, heat stabilized polyamide 66 injection molding grade manufactured by Celanese under the well-known Zytel polyamide portfolio. Designed for components exposed to continuous high temperature and impact force, this specialty PA66 fills the performance gap between general-purpose PA66 and super-toughened nylon grades. The Zytel series, originally created by DuPont and now managed by Celanese, covers unfilled, reinforced, toughened, heat stabilized and flame retardant polyamide grades, supplying consistent engineering materials to automotive OEMs, electrical manufacturers and industrial molders globally. All Zytel raw materials follow unified global production specifications to guarantee stable batch-to-batch consistency. You can explore more toughened polyamides through our internal page for toughened PA66 resin series.
As an unfilled formulation, MT409AHS BK010 contains no glass fiber or mineral fillers. Its proprietary toughening package paired with long-term heat stabilizer system forms its core competitive advantages. Compared with conventional standard PA66 such as Zytel 101L, this grade significantly upgrades low-temperature impact resistance and prevents thermal degradation under prolonged elevated temperature environments. Meanwhile, the formulation optimizes knit line strength, a common failure risk for injection molded nylon parts. Unlike highly super-toughened PA66, MT409AHS maintains acceptable rigidity without excessive modulus loss, achieving a balanced combination of stiffness and toughness. Standard PA66 easily turns brittle under sub-zero temperature; many low-cost toughened PA66 suffer poor thermal aging resistance, leading to performance attenuation after long-time heating. Zytel MT409AHS BK010 solves these pain points with proprietary additive technology. If you need higher mechanical rigidity, you can check Zytel 70G30HSL PA66 glass fiber reinforced heat stabilized nylon.
In terms of performance advantages, this black PA66 resin features reliable notched impact strength at both room temperature and low temperatures, excellent resistance to automotive lubricants, greases and many industrial solvents. The built-in heat stabilizer enables long-term service under continuous high-temperature operating conditions. For processing characteristics, Zytel MT409AHS BK010 exhibits good melt fluidity, suitable for thin-wall and complex geometry injection parts. Standard pre-drying procedure is required to eliminate bubbles and surface defects. No special modification for common injection molding equipment is necessary, helping manufacturers shorten trial production cycles and raise finished product yield. Our technical team supports processing parameter guidance for all Celanese polyamides; view our blog article about PA66 injection molding best practices.
This material brings prominent practical value to automotive, power tool and electrical industries. In automotive applications, it is used for engine peripheral accessories, electrical connectors, interior structural brackets and underhood components that face temperature cycling and occasional impact. Its thermal stability and oil resistance satisfy automotive OEM requirements for long service life. In power tool and industrial equipment fields, MT409AHS BK010 is adopted for tool housings, gear covers, pump and valve structural parts which need to withstand repeated impact loads. In electrical and electronics sector, it fits motor components, control housing and wiring accessories requiring balanced mechanical properties. Compared with generic modified toughened PA66 from third-party compounders, Celanese Zytel grade implements strict raw material control, low volatile content and consistent performance after thermal aging, making it preferred for mid-to-high end structural plastic parts. Official TDS and MSDS documents can be downloaded directly via Celanese official website for customer certification submission.
Zytel MT409AHS BK010 PA66 Resin Key Features
- Unfilled medium toughened PA66 formulation
- Long-term heat stabilized for continuous high-temperature service
- Excellent low-temperature notched impact resistance
- Improved knit line strength to reduce part fracture risk
- Balanced stiffness and toughness
- Outstanding resistance to oils, greases and industrial fluids
- Smooth surface appearance without filler bloom
- Optimized flow for complex injection molded geometries
- RoHS compliant prime engineering resin
Zytel MT409AHS BK010 PA66 Resin Typical Applications
- Automotive underhood components, electrical connectors
- Power tool housings and gear covers
- Industrial pump, valve and mechanical structural parts
- Electrical motor components and control unit housings
- Household appliance structural brackets
- Outdoor equipment parts subject to temperature fluctuation
Advantages
Zytel MT409AHS BK010 PA66 effectively avoids low-temperature brittleness found in general-purpose PA66 grades. The integrated heat stabilizer system retains stable mechanical properties under prolonged thermal exposure, while enhanced weld line strength reduces reject rates for complex molded parts. It delivers balanced rigidity and toughness without excessive flexibility seen in super-toughened nylon. As original Celanese prime resin, it provides stable quality and complete technical documentation for customer project verification.
Related Products
- Zytel MT409AHS NC010 (Natural unfilled toughened heat stabilized PA66)
- Zytel 101L PA66 General purpose unfilled PA66
- Zytel ST801 BK010 PA66 Super-toughened PA66
- Zytel 70G30HSL BK010 PA66 30% glass filled heat stabilized PA66
Zytel MT409AHS BK010 PA66 Resin Typical Properties
| Property | Value (DAM) | Unit | Test Standard |
|---|---|---|---|
| Density | 1.14 | g/cm³ | ISO 1183 |
| Tensile Strength (Yield) | 61 | MPa | ISO 527 |
| Flexural Modulus | 2200 | MPa | ISO 178 |
| Elongation at Break | 25 | % | ISO 527 |
| Notched Charpy Impact (23°C) | 19 | kJ/m² | ISO 179 |
| Notched Charpy Impact (-40°C) | 12 | kJ/m² | ISO 179 |
| HDT (1.8 MPa) | 65 | °C | ISO 75 |
| Melting Temperature | 262 | °C | ISO 11357 |
| Linear Molding Shrinkage | 1.3 ~1.6 | % | ISO 294-4 |
Processing Recommendations
| Parameter | Recommended Range |
|---|---|
| Pre-drying Temperature | 80–90 °C |
| Drying Time (dehumidified dryer) | 3–4 hours |
| Max residual moisture | ≤0.2 % |
| Melt Temperature | 270–290 °C |
| Mold Temperature | 60–90 °C |
| Injection Pressure | 60–100 MPa |
| Screw Speed | Medium speed |
Zytel MT409AHS BK010 PA66 Resin FAQ
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What is the difference between Zytel MT409AHS and ST801?
MT409AHS is medium toughened with balanced stiffness; ST801 belongs to super-toughened grade with higher impact but lower modulus. You can view full parameters on Zytel ST801 product page.
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Can MT409AHS BK010 be used for parts working under continuous high temperature?
Yes. Equipped with long-term heat stabilizer, it is suitable for components exposed to sustained elevated temperature inside engine bays and power tools.
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Is this grade filled with glass fiber?
No, Zytel MT409AHS BK010 is unfilled PA66 without any mineral or glass fiber reinforcement.
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Does MT409AHS have better weld line strength than standard PA66?
Yes. Its special formulation improves knit line performance, lowering cracking risks on mold weld positions.
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Can molded parts perform well in low-temperature environments?
This grade maintains decent impact toughness under sub-zero conditions, much better than common non-toughened PA66.
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Is BK010 black color batch stable?
BK010 is factory compounded black grade with uniform pigment dispersion and consistent color among batches, meeting Celanese prime material specifications.
