Reduce from 1000 μ m to 300 μ m! New energy vehicle bottom coating ushers in lightweight technology revolution

Under the wave of lightweight, low-carbon, and high-end iteration of new energy vehicles, a long-term solidified chassis protection technology logic is being completely overturned. For many years, the protection of the bottom of automotive chassis has always followed the traditional principle of "thicker, safer". Relying on a 1000 μ m thick film PVC solvent based coating, it can resist damage caused by stone impact, road friction, acid and alkali corrosion during driving, and is the main solution for power battery bottom protection and chassis protection. But with the upgrading of industry technology and the iteration of policy standards, this traditional model of "stack thickness and heavy protection" is no longer suitable for the development needs of new energy vehicles in the new era. A comprehensive transformation of bottom protection technology from "heavy protection" to "efficient thin coating" has begun.
Behind the technological changes in the industry is the driving force of multiple market and policy factors. Currently, magnesium aluminum alloys and high-strength composite lightweight materials have been widely used in new energy vehicle chassis, battery casings, and electric drive components. Vehicle weight reduction, energy consumption reduction, and range improvement have become the core research and development directions of automotive companies. The traditional ultra thick PVC coating has high self weight and material consumption, which is in clear conflict with the trend of vehicle lightweighting. At the same time, the popularization of the power exchange mode and the increase of high-frequency operating vehicles have kept the car chassis under the harsh working conditions of high-frequency friction, mechanical impact and complex corrosion for a long time, putting forward higher requirements for the wear-resistance, anti-skid, anti-aging and weather resistance of the primer coating.
In addition, environmental regulations in the global automotive industry continue to tighten, and VOCs emission control, low-carbon production, and green manufacturing standards are constantly upgrading. Traditional solvent based PVC thick film coatings have shortcomings such as high VOC emissions, high material loss, and high energy consumption. This not only puts enormous environmental pressure on the production process, but also makes it difficult to meet the core requirements of low-carbon and compliant production for automotive companies. Under the superposition of multiple contradictions, the industry has completely abandoned the old idea of "relying solely on film thickness to stack protective performance" and instead explored a new type of bottom coating solution that is lightweight, high-performance, zero VOC, and mass-produced.

Intepeng, who won the Edison Award in 2026 ® Interpon A1000 anti stone impact and wear-resistant powder coating provides a mature landing path for industry technology iteration, completely breaking the inherent understanding of "thin film=performance degradation". Data shows that the traditional PVC base coating construction film thickness generally reaches over 1000 μ m, while the optimal construction film thickness of Interpon A1000 powder coating by Interpon is only 200-300 μ m, with a film thickness reduction of over 70%, significantly reducing the coating weight and material consumption, perfectly adapting to the needs of vehicle lightweight upgrading.
While significantly reducing the film thickness, the powder coating has achieved a comprehensive upgrade in protective performance, accurately adapting to the complex working conditions of new energy vehicles. For the use scenarios of high-frequency plugging and mechanical contact in battery swapping equipment, the coating has high wear resistance and anti slip characteristics, which can resist long-term reciprocating friction loss and will not wear down the rollers of the battery swapping equipment, making it suitable for commercial high-frequency operation scenarios. At the same time, relying on excellent weather resistance and anti-corrosion performance, it can easily cope with complex road conditions such as extreme cold, salt spray, high humidity, and strong ultraviolet radiation, maintaining long-term stability of chassis and battery component protection, and solving the industry pain points of traditional thick coatings that are prone to aging, peeling, and corrosion failure.

Compared to traditional solvent based systems, the environmental and mass production advantages of the new powder coating are more prominent. Interpon A1000 powder coating achieves nearly zero VOC emissions, completely avoiding the environmental pollution problem of solvent based coatings, fully in line with the policy orientation of green manufacturing and low-carbon transformation in the automotive industry. At the same time, the material recovery rate of the product is as high as 95%, and the material utilization rate is greatly improved, effectively reducing production costs and energy consumption, balancing environmental and economic benefits, and possessing the conditions for large-scale industrialization.
At present, this high-performance thin powder coating has been applied on a large scale in multiple NIO new energy vehicle models. After multiple scenarios of actual vehicle verification, its technical stability and adaptability to working conditions have been recognized by the market. With the continuous increase in the penetration rate of lightweight materials in automobiles, magnesium aluminum alloy materials are widely used in core components such as battery bottom plates, electric drive housings, motor housings, heat dissipation components, controller housings, etc. The industry's requirements for anti-corrosion adaptability and long-term stability of coatings continue to upgrade, and the application scenarios of high-performance thin powder coatings are continuously expanding.
Industry analysts say that the iteration of automotive bottom protection coatings from 1000 μ m to 300 μ m is not simply a material thinning, but a systematic upgrade of automotive chassis protection technology. The logic of industry competition has completely changed. In the past, we competed for coating thickness and material usage, but now we compete for comprehensive technical capabilities in material system, structural adaptation, working condition compatibility, and long-term reliability.
With the continuous high-quality development of the new energy vehicle industry, lightweight, low-carbon, and high-performance will become the core development direction of chassis protection technology. The popularity of thin and high-performance powder coatings, represented by the Yingte Peng A1000, marks the official farewell of the "heavy protection era" for automotive bottom protection, entering a new stage of precision protection that is lightweight, efficient, green, and long-lasting. It will also continue to promote technological innovation and industrial upgrading in the surface treatment industry of new energy vehicle components.