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Technical Q&A

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Shrinkage porosity

Release Date:

2026-03-20

Possible causes:

(1) Contaminated

(2) Insufficient addition of leveling agent

(3) Poor dispersion

(4) External Contamination

(5) Raw Material Quality

(6) Process control or environmental factors

Proposed solution:

(1) If the leveling agent is insufficient, it must be replenished;

(2) For craters caused by contamination, the HuanYu HY518 anti-interference agent can be added to the formulation to eliminate surface tension differences at contaminated spots and enhance the coating’s resistance to contamination. Scope of application: mild contamination or preventive addition.

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