Summer Powder Coating Anti-Caking Solutions
Classification: Company News
Jul 27,2026
Frequent Powder Coating Caking & Agglomeration in Summer? Here's the Solution.
High summer temperatures cause powder coating caking across production, storage, transport, and spraying — leading to material waste, reduced efficiency, higher costs, and customer returns. Yijiasheng Chemical delivers proven, end-to-end solutions backed by 12 years of powder manufacturing expertise.
Summer Caking: A Systemic Industry Pain Point
In high-temperature summer environments, powder coatings are highly prone to agglomeration and caking throughout the entire value chain — from production and storage to transportation and end-user spraying. This systemic issue affects every powder coating enterprise.
The consequences are severe: raw material waste, reduced production efficiency, increased manufacturing costs, non-conforming finished products, and damaging customer returns. Data shows that powder can begin to cake at temperatures as low as 35°C — and terminal spray booths routinely reach 45°C in summer.
⚠ Material Waste | ⚠ Production Downtime | ⚠ Customer Returns | ⚠ Quality Defects |
5 Proven Steps to Eliminate Summer Powder Caking
Drawing on years of hands-on powder manufacturing experience, Yijiasheng Chemical provides a comprehensive, multi-link approach — from production equipment upgrades to specialized additive solutions.
1 Extrusion Process Cooling — Prevent Caking at the Source
Dual Temperature Control: Equipment + Process
High-temperature heat accumulation during production is the primary trigger of powder caking. Address this through a two-pronged approach: equipment retrofit with chilled water cooling units on extruder heat dissipation pipelines, and process optimization by reducing roller flaking speed to ensure adequate cooling and prevent residual heat buildup in flakes.
Key Action: Install chilled water cooling on extruder heat pipes + reduce roller speed for sufficient cooling time. |
2 Grinding Process Cold Air Cooling — Eliminate Friction Heat Buildup
Cold Air Injection at Mill Inlet
During grinding, high-speed inter-particle friction generates substantial heat. Combined with summer ambient temperatures, this rapidly causes powder softening, adhesion, and caking. Install a cold air machine at the mill air inlet to continuously feed cold air and reduce chamber temperature.
⚠ Critical Note: Maintain a ~20 cm gap between cold air machine and inlet. Do NOT connect tightly — the cold air machine's airflow is far lower than the exhaust fan's, and tight connection will clog the inlet, impairing ventilation. |
3 Finished Product Low-Temperature Storage — Standardized Cooling
Cold Room Storage with Ventilation Protocol
Freshly ground powder retains substantial residual heat. Stacking at ambient summer temperatures causes rapid caking and agglomeration. Immediately transfer finished powder to a cold storage room after grinding. Place bags on a clean, level floor. Keep bag openings uncovered for ventilation, and periodically shake the powder to ensure uniform cooling throughout.
Best Practice: Cold room storage + open bag ventilation + periodic agitation for uniform heat dissipation. |
4 Avoid the Manual Sieving Misconception — Prevent Terminal Returns
Shortcut Fixes Create Bigger Problems
Some enterprises without cooling equipment resort to post-production manual sieving to process caked powder. This only improves superficial appearance at dispatch — it does not address the root cause. Summer transport heat and spray booth temperatures of ~45°C will trigger secondary caking, leading to customer complaints, batch returns, and significant losses.
⚠ Warning: Manual sieving is a cosmetic fix, not a solution. Secondary caking in transit will cost far more in returns than the upfront investment in proper cooling. |
ICASON Flow Anti-Caking Agent — Your One-Stop Solution
For long-term, effective prevention of summer powder caking and comprehensive spraying optimization, a specialized functional additive is the optimal answer. Introducing ICASON — independently developed by Yijiasheng Chemical.
✓ Eliminates Summer Caking & Agglomeration Effectively prevents powder particles from softening and sticking together under high-temperature conditions across production, storage, and transport. | ✓ |
✓ Enhances Powder Flowability Improves free-flow characteristics, ensuring consistent and uniform powder delivery during the spraying process. | ✓ |
✓ Resolves Insufficient Powder Application Addresses common issues where powder fails to adequately adhere to workpieces, improving transfer efficiency and coating quality. | ✓ |
✓ Eliminates Metallic Powder Gun Clogging & Spitting Specifically formulated to resolve processing issues unique to metallic and effect powder coatings — smoother spraying, fewer defects. | ✓ |
Built on 12 Years of Powder Manufacturing Expertise ICASON is not a generic additive — it is the result of over a decade of hands-on powder production experience and dedicated R&D at Henan ICASON Chemical. Stable performance, broad compatibility, and proven results make it the premium companion product for powder coating enterprises aiming to improve quality, reduce costs, and minimize after-sales losses during the summer season. |
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