Process Background

Surface Treatment Technology

Advanced Surface Treatment

Comprehensive analysis of PVDF & Powder Coating Technologies

PVDF Fluorocarbon Coating

PVDF Fluorocarbon Coating

PVDF spraying is a high-performance surface treatment technology widely used in the production of metal curtain wall aluminum veneers. This process not only provides excellent corrosion resistance but also ensures that the building's appearance remains aesthetic for a long time.

Process Flow

Step 1: Surface Pre-treatment (13 Steps)

Degreasing → Rinsing → Alkaline Wash → Rinsing → Acid Wash → Rinsing → Chromizing → Rinsing → Pure Water Rinse

Step 2: Spraying

Primer → Top Coat → Clear Coat

Step 3: Curing

230°C+ High Temperature Curing

Step 4: Inspection

Thickness, Color Difference, Adhesion Test

Coating Structure

3-Coat System (Standard)

Primer + Top Coat + Clear Coat

4-Coat System (High Weatherability)

Primer + Barrier Coat + Top Coat + Clear Coat
For strong corrosive environments like coastal areas

5-Coat System (Special)

Primer + Barrier + Top + Clear + Self-cleaning Coat

Coating Functions

  • Primer Improves permeation resistance, enhances substrate protection, and strengthens adhesion.
  • Top Coat Provides decorative color, protects metal surface from environmental erosion, prevents UV penetration.
  • Clear Coat Enhances coating resistance to external erosion, protects top coat, increases metallic gloss.

Component: PVDF

Uses high-quality Polyvinylidene Fluoride resin. Features excellent weather resistance, UV resistance, superior chemical corrosion resistance, and outstanding color retention.

Color Options:

RAL/Pantone Standard Stone/Wood Grain Metallic/Pearlescent Custom Matching

Powder Coating Technology

Powder Coating Technology

Powder coating is an excellent surface treatment technology. We adopt updated processes to provide high-quality, eco-friendly, and durable solutions. Features include: solvent-free zero VOC emissions, hard and wear-resistant coating, consistent thickness, and smooth appearance.

Process Flow

  1. 1

    Surface Pre-treatment

    Cleaning → Degreasing → Rinse → Passivation → Rinse → Drying

  2. 2

    Electrostatic Spraying

    Powder Adsorption, Single Layer (60-120μm)

  3. 3

    High-temp Curing

    180-200℃ Curing for 15-25 mins

  4. Cooling & Inspection

Powder Type Comparison

Type Main Component Warranty Application
Weather Resistant Polyester Resin 5-10 Years General Facade, Windows
Super Weather Resistant Modified Polyester 10-25 Years High-end Building, Coastal
PVDF Powder PVDF Resin 20-30 Years Landmarks, Harsh Env.
Special Structure: Double-layer structure (Anti-corrosion Primer + Decorative Top) available for special requirements.

Contact Us

Whether for project consultation, sample requests, or business cooperation, the Yuansheng team is ready to provide professional support.

Production Base

No. B1-2, Kechuang Zhigu Industrial Park
Zhangzhuang Town, Yucheng City, Shandong

Headquarters

Beijing Zhongxin Lichuang Decoration Material Co., Ltd.

Online Inquiry