Pre-Painted Galvanized Steel Coil / Sheet / Plate (PPGI/PPGL)

Q: Q1. How to prevent paint peeling during roll-forming?

A: Use reverse-roll coating primers with >8% elongation. Huaxiao’s FlexiPrime™ technology enables 180° bending at 0T.

Q: Q2. Color stability in tropical UV exposure?

A: PVDF/SMP coatings maintain ΔE≤2 after 10 years Florida exposure (AAMA 2605 data). Avoid standard polyester.

Q: Q4. MOQ for custom RAL colors?

A: 10 MT per color with ΔE≤1.0 guarantee (spectrophotometer report included).

Q: Q5. Warranty terms for architectural applications?

A: 20-year warranty against chalking/fading (ΔE≤5) when installed per Huaxiao’s AMI-2024 guidelines.

Q: Q6. Fire performance ratings?

A: Class A fire-rated panels available with intumescent coatings (ASTM E84 flame spread ≤25).

Huaxiao-Alloy’s Pre-Painted Galvanized Steel combines dual-layer protection: a zinc-based metallic substrate (GI or GL) with advanced polymer coatings – engineered to withstand UV degradation, chemical exposure, and mechanical stress while maintaining color integrity for 20-40 years. Precision-formulated for façades, appliances, and specialty enclosures where performance and aesthetics converge.

1. PRODUCT SPECIFICATIONS & ARCHITECTURE

Base Material Options

Substrate	Standard	Coating Mass	Key Attributes
Galvanized (GI)	ASTM A653	Z60-Z275 (60-275g/m²)	Cost-effective, weldable
Galvalume® (GL)	ASTM A792	AZ60-AZ150 (60-150g/m²)	3-5x cut-edge corrosion resistance
Zinc-Al-Mg (ZM)	EN 10346	AZ100-AZ200 (100-200g/m²)	Self-healing scratches, salt spray >2,000hrs

Coating System Structure

1. Steel Substrate (0.3-3.0mm)
2. Metallic Coating (Zinc/Al-Zn/Zn-Al-Mg)
3. Chromate Conversion Layer (≤15mg/m² Cr⁶⁺-free)
4. Primer (5-8µm): Epoxy/Polyester/Polyurethane
5. Topcoat (15-25µm): PVDF/SMP/Polyester/Siliconized Polyester
6. Clear Coat (Optional): Anti-graffiti/UV-filter

2. COATING PERFORMANCE MATRIX

Coating Type	Gloss (%)	Color Retention (10y)	Salt Spray (hrs)	QUV Resistance	Max Temp
Polyester (PE)	20-80	ΔE≤5	500-800	1,000h	100°C
SMP (Silicone Modified Polyester)	15-50	ΔE≤3	1,000+	2,000h	120°C
PVDF (70% PVDF)	10-40	ΔE≤2	1,500+	3,000h	140°C
Fluoropolymer (FEVE)	40-90	ΔE≤1	2,000+	5,000h	180°C

ΔE = Color shift per ASTM D2244 | QUV = ASTM G154 Cycle 4

3. MECHANICAL & PHYSICAL PROPERTIES

Property	Test Method	Typical Value	Industry Impact
Adhesion	ASTM D3359 (Cross-cut)	Class 5B	Survives forming/stamping
Pencil Hardness	ASTM D3363	2H-4H	Scratch/mar resistance
Impact Resistance	ASTM D2794	90-150 kg·cm	Withstand hail/impact
Flexibility (T-Bend)	ASTM D4145	0T-2T	Compatible with roll-forming
Solar Reflectivity	ASTM E903	80-85% (white)	LEED/EnergyStar compliance

4. STANDARD PRODUCT RANGE

Architectural Grades (AAMA 2603-2605 Certified)

Code	Topcoat/Primer	Substrate	Thickness	Finish
PPG-AP	PVDF/Polyester	GL AZ90	0.5-1.2mm	Matte/Smooth
PPG-SMP	SMP/Epoxy	ZM AZ150	0.4-1.0mm	Texture/Embossed
PPG-FEVE	FEVE/Polyurethane	GI Z180	0.3-0.8mm	High-Gloss

Industrial Grades

Code	Topcoat/Primer	Substrate	Special Features
PPG-EP	Epoxy/Epoxy	GI Z120	Chemical resistance (ISO 2812-1)
PPG-ECP	Conductive Epoxy/Polyester	GL AZ75	EMI Shielding (30-60 dB)
PPG-FR	Intumescent Coatings	GI Z100	Fire Rating (ASTM E84 Class A)

5. INDUSTRY-SPECIFIC SOLUTIONS

Sector	Application	Huaxiao Solution	Certifications
Building Envelope	Curtain walls, roofing	PPG-AP (PVDF)	AAMA 2605, EN 13501-1 B-s1,d0
HVAC	Air handling units	PPG-SMP (Anti-microbial)	NSF/ANSI 51, ISO 22196
Transport	RV siding, trailer panels	PPG-FEVE (Self-cleaning)	GMW14872, SAE J2334
Appliances	Refrigerator doors	PPG-HG (High-Gloss PE)	IEC 60335-2-24, FDA CFR 21

6. HUAXIAO-ALLOY ADVANTAGES

Coating Science Leadership

Color Consistency: ΔE≤0.8 batch-to-batch (HunterLab Spectrophotometry)
Edge Protection: Laser-sealed cut edges + touch-up coating systems
Sustainable Chemistry: Zero Cr(VI), VOCs ≤50g/L (EU Directive 2004/42/CE)

Precision Manufacturing

In-line coil coating (CPM 120m/min) with IR/UV curing
3-stage surface treatment (alkaline clean → rinse → nano-conversion)
Automated defect detection (AOI with 10μm resolution)

Global Compliance & Support

Certifications: QUALICOAT Class 2/3, GSB International, NCCA
Digital Tools: Color matching app, weathering prediction software
Technical Support: On-site forming/welding training

FAQs: Pre-Painted Galvanized Steel Coil / Sheet / Plate (PPGI/PPGL)

Q1. How to prevent paint peeling during roll-forming?

A: Use reverse-roll coating primers with >8% elongation. Huaxiao’s FlexiPrime™ technology enables 180° bending at 0T.

Q2. Color stability in tropical UV exposure?

A: PVDF/SMP coatings maintain ΔE≤2 after 10 years Florida exposure (AAMA 2605 data). Avoid standard polyester.

Q3. Cleaning protocol for façade panels?

A: 1) Low-pressure wash (<100 bar) 2) pH-neutral cleaners 3) Non-abrasive cloths. Download Huaxiao’s MTC-02 maintenance guide.

Q4. MOQ for custom RAL colors?

A: 10 MT per color with ΔE≤1.0 guarantee (spectrophotometer report included).

Q5. Warranty terms for architectural applications?

A: 20-year warranty against chalking/fading (ΔE≤5) when installed per Huaxiao’s AMI-2024 guidelines.

Q6. Fire performance ratings?

A: Class A fire-rated panels available with intumescent coatings (ASTM E84 flame spread ≤25).

Pre-Painted Galvanized Steel Coil / Sheet / Plate (PPGI/PPGL)

1. PRODUCT SPECIFICATIONS & ARCHITECTURE

Base Material Options

Coating System Structure

2. COATING PERFORMANCE MATRIX

3. MECHANICAL & PHYSICAL PROPERTIES

4. STANDARD PRODUCT RANGE

Architectural Grades (AAMA 2603-2605 Certified)

Industrial Grades

5. INDUSTRY-SPECIFIC SOLUTIONS

6. HUAXIAO-ALLOY ADVANTAGES

FAQs: Pre-Painted Galvanized Steel Coil / Sheet / Plate (PPGI/PPGL)

Pre-Painted Galvanized Steel Coil / Sheet / Plate (PPGI/PPGL)

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