Pad Printing Silicone Common Defect Troubleshooting Bubbles Faint Patterns and Edge Issues Solved

Bubbles inside pad heads cause dot missing in patterns. Causes: fast stirring traps air, insufficient degassing, fast pouring creates impact bubbles. Solutions: stir slowly same direction, degas at least 5 minutes, pour slowly from one side.

Faint Patterns

Fuzzy patterns relate to pad hardness and rebound. Too soft causes over deformation, too hard causes poor contact. Ink viscosity and plate depth also matter. Solutions: choose right hardness by product shape, adjust ink, check plate depth.

Rough Edges

Burrs on pattern edges from surface blemishes, wrong ink concentration, excessive machine pressure, misalignment. Solutions: clean mold, adjust ink, reduce pressure, calibrate alignment.

Poor Adhesion

Patterns wipe off due to ink mismatch or surface contamination. Solutions: use matching ink, clean surface with alcohol, corona treatment if needed, bake after printing.

Tearing Damage

Pad heads tear from wrong model selection, forceful demolding, high temperature aging. Solutions: use HY-912 high tear for high volume, handle carefully during demolding, control temperature.

Shrinkage Deformation

Dimension changes from inaccurate catalyst ratio or heated curing. Solutions: weigh precisely 100:2 to 100:3, room temperature cure, rest 24 hours before use.