Engineering Plastics
PA Resin Supplier — PA6 / PA66
Polyamide Resin · The Workhorse of Engineering Plastics
Polyamide (PA6 and PA66) is the most widely used engineering thermoplastic worldwide, with annual global consumption exceeding 8 million tons. As a PA resin supplier, Sychem partners with leading global suppliers — INVISTA, Ascend Performance Materials, BASF Ultramid® — and works closely with top-tier Chinese producers to deliver complete solutions for automotive, electrical & electronics, consumer goods, packaging, and industrial applications.
PA6 vs PA66 — Choosing the Right Grade
Both grades are workhorses of engineering plastics, but each has distinct strengths that determine the optimal application fit.
PA6 (Polyamide 6)
Better processability, superior surface finish, and excellent toughness. Wider processing window and lower melt viscosity make PA6 the preferred choice for thin-wall parts, complex geometries, films, and fibers.
PA66 (Polyamide 66)
Higher heat resistance, higher rigidity, and superior dimensional stability. The premium choice for under-the-hood automotive applications, electrical connectors, and precision-engineered structural parts.
| Property | PA6 | PA66 | Implication |
|---|---|---|---|
| Melting Point | ~220°C | ~260°C | PA66 better for high-temp service |
| HDT (1.8 MPa) | 55–65°C | 70–85°C | PA66 better dimensional stability |
| Tensile Strength | 70–85 MPa | 80–95 MPa | PA66 slightly stronger |
| Water Absorption (24h) | 1.6% | 1.2% | PA66 less moisture sensitive |
| Toughness / Impact | Higher | Lower | PA6 better for impact-prone parts |
| Processing Window | Wider | Narrower | PA6 easier to process |
| Surface Finish | Superior | Good | PA6 preferred for visible parts |
| Cost | Lower | Higher | PA6 typically 10–20% lower |
Applications
From engine intake manifolds to cable ties, from packaging films to high-voltage connectors — PA is the most widely deployed engineering plastic across all major industries.
Automotive
Engine intake manifolds, cylinder head covers, oil pans, transmission components, fuel system parts, radiator end tanks, body-in-white inserts, EV battery housings, and high-voltage connectors. PA dominates automotive lightweighting and metal-replacement strategies.
Electrical & Electronics
Cable ties, terminal blocks, circuit breaker housings, plug-in connectors, contactor parts, bobbins, switches, and motor end caps. UL94 V-0 halogen-free flame-retardant grades support stringent E&E safety; high CTI tracking resistance suits high-voltage applications.
Consumer Goods & Sporting
Power tool housings, kitchen appliance parts, bicycle and motorcycle components, sporting equipment (ski boots, ice skate frames, racket strings), zippers, fishing lines, monofilament brushes — combining toughness, abrasion resistance, and aesthetic finish.
Industrial · Packaging · Films
Industrial gears, bearings, bushings, conveyor belts, hydraulic seals, pump components, oil and fuel storage. PA6 BOPA biaxially-oriented films deliver excellent oxygen barrier for food packaging, sausage casings, retort pouches, and medical sterile packaging.
Global Tier-One Suppliers
INVISTA, Ascend Performance Materials, and BASF Ultramid® represent the highest level of polyamide manufacturing technology worldwide.
INVISTA
The world’s largest fully integrated PA66 polymer producer. INVISTA controls the complete vertical supply chain — from adipic acid and HMD intermediates through PA66 polymer — ensuring the most stable supply and competitive economics in the industry. Premium high-viscosity PA66 grades combine wear resistance with durability, with excellent retention of molecular weight during demanding processing.
Ascend Performance Materials
The world’s largest fully integrated PA66 resin producer with five fully integrated manufacturing facilities. Holds 180+ approvals from automotive OEMs including BMW, Daimler, Ford, GM, Hyundai/Kia, Toyota, and VW Group. Vydyne is the industry benchmark for OEM-validated automotive PA66.
BASF
The original inventor of PA6. BASF’s Ultramid® portfolio is the industry’s most comprehensive polyamide range, covering PA6, PA66, PA610, PA66/6 copolymers, and high-performance Ultramid® Advanced (PA6T/6, PA9T) and Ultramid® Endure (heat-resistant for under-the-hood up to 220°C). Ultramid® Ccycled® supports OEM sustainability targets via chemical recycling.
Chinese Manufacturing Network
China is the world’s largest PA producer and consumer. Sychem partners with leading Chinese PA producers to deliver international quality with local responsiveness and competitive cost.
Tier-1 China Producer A
Tier-1 China Producer B
Tier-1 China Producer C
Grade Quick Reference
Cross-brand grade selection by application — your one-stop reference.
| Application | Resin Type | Recommended Grades | Key Features |
|---|---|---|---|
| Engine intake manifold | PA6 GF30 | BASF Ultramid® B3WG6 | Heat & chemical resistance |
| Under-the-hood structural | PA66 GF30/35 HS | Ascend Vydyne® R530H/R535H · BASF Ultramid® A3WG6 | 1000h @ 210°C |
| Body-in-white inserts | PA66 GF impact | Ascend Vydyne® R433H / R435H | High energy absorption |
| EV high-voltage connectors | PA66 / PA9T | BASF Ultramid® Advanced N3U41G6 / N3U42G6 · Ascend Vydyne® J series | Low electro-corrosion |
| EV battery / E&E | PA66/6T | BASF Ultramid® T6000 | High-temp dielectric |
| Cable ties | PA66 unfilled | Ascend Vydyne® 21SPC / 21SPF / 22HSP | UL listing, lubricated |
| FR connectors | PA66 V-0 | Ascend Vydyne® ECO · BASF Ultramid® FR | UL94 V-0 · GWFI 960°C |
| BOPA packaging films | PA6 film grade | BASF Ultramid® B film · INVISTA PA66/6 copolymer | Oxygen barrier |
| Industrial gears & bearings | PA66 / + MoS₂ | INVISTA high-viscosity PA66 · BASF Ultramid® A | Wear resistance |
| Heat-resistant 220°C+ | PA66/6T HS | BASF Ultramid® Endure D3G7 | Continuous @ 220°C |
Actual selection depends on specific processing conditions and certification requirements. Sychem provides complete TDS, UL Yellow Card, SDS, RoHS, and REACH documentation.
Need PA6 / PA66 Selection Support?
Tell us your application and performance targets — our engineering team will respond within 24 hours with preliminary grade recommendations, technical data sheets, price ranges, and sample arrangements.
Request a Quote Discuss Your ProjectYour PA Resin Supplier in China
SYCHEM TECH is a PA resin supplier based in Shenyang, China, offering PA6 and PA66 polyamide grades — unfilled, glass-fiber reinforced, flame-retardant, and impact-modified — for automotive, electrical and electronics, consumer goods, packaging, and industrial applications. As your formulation development partner, we match the right viscosity, reinforcement, and additive package to your process and source flexibly from global and Chinese producers to balance quality, lead time, and cost. For background, see the overview of nylon (polyamide).
Looking for a reliable PA resin supplier with grade-selection support? Tell us your application and performance targets and our team will recommend suitable PA6 / PA66 grades and arrange samples. Explore our related engineering plastics — ABS, PPO / PPE, and GPPS / HIPS — or browse the full engineering plastics range.