Strength and toughness
Polyamides combine stiffness, impact strength and wear resistance for load-bearing parts.
PA66
PA66 Supplier from China
PA66 (polyamide 66) and modified PA66 are used in the automotive industry, instrument housings and other products that need impact resistance and high strength. SUNCHEM supplies PA66 grades with a batch COA on every shipment.
Polyamide · PA66 and modified PA66 (e.g. GF30)
- Lot COA with every shipment
- Samples for your trials
- Technical support for your trial
Product overview & key benefits
PA66 (polyamide 66, nylon 66) has a higher melting point than PA6, so it keeps its stiffness at higher temperature. Modified PA66 — reinforced, toughened or flame-retardant — is used for automotive parts, instrument housings and other parts that need impact resistance and high strength.
Tell us the part and the grade you use now (for example PA66-GF30); we quote a matching grade and send samples for a molding trial.
Glass-fiber options
Glass-fiber reinforcement raises stiffness and heat resistance for structural parts.
Specified on your terms
We quote against your mechanical and processing requirements and send the batch COA for each lot.
Technical specifications
| Parameter | Typical value |
|---|---|
| Product name | PA66 |
| Material | Polyamide |
| Grades | PA66 and modified PA66 (e.g. GF30) |
| Melting point (typical for the polymer) | about 260 °C |
| Process | Injection molding |
| Form | Pellets |
Tensile strength, flexural modulus, impact strength, heat deflection temperature, moisture and flame rating depend on the grade and are stated on the TDS and batch COA; the values for your order are confirmed in the quotation and contract.
Applications by Industry
Where PA66 is used, and what to confirm before you switch supply.
Automotive parts
Used for engine-bay and structural parts that need strength at higher temperature.
Check before trial
- Operating temperature
- Glass-fiber content
- Color
Instrument and equipment housings
Used for instrument housings and covers that need impact resistance and dimensional stability.
Check before trial
- Impact requirement
- Surface finish
- Volume
Industrial and electrical parts
Used for gears, bearings, connectors and other load-bearing parts.
Check before trial
- Flame rating if required
- Wear requirement
- Compliance statements
Selection & comparison
Choosing the right PA66 grade
| Your requirement | What usually works |
|---|---|
| Housings and general parts | Unreinforced or lower glass-fiber grade |
| Structural and under-hood parts | Glass-fiber reinforced grade (e.g. 30% GF) |
| Electrical parts needing a flame rating | Ask for a flame-retardant grade and its UL data |
| Replacing an existing supplier | Send your current TDS or COA; we quote against the parameters you approve |
Packaging & storage
Packaging
Tell us the bag size and pallet requirements you need; we confirm the packaging with the quotation.
Storage
Keep bags sealed. Polyamides absorb moisture — dry the pellets to the moisture level on the TDS before molding.
From first email to approved supply
Name the end use
The part, the load and the temperature it sees: the grade follows from that.
Compare the numbers that matter
Tensile and flexural properties, impact strength, heat deflection temperature, glass-fiber content and moisture.
Dry before molding
Check moisture on arrival and dry to the TDS level; wet pellets cause splay and brittle parts.
Trial, then lock the spec
Mold trial parts, test them, and keep the approved lot COA as the reference.
Tell us your requirement. We match the grade.
Tell us the part you mold and the grade you use now, the quantity and the destination port. Add your current specification and we will quote against it.
| Information | Example |
|---|---|
| Application | Automotive, electrical, tools, industrial parts |
| Required specification | Glass-fiber %, color, flame rating |
| Packaging | Bag size; pallets |
| Quantity | Sample / trial order / annual volume |
| Destination | Country and port |
| Documents needed | COA, SDS, TDS, RoHS/REACH |
Related products
PA66 FAQ
What is PA66 used for?
Used for engine-bay and structural parts that need strength at higher temperature. Used for instrument housings and covers that need impact resistance and dimensional stability. Used for gears, bearings, connectors and other load-bearing parts.
Which properties should I compare between offers?
Glass-fiber content, tensile and flexural strength, impact strength, heat deflection temperature and moisture.
Do I need to dry the pellets?
Yes. Polyamides absorb moisture; dry to the level on the TDS before molding.
Can you match my current grade?
Send your current TDS; we quote a grade against the properties you approve and send samples for a molding trial.
