Send Message
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
On August 12, 2026, Shenzhen Weijiamei Rubber & Plastic Electronics Co., Ltd. (WJM Silicone) announced a significant quality milestone: after months of focused process refinement, the company's engineering team successfully passed the stringent VOC (Volatile Organic Compounds) and odor testing required for its silicone in-car products, developed for the premium intelligent NEV brand Qijing (AISTALAND) — jointly created by GAC Group and Huawei. The certification marks a major step forward in WJM's journey from a silicone parts manufacturer into a qualified supplier for top-tier smart vehicle interior ecosystems.
For consumers, the quality of a new vehicle's interior is often measured by what can be seen and touched — stitching, surfaces, trim. But for automakers, and especially for a brand like Qijing, one of the most decisive factors is what cannot be seen at all: the air. Interior materials continuously release trace amounts of volatile organic compounds, and the perceived odor inside the cabin is the first and most intuitive impression a customer forms the moment they step into a car.
Qijing, co-created by GAC Group and Huawei, has positioned itself as a premium intelligent NEV brand built on Huawei's full-stack smart technology and GAC's manufacturing heritage. From its first model, the GT7, the brand has applied Huawei's IPD and IPMS systems across the entire development chain, bringing the strictest quality standards of both companies into every component decision. For suppliers, this means interior materials must not only be functional and aesthetically aligned with the cockpit design, but must also satisfy rigorous VOC emission limits and odor grading requirements — benchmarks that go far beyond ordinary automotive accessory standards.
Under these requirements, silicone products — which are increasingly used in smart cockpits for protective covers, device protection and interior components — must prove that they are not only durable and precisely form-fitting, but also clean, stable and nearly odorless under real-world cabin conditions such as high-temperature exposure. Passing this test is a genuine engineering challenge, not a formality.
To meet the VOC and odor requirements, WJM's engineering team conducted a systematic review of the entire silicone production chain. The team recognized early on that passing the test could not rely on a single adjustment; it required coordinated improvements across every stage of manufacturing, from material selection to final processing.
First, the team re-evaluated the raw material supply chain, working closely with material suppliers to select high-purity silicone grades with inherently lower volatile content, and tightening incoming-material inspection standards to ensure batch-to-batch stability. Second, the team rebuilt the compounding and mixing process, optimizing formulation ratios to minimize the generation of low-molecular-weight volatile substances while maintaining the mechanical properties, elasticity and tactile quality that automotive customers expect. Third, process engineers overhauled the curing and post-treatment stages — refining vulcanization parameters and introducing enhanced secondary post-treatment steps designed to drive residual volatiles out of the finished parts. Throughout the campaign, every candidate formulation and process configuration was subjected to repeated internal testing under accelerated aging and high-temperature conditions, with the team iterating across multiple rounds of samples until the results consistently met the required VOC emission limits and odor grading.
The entire effort reflected WJM's core engineering philosophy: that product quality is not inspected into a part, but built into the process. By taking ownership of every variable — raw material purity, formula design, molding parameters and post-treatment — the team turned a demanding customer requirement into a repeatable, documented manufacturing capability.
Passing the Qijing VOC and odor testing carries significance well beyond a single project. For WJM, it validates that the company's silicone products have reached the environmental and safety standards expected by one of the most demanding intelligent vehicle brands in the market today. It is also a signal to the wider NEV supply chain: WJM silicone parts are verified for low-emission, odor-controlled performance under premium vehicle specifications.
For OEMs and Tier 1 suppliers, the certification shortens qualification cycles and reduces risk. When a supplier's process is already proven against stringent VOC and odor requirements, downstream customers can integrate the products into their own vehicle programs with greater confidence — knowing that interior air quality, regulatory compliance and consumer experience considerations have been addressed from the very beginning of the supply chain.
As smart vehicles continue to add displays, terminals, sensors and other precision devices throughout the cockpit, the demand for durable, eco-friendly, precisely form-fitting silicone protective parts will only grow. WJM's achievement positions the company to serve this expanding market with a strong technical foundation.
"In the era of intelligent vehicles, interior air quality is a core part of the premium experience," said a representative of WJM's engineering team. "For us, passing the Qijing VOC and odor test is not a finish line — it is proof that our process discipline delivers, and a baseline we intend to raise continuously. We will keep investing in low-emission material research and process innovation so that every silicone part we ship contributes to a cleaner, healthier cabin."
This milestone is part of WJM's broader commitment to the smart vehicle era. Building on its strengths in silicone product R&D and manufacturing, the company will continue to deepen its cooperation with NEV brands, OEMs and Tier 1 suppliers — providing custom mold development, rigorous material selection, and continuously upgraded production processes for automotive silicone protective covers, interior components and device protection solutions. With technology and quality at its core, WJM aims to become a trusted long-term partner for premium vehicle programs, delivering parts that meet not only dimensional and functional specifications, but also the invisible standards — like air quality — that define the modern driving experience.
— About WJM Silicone —
Shenzhen Weijiamei Rubber & Plastic Electronics Co., Ltd. (WJM Silicone) is a manufacturer specializing in the R&D and production of silicone products, with a long-standing focus on automotive silicone protective covers and interior components. With mature molding processes, rigorous quality control and custom mold development capabilities, WJM serves OEMs and Tier 1 suppliers in domestic and international markets. Visit wjsilicone.com or contact sales@wjsilicone.com for more information.
Email to this supplier
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Fill in more information so that we can get in touch with you faster
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.