HY-916 16 Shore A Super Soft Pad Printing Silicone High Elongation 400% for Irregular Curved Surface Printing

HY-916 is a premium super soft Pad Printing Silicone engineered by Shenzhen Hongyejie Technology Co., Ltd., specifically designed to solve the technical challenge of printing on irregular curved surfaces. With a hardness of only 16 Shore A and elongation exceeding 400%, this product delivers exceptional conformability to products with large curvatures and obvious concave convex surfaces, achieving print quality that normal hardness pad heads cannot match.

The formula development represents a significant technical breakthrough. Traditional super soft formulas suffer from poor physical strength and short service life, but HY-916 achieves an optimal balance between softness and durability through optimized molecular chain structure, nano reinforcing fillers and precise crosslink density control. The result is a pad head material that is both extremely soft and reliably durable, with tensile strength ≥2.5MPa and tear strength ≥10kN/m.

HY-916 operates on a simple 100:2 mixing ratio with 30-40 minutes working time and 2-4 hours room temperature curing, providing an efficient production workflow. The 10000mPa.s viscosity ensures fine texture and smooth pad head surfaces with uniform ink transfer. Available in red, yellow, white and green, with custom color options available.

This product is widely applied in electronics housing printing (mobile phone cases, remote controls, computer mice, chargers), cosmetic packaging printing (cosmetic bottles, perfume bottles, lipstick tubes, mascara tubes), and toy/gift/craft curved surface printing. Trusted by customers in over 138 countries with stable supply from our 16,500 sqm production base with 500 tons monthly capacity.

Core Features

• 16 Shore A super soft hardness, exceptional conformability to complex curved surfaces

• Elongation ≥400%, large deformation capability for deep concave area printing

• Tensile strength ≥2.5MPa, tear strength ≥10kN/m, flexible yet durable

• Formula breakthrough achieving perfect balance between softness and strength

• 100:2 mixing ratio, 30-40 min working time, 2-4 hour room temperature cure

• Viscosity 10000mPa.s, fine texture, smooth pad head surface

• Uniform ink transfer, clean pickup, thorough release, sharp clear patterns

• Available in red, yellow, white, green, custom colors supported

• Ideal for electronic housing, cosmetic packaging and toy curved surface printing

• 25 years experienced manufacturer, ISO 9001 certified, exported to 138 countries

Technical Parameters Table

表格

Model Color Hardness(Shore A) Viscosity(mPa.s) Operation Time(min) Cure Time(h) Tensile Strength(MPa) Tear Strength(kN/m) Elongation(%) Mix Ratio Density(g/cm3)

HY-916 Red/Yellow/White/Green 16±2 10000±2000 30-40 2-4 ≥2.5 ≥10 ≥400 100:2 1.10±0.03

HY-901 Red/Yellow/White/Green 23±2 12000±2000 30-40 2-4 ≥3.0 ≥12 ≥300 100:2 1.12±0.03

HY-902 Red/Yellow/White/Green 28±2 15000±2000 30-40 2-4 ≥4.0 ≥18 ≥320 100:2 1.15±0.03

HY-912 Red/Yellow/White/Green 25±2 13000±2000 30-45 2-4 ≥3.5 ≥15 ≥350 100:2 1.13±0.03

Detailed Application Scenarios

Electronic Housing Printing

HY-916 is widely used for logo and pattern printing on mobile phone cases, remote controls, computer mice, keyboards, chargers, power banks and Bluetooth earphone cases. Electronic housings typically have irregular shapes with curved surfaces and concave convex button areas where normal hardness pad heads cannot fully conform, causing incomplete prints and blurred edges. HY-916 pad heads with elongation ≥400% perfectly conform to these complex surfaces, ensuring complete and sharp logo printing with uniform ink transfer, meeting the high appearance quality standards of the electronics industry.

Cosmetic Packaging Printing

In the cosmetics industry, HY-916 is used for brand logo and decorative pattern printing on cosmetic bottles, perfume bottles, lipstick tubes, mascara tubes, powder compacts and eye cream jars. Cosmetic packaging features elegant curves and large curvatures with extremely high printing quality requirements. HY-916 super soft pad heads uniformly conform to these elegant curved surfaces, producing fine detailed logos with accurate overprinting and uniform color. RoHS and REACH certified, safe for cosmetic packaging contact. Ideal for circumferential printing on cylindrical lipstick and mascara tubes.

Application and Operation Instructions

Step 1: Preparation

Prepare HY-916 Part A and Part B, digital scale (0.1g precision), stirring rod, vacuum degassing chamber, pad head mold, release agent, nitrile gloves. Clean mold thoroughly, apply thin release agent layer, dry 10 minutes.

Step 2: Weighing

Stir Part A and Part B separately. Weigh accurately at 100:2 ratio (e.g. 100g Part A + 2g Part B). Use precision scale, ratio error within ±0.1g.

Step 3: Stirring

Stir thoroughly for 3-5 minutes, scraping bottom and side walls to ensure uniform mixing. Stir gently to avoid excessive bubbles. Mixed silicone should have uniform color without streaks.

Step 4: Vacuum Degassing

Degas at -0.09MPa for 5-8 minutes until no more bubbles rise. Critical step for pad head quality, insufficient degassing causes pores and printing defects.

Step 5: Mold Pouring

Pour slowly along mold side wall, let silicone flow naturally. Fill slightly above mold level to compensate for curing shrinkage.

Step 6: Curing and Demolding

Cure at room temperature 25°C for 2-4 hours. Confirm full curing by finger press test. Demold carefully from edge. Rest 24 hours before use for optimal performance.

Selection Guide

• HY-901 (23A): Economy grade, medium hardness, for flat/slightly curved surface general printing

• HY-902 (28A): High wear grade, excellent strength, for high frequency automated production lines

• HY-912 (25A): Multi color universal grade, good resilience, for multi color overprint fine pattern printing

• HY-916 (16A): Super soft grade, excellent conformability, for large curvature irregular curved surface printing

Recommended Application

Most recommended for electronic housing logo printing and cosmetic packaging brand pattern printing.

Quality and Compliance

ISO 9001 certified. Every batch tested for hardness, viscosity, tensile strength, tear strength, curing time with COA report provided. RoHS and REACH compliant, SGS tested. 25 years experienced manufacturer, products exported to 138 countries.

Packaging Specifications

1kg trial pack (1kg A + 20g B), 5kg, 20kg, 25kg, 200kg iron drum. Part A and B separately packed with clear labels. OEM private label and custom packaging available.

Competitive Advantages

16,500 sqm own production base, 500 tons monthly capacity, stable supply. Direct pricing 30%-50% lower than comparable imported products. Regular models in stock, ship within 1-3 days. Professional technical support, custom formula service, OEM available.

Ordering and Logistics

Payment: T/T, PayPal, Western Union. Free samples available (freight collect). Stock ships 1-3 days, custom 7-15 days. Export by sea, air, DHL/FedEx/UPS. Not dangerous goods. COA, manual, MSDS provided.

Technical Support and Custom Service

Experienced technical team with 10+ years average experience. Full lifecycle support from selection to process optimization. Custom formulas available, MOQ 50kg, delivery 7-15 days. Remote or on site technical support.

Precautions

Wear nitrile gloves. Avoid contact with tin, sulfur, amine substances which inhibit curing. Stir Part A and B separately before use. Weigh accurately, mix uniformly including bottom and walls. Cure temperature 15-35°C. Maintain ventilation.

Storage

Store cool dry at 5-30°C, avoid sunlight and high temperature. Shelf life 12 months unopened. Reseal immediately after use, especially Part B is moisture sensitive. Refrigeration extends shelf life, warm to room temperature before use.

FAQ

Q1: What is the difference between HY-916 super soft and normal hardness pad silicone?

A1: HY-916 has 16 Shore A hardness, 7 degrees softer than conventional 23A grade, with elongation ≥400% and much larger deformation capability. It perfectly conforms to large curvature and concave convex irregular surfaces where normal pad heads cannot achieve complete printing. For flat or slightly curved surfaces, normal hardness grades like HY-901 are sufficient and more cost effective.

Q2: Do super soft pad heads have shorter service life?

A2: While super soft pads may wear slightly faster than high hardness ones, HY-916 maintains excellent physical properties with tensile strength ≥2.5MPa and tear strength ≥10kN/m, achieving 50,000 to 80,000 prints under normal conditions. For curved surface printing applications where normal pads simply cannot print well, HY-916 delivers significantly higher yield and lower overall cost despite slightly shorter pad life.

Q3: Why are there bubbles or pores in my finished pad heads?

A3: Bubbles and pores are most commonly caused by insufficient vacuum degassing. Ensure vacuum reaches -0.09MPa and degas for at least 5 minutes until no more bubbles rise to the surface. Also pour silicone slowly along the mold side wall rather than from directly above to avoid introducing new bubbles. A vacuum degassing chamber is essential equipment for producing quality pad heads.