Pad Printing Head Defect Troubleshooting Quick Guide
author: Lulu
2026-09-16
Pad printing heads frequently develop defects that affect printing quality and production efficiency. Here are the most common issues and practical solutions.
Bubbles and Pinholes
Caused by air entrapment during mixing and pouring. Solution: mix gently, pour slowly from one side, and vacuum degas for 3 to 5 minutes at 0.08 to 0.1 MPa.
Incomplete Curing
Caused by insufficient curing agent, poor mixing or low temperature. Solution: weigh accurately at 100:2 to 100:3 ratio, mix thoroughly scraping all surfaces, maintain temperature above 15°C.
Blurred Patterns
Caused by mismatched pad hardness, dirty pad surface or incorrect ink viscosity. Solution: select appropriate hardness, clean pad before each run, adjust ink viscosity seasonally.
Cracking and Tearing
Caused by low tear strength material or high frequency operation. Solution: use high tear strength silicone such as HY-912 with 25±2 kN/m, schedule 合理 production rhythm, avoid contact with sharp edges.
Conclusion
Selecting quality silicone materials and following proper operation procedures prevents most pad defects. Hongye Silicone full range products undergo strict quality testing with free technical support.
Caused by air entrapment during mixing and pouring. Solution: mix gently, pour slowly from one side, and vacuum degas for 3 to 5 minutes at 0.08 to 0.1 MPa.
Incomplete Curing
Caused by insufficient curing agent, poor mixing or low temperature. Solution: weigh accurately at 100:2 to 100:3 ratio, mix thoroughly scraping all surfaces, maintain temperature above 15°C.
Blurred Patterns
Caused by mismatched pad hardness, dirty pad surface or incorrect ink viscosity. Solution: select appropriate hardness, clean pad before each run, adjust ink viscosity seasonally.
Cracking and Tearing
Caused by low tear strength material or high frequency operation. Solution: use high tear strength silicone such as HY-912 with 25±2 kN/m, schedule 合理 production rhythm, avoid contact with sharp edges.
Conclusion
Selecting quality silicone materials and following proper operation procedures prevents most pad defects. Hongye Silicone full range products undergo strict quality testing with free technical support.
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