Application Fields Background

About Us

Your trusted partner in metal coating

Guangdong Qingliang Board Technology Co., Ltd.

Guangdong Qingliang Board Technology Co., Ltd. was established in 2014, mainly dedicated to the research and development, production, and sales of double-sided powder coated aluminum coils, steel coils, roof insulation tiles, and wall insulation materials. The company has a 40,000 square meter production factory in Foshan, Guangdong.

Qingliang Board has always been concerned about the trend of green and sustainable development. We believe that sustainability is the future direction of development. Therefore, in the process of product development and production, we pursue the concept of environmental protection and green. Our products comply with national and international environmental standards, providing customers with healthy, green and environmentally friendly choices.

Our Vision

To be the global leader in powder coating technology, delivering sustainable and innovative solutions that exceed customer expectations.

2014 ESTABLISHED
40,000 sqm FACTORY AREA
200+ EMPLOYEES
80,000
tons/year
ANNUAL CAPACITY
💡

Our Values

Our core values drive everything we do

🎯

Quality First

Uncompromising commitment to excellence

🤝

Customer Partnership

Building lasting relationships

🌱

Sustainability

Responsible manufacturing

💡

Innovation

Continuous improvement

🏭

World-Class Facilities

State-of-the-art manufacturing capabilities

Guangdong Qingliang Board Technology Co., Ltd.

Foshan, Guangdong, China
🏭
Production Lines 8 automated lines
👥
Team 200+
📋
Capacity 80,000 tons/year

🏆 Certifications & Standards

ISO 9001:2015 ISO 14001 IATF 16949 CE UL RoHS REACH

Production Process

Our advanced manufacturing process

🔧

Pretreatment Process

Surface Preparation is Key to Quality
01

Our multi-stage pretreatment line thoroughly cleans and prepares the metal surface for optimal coating adhesion. This critical step determines the long-term performance of the finished product.

✦ KEY STEPS

  • Alkaline degreasing removes oils and contaminants
  • Water rinsing to wash away residue
  • Iron phosphate conversion coating
  • Deionized water final rinse
  • Oven drying at controlled temperature
🏭 Equipment: 6-stage horizontal pretreatment line
🎯

Coating Application

Precision Application Technology
02

Advanced electrostatic spray guns apply charged powder particles to the grounded metal surface. This ensures complete coverage even on complex shapes and hard-to-reach areas.

✦ KEY STEPS

  • Corona charging system for optimal wrap
  • Automatic gun positioning for uniformity
  • Film thickness monitoring in real-time
  • Automatic color changeover system
  • Filtered and recycled overspray
🏭 Equipment: Multi-axis robotic spray guns
🔥

Curing Process

Precision Heat Treatment
03

Controlled oven curing completes the powder coating process. The cure schedule is precisely engineered for each formulation to achieve optimal cross-linking and coating properties.

✦ KEY STEPS

  • Preheat zone gradually raises temperature
  • Cure zone maintains target temperature
  • Overbake protection with thermocouples
  • Controlled cooling prevents distortion
  • Peak metal temperature monitoring
🏭 Equipment: Gas-fired convection cure oven

Quality Control

Rigorous Testing at Every Stage
04

Our comprehensive quality control system ensures every coil meets specifications. From incoming raw materials to finished products, we verify performance at critical control points.

✦ KEY STEPS

  • Incoming material certificate verification
  • Pretreatment bath chemistry monitoring
  • Wet film thickness measurement
  • Cured film thickness by X-ray
  • Gloss, color, and appearance inspection
🏭 Equipment: XRF thickness gauges, spectrophotometers
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