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NJ Series 10-year Warranty High-Durability Polyester Series Powder Coatings-AAMA 2603 / Qualicoat Class 1

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NJ Series 10-year Warranty High-Durability Polyester Series Powder Coatings-AAMA 2603 / Qualicoat Class 1

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产品详情

Product Description

Rivers NJ Series High Durable Polyester Powder Coatings are high-performance powder coatings based on highly weatherable polyester resin and TGIC curing agent. The series is mainly used for high-performance coating in architectural, automotive parts, outdoor traffic facilities and other exterior applications. The products meet AAMA 2603 and Qualicoat Class 1 requirements and provide good weathering resistance, film integrity and colour retention, together with corrosion protection and resistance to packaging-material damage.

Powder Properties

Item	Technical Data
Chemical type	Polyester TGIC
Appearance and finish	Subject to specific product; gloss, satin, matt and special effects available
Particle size	30-40μm
Gloss	Subject to specific product
Specific gravity	1.2-1.7 g/cm³, depending on colour and effect
Storage conditions	Sealed and stored in dry, cool conditions below 30°C
Shelf life	12 months below 30°C in the original sealed packaging
Curing schedule (Object temperature)	15 min @ 200°C；10 min @ 210°C Improper curing may result in loss of colour, gloss and film properties.
Typical film thickness	60-80 μm for performance testing; actual film thickness shall follow project requirements
Typical specifications	AAMA 2603 / Qualicoat Class 1 / GB/T 5237.4 Class 1

Mechanical Properties

Test Item	Standard	Result
Dry adhesion	ASTM D3359 / ISO 2409	Pass: 5B / Grade 0, no removal of film
Boiling water adhesion	Qualicoat 2.16 / AS3715 2.5.11	Pass: result 0; pressure-cooker test passed
Impact resistance	ASTM D2794 / EN ISO 6272	Pass: 2.5 Nm, no removal of film after tape pull test
Cupping test	ISO 1520	Pass: 5 mm deformation, no cracking or detachment
Bend test	ISO 1519	Pass: 5 mm mandrel
Indentation	EN ISO 2815 (Buchholz)	Pass
Pencil hardness	ASTM D3363	Pass: minimum H

Note: Reduced gloss or special-effect finishes may show slightly different mechanical performance values.

Chemical / Durability Properties

Test Item	Standard	Result
Humidity resistance	ASTM D2247 / DIN 50017	Pass: 1500 h by ASTM D2247; 1000 h by DIN 50017, blistering within prescribed limits
Mortar resistance	ASTM D3260 / QUALICOAT / EN 12206-1	Pass: no flaking or other visible changes after 24 h
Sulphur dioxide	EN ISO 3231 (Kesternich)	Pass: no blistering, loss of gloss or discolouration
Chemical resistance	-	Good: tested with common acids, alkalis and oils at room temperature
Colour stability	Continuous heat exposure	Excellent performance for continuous exposure up to 120°C

Corrosion Resistance

Test Item	Standard	Result
Acetic acid salt spray	ISO 9227 / EN ISO 9227	Pass: 1000 h; no corrosion creep more than 2 mm from scribe
Neutral salt spray	ASTM B117	Pass: 1500 h

**Actual corrosion resistance depends on substrate type, pretreatment quality, coating system, and application process.

Exterior Durability

Test Item	Standard	Result
Artificial accelerated weathering	ISO 11341	Pass: 1000 h; gloss retention and colour change within Class 1 requirements
Exterior durability	AAMA 2603	Pass: 1-year Florida exposure, 45° south-facing; colour change and gloss retention within prescribed limits
Extended exterior exposure reference	Florida exposure	Excellent performance in 3-year exposure reference; project suitability depends on actual colour, pretreatment, film thickness and validation results