High-end Water-based Polyamide-imide Dispersion with Excellent Thermal Stability

SI-309

Durle® Water-based polyamide-imide(PAI) dispersion SI-309 is developed by Quark to meet the high-end market demand for water-borne non-stick coatings. This product does not contain materials such as organic amines that are prone to yellowing under high temperatures. Non-stick coatings made with this material exhibit a blue-shaded color that remains highly stable without developing yellow tones.

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PRODUCT BENEFITS

It offers high gloss, high hardness (particularly thermal hardness), exceptional wear resistance, and superior corrosion resistance in water-borne coatings, making it the specialty engineering material with the best overall performance currently available for water-based non-stick coatings.

APPLICATION

Polyamide-imide (PAI) is a high-performance polymer known for its exceptional thermal stability, mechanical strength, and chemical resistance. Its key applications include:

High-Temperature Coatings

Used as water-based dispersion to protect metal components (e.g., automotive engines, aerospace parts) from heat, corrosion, and wear.

Provides long-term service at temperatures up to 250–300°C.

Insulating coatings

Applied as insulating coatings for enameled wires, motors, and transformers due to its dielectric strength and thermal endurance.

Adhesives and Sealants

Serves as a base for high-temperature-resistant adhesives in industrial bonding (e.g., electronics, composite assemblies).

PAI’s versatility makes it critical in industries demanding reliability under thermal and mechanical stress, while its eco-friendly water-based formulations align with modern sustainability goals.

TECHNICAL DATA

Item	Value
Product Name	High-end Water-based Polyamide-imide Dispersion with Excellent Thermal Stability
Appearance	Yellow liquid
Viscosity	100-300cps
Specific Gravity	1.00-1.20
Solid Content	20.00%-22.00%
Fineness	≤15

PACKAGE

50kg/plastic drum; 200kg/plastic drum

INFOMATION CONTENT

Transportation

Intelligent Warehouse Management: Quark operate modern smart warehouse systems that ensure secure storage, meticulous management, and highly efficient operations. Professional Export Logistics: We strictly adhere to export requirements for customs declaration and inspection, guaranteeing compliant clearance and providing a full set of documentation. Multi-Channel Transportation & Delivery: We cooperated with kinds of shipping agents, who offer flexible solutions including sea freight, air freight, China-Europe Railway Express, and land transport, tailoring personalized shipping strategies to deliver goods to customers punctually and in perfect condition.

Identification and Classification Report for Transport of Goods

We provide all the necessary certificates and documents for international chemical products transportation. Package of goods are compliant with the requirements of exportation.

Quality Inspection

QA department of Quark strictly follow the quality control system, will do comprehensive inspection to ensure all goods are certified before shipment.

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