SES N 3297 Internal Material Wear

Developed by Suzuki Motor Corporation as part of interior durability/lightfastness testing, the “SES N 3297 Interior Material Wear” standard is a test standard in the automotive industry that evaluates how interior materials change over time under environmental influences.

Interior material weathering refers to the changes that the materials inside a vehicle undergo when exposed to the following external influences:

• UV (sunlight)
• Heat and temperature changes (high/low)
• Gender
• Aging over time

So this test simulates how a material will degrade over the years under real-world usage conditions. In the automotive industry, interior material wear refers to the gradual deterioration of materials inside a vehicle over time due to environmental factors. Simply put, it describes how interior components change when exposed to factors such as sunlight, heat and humidity changes, moisture, and aging over time.

Even though these materials are inside the car, they are greatly affected, especially by sunlight passing through the windows. Interior material aging affects many components. For example,

• Seat upholstery (fabric, leather)
• Instrument panel and dashboard
• Door trims
• Carpets and ceiling coverings
• Plastic and coated surfaces

Over time, materials may undergo the following changes during aging:

• Fading or discoloration
• Cracking, peeling, or deformation
• Brittleness or loss of strength
• The formation of unpleasant odors
• Deterioration of surface quality or texture

According to the test method described in the SES N 3297 standard, properties such as color change (fading), surface deterioration (cracking, blistering, peeling), loss of mechanical properties (hardening or embrittlement), and odor formation (due to material degradation) are generally evaluated.

These tests are usually performed in an accelerated manner using the following equipment:

• UV lamps (xenon arc)
• Temperature and humidity controlled chambers

This test allows manufacturers to choose the following:

• More durable fabrics
• UV-stable plastics
• Improved coatings

In the automotive industry, the SES N 3297 standard is necessary because it ensures that materials inside a vehicle can withstand real-life environmental conditions without unacceptable degradation over time. This standard is considered necessary for the following reasons:

• It guarantees long-term durability: Vehicle interiors are expected to last for more than 10 years. This standard confirms that the materials will not crack, fade, peel, or lose volume under sunlight, heat, and humidity.
• Maintaining customer satisfaction: Drivers constantly see and touch interior components. Materials can create a negative perception of quality, even if the car performs well.
• Losing its colors
• Shows premature wear
• It starts to feel cheap over time.
• Protecting brand reputation: Automotive brands compete intensely on perceived quality. Poor weather resistance performance can lead to:
• Customer complaints
• Warranty claims
• Damage to brand image
• It ensures the correct material selection: Manufacturers use this standard for the following purposes:
• Comparing suppliers
• Choosing UV-resistant plastics and fabrics.
• Improving coatings and surface treatments

Without this standard, material selection would be based on guesswork.

• It simulates real environmental conditions. Vehicles operate in very different climates: hot and sunny climates or cold and humid climates. This standard ensures that the materials perform reliably in all regions.
• It reduces long-term costs: By identifying defective materials early, companies avoid the following:
• Expensive recalls
• Repairs under warranty
• Redesign costs

In conclusion, this standard is necessary because it ensures that interior materials remain durable, visually acceptable, and functional throughout the vehicle's lifespan under real-world environmental conditions. Interior material wear means that the vehicle's interior materials age and deteriorate under real-life environmental conditions.

In conclusion, the SES N 3297 standard stipulates that in-vehicle materials...

• The sun tests how you age through the effects of heat and time.
• It aims to guarantee long-term durability.

This standard ensures that interior materials remain durable, visually acceptable, and functional under real-world environmental conditions throughout the vehicle's lifespan.

For many years, our organization, with its competent and experienced team, has been understanding the needs of its clients, 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 compliant with the SES N 3297 standard.