Polyester Powder Coating is our flagship ready-to-spray product line, widely specified for outdoor architectural aluminum, fences, railings and general industrial metalwork. We balance weather resistance, impact and flexibility with a smooth, consistent finish. Below you will find the product grades, curing systems and performance options we produce, together with the points buyers typically confirm before placing an order.

Polyester Powder Coating Product Range

Choosing the Right Curing System

For outdoor polyester powder coating, the choice between TGIC and TGIC-free (HAA) chemistry is one of the most common questions buyers raise. The two systems look similar on the finished part but differ in processing and regulatory acceptance.

TGIC PolyesterEstablished outdoor system with good weather resistance, leveling and overbake stability. Widely specified for architectural and general outdoor goods.TGIC-Free (HAA) PolyesterUses a hydroxyalkyl amide curing agent instead of TGIC, matching growing regulatory and customer demand for TGIC-free outdoor coatings while retaining good performance.

What Buyers Should Confirm Before Ordering

Service EnvironmentIndoor, sheltered, or outdoor coastal exposure decides resin grade and expected weather class.PretreatmentCleaning and conversion coating (zinc/iron phosphate or chrome-free) strongly affect adhesion and salt spray life.Cure WindowConfirm time at substrate temperature, not oven air, and keep recovered-to-virgin powder ratio stable for consistent finish.Color ConsistencyFor large facades, order from a single production lot or schedule batches together to limit metamerism.ComplianceSpecify required certificates (Qualicoat, ISO, RoHS) up front so they are supplied with the shipment.StorageKeep sealed, dry and below 30°C; allow cold powder to reach room temperature before opening to avoid condensation.

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