Market Background

Southeast Asia’s automotive industry continues to expand as global OEMs and Tier suppliers increase local production for both regional and international markets. Along with rising vehicle output, expectations for interior quality and cabin comfort have become more stringent. In particular, vehicle manufacturers are placing greater emphasis on controlling odor and volatile organic compound (VOC) emissions from interior materials.

As consumer awareness of in-cabin air quality grows, interior adhesives are no longer evaluated solely on bonding performance. Materials that emit strong odors or contribute to elevated VOC levels can negatively impact passenger comfort and may fail to meet OEM interior standards. As a result, low-odor and VOC-controlled solutions are increasingly required for modern automotive interior applications.

Customer & Application Scenario

The customer is a Southeast Asian automotive material supplier developing adhesives solutions for OEM and Tier customers focused on interior assembly. Typical applications include sealing and bonding trim components, interior panels, and joints within the vehicle cabin, where materials are used in close proximity to passengers.

Key application requirements included:

• Low odor to improve cabin comfort during and after assembly
• Controlled VOC emissions aligned with OEM interior standards
• Stable elastic behavior under vibration and thermal cycling
• Consistent application performance in automated or manual processes

The customer sought a adhesive solution that could support interior air quality requirements without compromising durability or process stability.

Our Solution

To meet these requirements, the customer adopted a low-odor, VOC-controlled SMP-based adhesives system formulated using Risun SMP polymer technology, specifically optimized for automotive interior environments.

Key technical characteristics of the solution include:

• Polymer technology: SMP (Silane-Modified Polyether) polymer
• Odor profile: Low-odor formulation suitable for enclosed cabin spaces
• VOC performance: VOC-controlled design aligned with automotive interior requirements
• Curing mechanism: Moisture-curing under ambient conditions
• Elastic behavior: Flexible and durable bonding under vibration
• Application behavior: Smooth extrusion and stable handling

The SMP-based formulation minimized odor generation during curing and reduced the presence of volatile components, helping improve cabin air quality. At the same time, the moisture-curing mechanism supported reliable curing without introducing additional solvents or processing complexity.

Customer Feedback

Following evaluation and pilot production, the customer reported noticeable improvements in odor perception during interior assembly and early vehicle usage. Assembly teams highlighted improved working conditions due to reduced odor exposure. OEM feedback indicated better alignment with interior air quality targets during validation testing.

From a production standpoint, the customer noted stable processing behavior and consistent quality across batches. The balance between low odor, controlled VOC performance, and reliable elasticity helped position the product as a suitable solution for interior-focused applications.

Summary

This case illustrates how low-odor, VOC-controlled SMP adhesive solutions can effectively address the evolving interior quality requirements of the automotive industry in Southeast Asia. By leveraging Risun SMP polymer technology, the customer successfully developed a adhesive that supports improved cabin air quality while maintaining durable elastic performance and application reliability. Such application-oriented SMP solutions provide a practical pathway for automotive material suppliers responding to air quality–driven interior standards.