Low-temperature curing coatings and energy conservation & emission reduction

2026-07-12 · Category: Technical Knowledge, Paint & Coatings

🌐 This article was automatically translated from Chinese. Please refer to the original Chinese version if needed. · View original (Chinese)
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cover-lowtemp

Traditional baking often requires temperatures above 140°C, with high energy consumption. Low-temperature curing brings the temperature down, saving electricity while protecting the parts.

In a nutshell: Low-temperature/UV curing reduces baking energy consumption and cycle time, and is one of the mainstream directions for energy-saving in coating.

I. Why Energy Consumption Occurs

Traditional thermal curing relies on high-temperature ovens with prolonged heat retention, resulting in high energy consumption and carbon emissions, and also limits the application to heat-sensitive substrates (such as plastics).

II. Low-Temperature Curing Technology

  • Low-temperature electrophoresis: The electrophoretic paint cures at a lower temperature, saving baking oven energy consumption.
  • UV curing: Ultraviolet light initiates polymerization, curing in seconds with almost no heating.
  • Two-component low-temperature: Chemical cross-linking is completed at a lower temperature.
UV curing and low-temperature electrophoresis illustration
Figure: UV and low-temperature electrophoresis significantly reduce curing temperature.

III. Advantages

Dimension Benefit
Energy consumption Baking temperature/time reduced
Cycle time Production line faster
Substrate Can coat heat-sensitive plastics
Carbon emissions Reduced accordingly
Low-temperature curing energy-saving advantage illustration
Figure: Low-temperature curing benefits comprehensively in energy consumption, cycle time, and substrate adaptability.
Trend:Low-temperature/UV curing, combined with primerless and water-based coatings, forms a "low-energy, low-VOC" green painting solution.

Summary

Low-temperature curing, through low-temperature electrophoresis, UV curing, and two-component low-temperature systems, reduces baking temperature and time, directly cutting energy consumption and carbon emissions, improving cycle time, and expanding the application of heat-sensitive substrates, making it a core direction for green coating.

Frequently Asked Questions (FAQ)

How does low-temperature curing save energy?
It reduces the traditional high-temperature, long-time baking above 140℃ to low-temperature or UV second-level curing, thereby significantly lowering baking energy consumption and carbon emissions, while also speeding up the production line cycle.
What is UV curing?
It uses ultraviolet light to trigger rapid polymerization of the coating, achieving second-level curing with almost no heating, extremely low energy consumption, and is suitable for fast painting of flat surfaces and specific shapes.
What are the benefits of low-temperature electrocoating?
The electrocoat is cured at a lower temperature, eliminating the energy consumption of high-temperature baking rooms, while reducing the impact of heat on the vehicle body and equipment, with significant energy savings.
Can low-temperature curing be applied to plastic parts?
Yes. Low-temperature/UV curing avoids high-temperature deformation of plastics, so it can be applied to heat-sensitive plastic parts such as bumpers.
How does it work synergistically with primer-less process?
Low-temperature curing, primer-less process, and water-based coatings together reduce baking passes, temperature, and VOC, forming a green painting combination with low energy consumption and low emissions.
Kexin New Materials · Automotive Coating Technology Library | This article is technical Q&A content, for reference in selection and application

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