Extrusion & Post
6 مشاهدة
PETG poor adhesion during printing
ظاهرة المشكلة
The ink adhesion on the PETG product surface is insufficient, easily peeling off or being scratched.
تحليل الأسباب
PETG surface energy is low (about 30-36mN/m), the surface has mold release agent or oil contamination residue, and the ink system does not match.
الحل
Corona treat the product surface to a dyne value ≥42mN/m; clean with alcohol before printing; select an ink system suitable for polyester.
الخلاصة الأساسية
PETG printing adhesion depends on surface treatment and ink matching.
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