Heat Stabilized Glass Fiber Reinforced Nylon PA66 Compounds For Durable Automotive Water Pump Applications

Heat Stabilized Glass Fiber Reinforced Nylon PA66 Compounds For Durable Automotive Water Pump Applications

Product Description

The Heat Stabilized Glass Fiber Reinforced Nylon PA66 Compounds are specially developed for automotive water pump housings and impellers, where long-term exposure to hot coolant, high mechanical stress, and elevated operating temperatures is a constant challenge.

Unlike standard nylon materials, this grade incorporates advanced heat stabilizers and glass fiber reinforcement, delivering exceptional thermal stability, dimensional accuracy, and hydrolysis resistance. With these advantages, it ensures consistent performance and extended service life in demanding automotive environments.

By combining strength, lightweight properties, and excellent chemical resistance, this material has become the preferred choice for OEMs and tier suppliers in modern vehicle cooling systems.

Properties Data Sheet

Notes: The general guidelines are only for reference. Exact settings have to follow the product and machine conditions.

Avoid contact with other materials, dust and debris in the injection processing.

Avoid long time stay in the barrel in the injection processing.

Usage Notes

• Drying: Always pre-dry at 100–110°C for 4–6 hours before molding to prevent hydrolysis and surface defects.

• Molding Guidelines: Injection temperature 270–300°C, mold temperature 80–100°C for optimal crystallinity.

• Design Recommendations: Ensure proper wall thickness to balance strength and flowability in complex pump designs.

• Chemical Exposure: Tested and compatible with ethylene glycol–based coolants, but avoid prolonged exposure to highly acidic or alkaline fluids.

• Safety: Use proper molding exhaust systems as processing at high temperatures may release fumes.

Features, Advantages & Technical Highlights

• Superior Heat Resistance – Retains strength and rigidity even at continuous 120–150°C operation.

• Excellent Hydrolysis Resistance – Long-term stability in hot water and coolant environments.

• High Mechanical Strength – Glass fiber reinforcement boosts tensile strength up to 160 MPa.

• Dimensional Stability – Minimal warpage, critical for maintaining pump sealing and efficiency.

• Lightweight Alternative to Metals – Reduces overall vehicle weight, enhancing fuel efficiency.

• Wear Resistance – Prolongs life of impellers and housings under constant fluid circulation.

• Corrosion-Free – Unlike metal pumps, no rusting or scaling issues.

Working Principle: The polyamide matrix combined with heat stabilizers and glass fibers forms a composite that resists both thermal aging and mechanical stress. The reinforced structure absorbs vibration while resisting deformation, ensuring stable water pump operation.

Applications

• Automotive water pump housings

• Coolant impellers and covers

• Thermostat housings

• Engine cooling system connectors

• Other high-temperature fluid handling components

Customizable Parameters

• Base Resin: PA66 / PA6 (heat stabilized)

• Reinforcement: 30%–50% glass fiber

• Color Options: Black (standard), natural, or custom colors upon request

• Tensile Strength: 110–160 MPa

• Flexural Modulus: 6,000–9,000 MPa

• Heat Deflection Temperature (HDT): 220–240°C

• Density: 1.25–1.40 g/cm³

• Moisture Absorption: <1.5% (equilibrium)

Frequently Asked Questions (FAQ)

Q1: Are you a manufacturer or a trading company?
A1: We are a professional manufacturer specializing in modified engineering plastics, including PA6, PA66, PP and other reinforced, flame-retardant, heat-stabilized, UV-resistant and wear-resistant compounds. With our own R&D and production facilities, we provide high-quality materials directly from the factory.

Q2: Can you provide customized material solutions?
A2: Yes. We offer tailor-made formulations according to customer requirements, including reinforcement ratio, color, additives, mechanical strength, heat resistance and processing properties. Our technical team can work closely with you to develop materials that perfectly match your application.

Q3: What industries do your products mainly serve?
A3: Our products are widely used in automotive parts, household appliances, furniture components, industrial equipment, electronics, daily necessities and more. We focus on delivering reliable engineering plastics for demanding applications.

Q4: Do you provide free samples for testing?
A4: Yes, we can provide small quantity samples free of charge for quality testing and evaluation. The customer only needs to cover the freight cost.

Q5: What are your minimum order quantity (MOQ) and lead time?
A5: Our standard MOQ is usually 10 ton per order. Lead time is typically 10-20 working days depending on the quantity and material specifications.

Q6: How do you guarantee product quality?
A6: All products are manufactured under strict quality control standards. We use advanced testing equipment to check mechanical properties, thermal stability, flame retardancy and other performance indicators. Every batch comes with a COA (Certificate of Analysis) before delivery.

Q7: Which packaging and shipping methods do you use?
A7: Our standard packaging is 25kg bags with palletized loading to ensure safe transportation. We can also offer customized packaging as requested. Shipping options include sea, air and express delivery based on customer needs.

Q8: Do your products comply with international standards?
A8: Yes. Most of our engineering plastic compounds comply with RoHS, REACH, UL94, ISO9001 and other international standards. Specific compliance documents can be provided upon request.