Hyundai-Kia MS655-15 Painting - Exterior Plastic Parts

The “Hyundai-Kia MS655-15 Painting - Exterior Plastic Parts” standard, developed by Hyundai-Kia Motor Company, describes the performance and quality requirements for paint systems applied to exterior plastic components in Hyundai and Kia vehicles.

This standard applies to painted plastic parts exposed to the external environment. For example,

• Tampons
• Side mirror housings
• Door handles
• Grids
• Wheel arch slats
• Other trim parts made from thermoplastic or similar materials.

Unlike interior or under-the-hood applications, exterior parts must withstand harsh conditions such as those listed below:

• UV radiation and sunlight exposure
• Exposure to weather conditions (rain, snow, extreme temperatures)
• Road debris and stone scattering
• Chemical exposure (road salts, bird droppings, tree sap, car wash chemicals)
• Mechanical stresses (stretching, vibration)

The Hyundai-Kia MS655-15 standard updates the Hyundai-Kia MS 655-08 standard, which includes detailed tables for paint types, coating thickness, adhesion, scratch resistance, impact resistance, and other performance tests.

This standard generally includes the following tests:

• Adhesion (shear or tensile tests)
• Scratch and abrasion resistance
• Impact resistance (e.g., gravel gauge or drop tests)
• Chemical resistance (fuels, oils, cleaners)
• Weather resistance (accelerated UV, xenon arc, humidity cycling)
• Color and gloss preservation
• Environmental cycle tests (thermal shock, humidity)
• Coating thickness and homogeneity

These tests ensure that painted plastic parts retain their appearance and function for the life of the vehicle, typically 10 years or at least 150.000 km.

Relevant standards include MS 652-14 and MS 652-15 (painting or moisture resistance cycles on rigid thermoplastics). Additionally, MS 655-08 is a related version focusing on painted rigid thermoplastic parts with detailed performance criteria.

This standard reflects Hyundai and Kia’s commitment to high-quality, long-lasting exterior coatings and contributes to their improved reputation for vehicle durability and corrosion resistance in recent model years.

Major car manufacturers like Hyundai and Kia use detailed internal standards to define how parts should be tested and qualified (specifically surface treatments, materials, colors, and durability). In this context, the Hyundai-Kia MS655-15 standard is designed as a specification or test method related to exterior plastic parts and their paint/coating quality (e.g., surface properties, weather resistance, adhesion, etc.). Therefore, this standard is more of a technical performance or quality standard used by the manufacturer.

The Hyundai-Kia MS655-15 standard is considered essential to ensure that exterior plastic parts and coatings meet stringent performance, durability, and appearance requirements before being used on manufactured vehicles. The main reasons why this standard is considered so important are as follows:

• Ensures long-term durability: Exterior plastic parts (bumpers, mirror housings, trims, spoilers) are constantly exposed to:
• UV radiation
• Rain and humidity
• Temperature fluctuations
• Road salt and chemicals
• Car wash wear

This standard defines how coatings should perform under these stresses. Without these standards, parts may fade, peel, crack, or discolor prematurely.

• It protects brand image and customer satisfaction: Paint defects or coating failures are highly visible and negatively affect:
• Vehicle resale value
• Customer's perception of quality
• Warranty costs

By implementing this standard, Hyundai and Kia ensure a consistent surface appearance across their global production.

• Reduces warranty and recall risk: Coating failures can lead to:
• Layer separation
• Corrosion in the underlying components
• Expensive warranty claims

A validated standard reduces variability in supplier performance and prevents costly post-production problems.

• Standardizing global supplier quality: Hyundai and Kia work with hundreds of global suppliers. This standard,
• It provides a clear technical standard.
• It aligns all suppliers with the same testing criteria.
• It ensures that parts from different factories perform the same way.

This is crucial in large-scale automotive production.

• Supports regulatory and environmental compliance: Automotive coatings must also comply with the following:
• Volatile organic compound regulations
• Environmental durability requirements
• Regional climate differences

These and similar standards help ensure compliance before parts go into production.

In short, the Hyundai-Kia MS655-15 standard,

• It preserves the vehicle's appearance.
• Provides long-term coating performance.
• Reduces warranty risk.
• It standardizes supplier quality.
• It protects brand reputation.

For automotive manufacturers, surface finish is not just a cosmetic element, but also a critical factor in reliability and cost control.

In short, the Hyundai-Kia MS655-15 standard is part of a broader internal labeling system that automakers use to define how materials, coatings, and components must perform in tests before being approved for use in their production vehicles.

For many years, our organization, with its competent and experienced staff, has been understanding the needs of its customers, providing the advanced testing services they require, and assisting them in the establishment, implementation, and improvement of management systems. Within this framework, we also provide testing services to businesses in accordance with the "Hyundai-Kia MS655-15 Painting - Exterior Plastic Parts" standard.