Technical Advantages of Super Soft Pad Printing Silicone Hong
In the pad printing industry, printing on irregular curved surface products has always been a technical challenge. Normal hardness pad printing heads cannot fully conform to products with large curvatures and obvious concave convex surfaces, resulting in incomplete pattern printing, blurred edges and missing prints. Hongye Silicone R&D team, after years of technical research, has achieved a major breakthrough in super soft pad printing silicone formula, launching HY-916 super soft pad printing silicone that perfectly solves this industry challenge for customers worldwide.
Formula Technology Breakthrough
Traditional super soft silicone formulas have a contradiction: the lower the hardness, the worse the physical strength of the silicone, and pad heads are prone to tearing and have short service life. Hongye Silicone R&D team has significantly improved the tensile strength and tear strength of the silicone while maintaining super soft hardness, by optimizing molecular chain structure, introducing new reinforcing fillers and adjusting crosslink density.
HY-916 has a hardness of only 16 Shore A, 7 degrees softer than the conventional 23A economy grade, but still achieves tensile strength ≥2.5MPa, tear strength ≥10kN/m and elongation ≥400%, achieving a perfect balance between softness and strength. This formula breakthrough is at the leading level among domestic peers in China, breaking the technology monopoly of imported brands in the super soft pad printing silicone field, and providing global customers with a cost effective alternative.
Core Performance Parameter Analysis
The core performance parameters of HY-916 show outstanding performance in practical applications. First, elongation ≥400%, which means the pad head can be compressed to less than half of its original height during printing, with extremely large deformation, able to reach into concave areas of products and achieve curved surface printing that normal pad heads cannot complete.
Second, operation time of 30-40 minutes and curing time of 2-4 hours. This time window provides operators with sufficient time for stirring, degassing and mold pouring, while ensuring production efficiency, allowing pad heads to be made and used on the same day. Viscosity of 10000mPa.s with fine silicone texture produces smooth surfaced pad heads without particles, with uniform ink transfer.
In addition, HY-916 uses a 100:2 mixing ratio, simple weighing and easy operation, with low technical requirements for operators, allowing beginners to quickly get started. Available in four colors: red, yellow, white and green, meeting different customer color preferences, and custom special colors are also supported for OEM customers.
Practical Application Results Comparison
In practical testing of electronic housing printing, when using normal 23A pad heads to print logos on the side of mobile phone cases, due to the large side curvature, the pad head could not fully conform, resulting in blurred logo edges and partial missing prints, with a defect rate as high as 12%. After switching to HY-916 super soft pad heads, the pad heads perfectly conformed to the side curved surfaces, with complete and clear logo printing, reducing the defect rate to below 1%, significantly improving printing quality.
In cosmetic bottle printing testing, when using normal pad heads to print brand logos on curved perfume bottles, the pattern was clear in the middle but blurred at both ends, with inaccurate overprinting. After using HY-916, the pad heads uniformly conformed to the bottle curved surfaces, producing uniform and consistent logo printing around the entire circumference, with improved overprint accuracy, fully meeting the high quality requirements of the cosmetics industry for premium packaging.
Selection Recommendations Summary
Hongye Silicone technical team recommends: for flat or slightly curved surface product printing, choose HY-901 economy grade (23A), offering the highest cost performance; for multi color overprint fine pattern printing, choose HY-912 multi color universal grade (25A), with good resilience and accurate overprinting; for high frequency mass production automated lines, choose HY-902 high wear grade (28A), with long life and low comprehensive cost; for large curvature, obvious concave convex irregular curved surface products, choose HY-916 super soft grade (16A), with strong conformability and complete printing.
As a professional liquid silicone manufacturer with 25 years of history, Hongye Silicone will continue to invest in R&D, continuously launching pad printing silicone products with better performance, helping printing manufacturers worldwide solve various printing challenges and improve product quality and production efficiency. For more product information or to request free samples, please contact Hongye Silicone technical team.
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