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Wrinkle Powder Coatings

Wrinkle powder coating is a specialized textured coating that utilizes unique formulation design and curing technology to create controlled shrinkage during the melt-leveling process, generating consistent leather-like or hammered pattern textures. This coating represents an optimal solution that combines both functional performance and aesthetic appeal. It maintains an irreplaceable position in industrial protection sectors, particularly suitable for metal products requiring both durability and enhanced visual sophistication. Currently, it is extensively applied in indoor and outdoor metal products across various industries including hardware, security doors, instruments and meters, distribution cabinets, machinery, equipment, metal furniture, home appliances, and garden equipment.

Wrinkle powder coatings are decorative finishes that impart unique textures to object surfaces. Their uneven surfaces scatter light, preventing glare that strains and fatigues the eyes. After spraying and curing, the coating film forms a distinctive wrinkled pattern. This wrinkle effect is primarily achieved by adding texturing agents and reducing the curing system and leveling agents. The texturing agent serves as the core additive. During powder melting and curing, it alters the local surface tension of the coating film, inducing regular “Benard cell” contractions that form the wrinkles. Additionally, formulations typically deliberately reduce or omit leveling agents while selecting specific curing agents and accelerators to control melt viscosity. This allows gelation and curing to occur before complete leveling, effectively “locking in” the texture. Typically, adjusting the type and quantity of texturing agents allows control over wrinkle size and depth.

Wrinkle powder coating not only effectively conceals substrate imperfections but also provides durable protection that meets modern standards while inheriting a classic texture. It has evolved from a mere protective layer into a vital design language, providing manufacturers with a powerful tool to enhance product value and build differentiated market competitiveness. When you choose the wrinkled texture, you are not just selecting a coating—you are choosing an enduring quality and a lasting guardianship for your product. It represents an excellent coating choice that combines functionality with aesthetic appeal. It holds an irreplaceable position in industrial protection, particularly suited for metal products requiring both durability and enhanced product value through appearance. Currently, it is widely used for coating applications in indoor and outdoor products such as hardware, security doors, instruments and meters, distribution cabinets, machinery, equipment, metal furniture, home appliances, and garden equipment. Although dark shades like black, dark gray, and army green are most common, customization to incorporate other desired effects is also possible. Our wrinkle powder coatings are available in a wide range of colors, with different gloss levels and textures.

Advantages of Wrinkle Powder Coatings

  • Exceptional decorative appeal: Featuring a three-dimensional, aesthetically pleasing texture with a vintage, high-end feel that enhances the product's value.

  • Excellent Defect Concealment: The inherent three-dimensional texture effectively masks minor substrate imperfections such as scratches, dents, orange peel, or weld seams, substantially reducing pre-treatment requirements while improving production yield and efficiency.

  • Comfortable Tactile Feel and Practicality: The textured surface provides an anti-slip, smooth grip that improves user handling and operational experience – particularly suitable for tools, instruments, and frequently handled objects.

  • Outstanding Physical Durability:The tough coating offers exceptional impact resistance, abrasion resistance, and scratch resistance, effectively protecting products during transportation, installation, and daily use to extend service life.

  • Good Chemical Resistance: Particularly in epoxy-based wrinkled coatings, which demonstrate strong resistance to common chemicals (e.g., acids, alkalis, solvents, oils) for easy cleaning and maintenance.

Detailed Information

Item No.

Test Item

Test Method

Test Result

01

Film Thickness

KETT Electromagnetic Thickness Gauge

60-80μm

02

Storage Stability

Storage at 40°C for 3 weeks

No caking

03

Particle Size Analysis

MALVERN 2600 Particle Size Analyzer

D[V,0.5]: 36-40μm

04

Color Difference

Datacolor Colorimeter

ΔE < 0.5

05

Pencil Hardness

Pencil Hardness Tester

1H

06

Impact Resistance

ERICHSEN Testing Machine

50 kg·cm

07

Adhesion

Cross-cut Test 1mm×100

100%

08

Application Method

Electrostatic Spraying

09

Curing Condition

200℃×10mins (Substrate Temperature)

10

Appearance

Powder

11

Color and Gloss

Customizable, suitable for all colors and gloss.

12

Coverage(@60μm)

9-12/kg

13

Specific Gravity

1.2-1.7g/cm3 up to colors

14

Shelf Life

12 months at dry ventilation conditions below 30℃

15

Certification

ROHSREACHISO9001


Classification and Typical  Applications

Classification Basis

Type

Key Characteristics

Typical Applications

Wrinkle Profile

Fine Wrinkle

Delicate, uniform, and elegant appearance

Instruments, small appliances

Medium Wrinkle

Versatile, balances aesthetics and functionality

Cabinets, office equipment, furniture

Heavy/Bold Wrinkle

Strong visual impact, industrial style

Heavy machinery, outdoor facilities

Resin System

Epoxy-Based

High hardness, excellent chemical resistance, poor weather-resistance

Indoor enclosures, tools, electrical housings

Hybrid (Polyester/Epoxy)

Cost-effective, good overall performance

General-purpose indoor metal products

Pure Polyester-Based

Excellent weather-resistance , UV resistance

Outdoor cabinets, lighting, fencing

Package and Storage

25 kgs/box, dry ventilation conditions below 30℃.

Feel free to contact us for customized products' specification and package

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