Hongye Silicone HY-916 is a super soft pad printing silicone developed by Shenzhen Hongyejie Technology Co., Ltd. for printing on irregular curved surface products. Made from high quality silicone rubber raw materials with optimized special soft formula, this product delivers outstanding softness, conformability and elongation. Pad heads made from HY-916 perfectly conform to products with large curvatures and obvious concave convex surfaces, ensuring complete and clear pattern transfer.
With hardness 16 Shore A, HY-916 is a super soft grade with excellent softness and large deformation under pressure, able to reach into concave areas of products, achieving printing that normal hardness pad heads cannot complete. The 100:2 mixing ratio ensures easy operation, and room temperature curing in 2-4 hours provides high production efficiency. With viscosity 10000mPa.s and fine silicone texture, pad heads made from it have smooth surfaces with uniform ink transfer.
This product is widely used for multi color pattern printing on toys, identification printing on medical devices, curved surface pattern printing on crafts, logo printing on irregular gifts and other applications, trusted by customers worldwide. Hongye Silicone has 25 years of experience in liquid silicone R&D and production. With a 16,500 square meter production base in Shenzhen, monthly capacity of 500 tons, products exported to 138 countries, ISO 9001 certified, every batch undergoes strict inspection before shipment with COA reports provided, ensuring stable and reliable quality.
Core Features
• Super soft hardness 16 Shore A, excellent softness and conformability
• Elongation ≥400%, large deformation, perfectly conforming to complex curved surfaces
• Tensile strength ≥2.5MPa, tear strength ≥10kN/m, flexible and durable
• Specially designed for printing on products with large curvatures and obvious concave convex surfaces
• Able to reach into concave areas, achieving printing that normal pad heads cannot complete
• 100:2 mixing ratio, easy operation, room temperature cure in 2-4 hours
• Viscosity 10000mPa.s, fine texture, smooth pad head surface
• Uniform ink transfer, clean pickup and thorough release, clear patterns
• Available in red, yellow, white, green, custom colors supported
• Suitable for curved surface printing on toys, medical devices, crafts
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
Toy Industry Application
HY-916 super soft pad printing silicone is widely used in the toy industry, mainly for pattern and logo printing on plastic toys, educational toys, plush toy accessories, anime figures, stroller accessories and other toy products. Toy products usually have irregular shapes with large curvatures and obvious concave convex surfaces, and normal hardness pad heads cannot fully conform, easily causing incomplete pattern printing and blurred edges.
Pad heads made from HY-916 are super soft with elongation ≥400%, large deformation under pressure, perfectly conforming to complex curved surfaces and concave convex areas of toy products, ensuring complete and clear pattern transfer. Meanwhile, this model provides uniform ink transfer with clean pickup and thorough release, producing full color cartoon patterns with clear edges, meeting the high appearance quality requirements of the toy industry. Toy products usually have large batches and many varieties, and HY-916 pad heads are flexible and durable, resistant to cracking, withstanding high volume printing with long service life, making it a reliable choice for curved surface printing in the toy industry.
Medical Device Industry Application
In the medical device industry, HY-916 is used for identification and scale printing on syringes, infusion sets, medical catheters, blood pressure monitor components, medical plastic housings, rehabilitation equipment and other medical products. Medical device products usually have special shapes with large curvatures, and have very high requirements for printing quality and identification clarity, as identification is directly related to usage safety.
The super soft characteristics of HY-916 enable it to perfectly conform to the special shapes and curved surfaces of medical device products, ensuring complete and clear identification and scale printing without missing or blurring. This product is RoHS and REACH certified, safe and non toxic, and can be safely used for printing on medical device products. Meanwhile, HY-916 pad heads provide uniform ink transfer, and the printed identifications are durable and wear resistant, not easy to peel off, meeting the strict requirements of the medical device industry for identification durability. For circumferential printing on cylindrical products such as medical catheters and syringes, HY-916 super soft pad heads provide stable and uniform printing results, making it the ideal choice for the medical device industry.
Application and Operation Instructions
Step 1: Preparation
Prepare HY-916 Part A (silicone) and Part B (curing agent), digital scale, stirring rod, vacuum degassing machine, pad head mold, mold release agent, gloves and other tools. Ensure the mold is clean and dry, apply a thin uniform layer of mold release agent inside the mold and let it dry.
Step 2: Weighing and Mixing
Accurately weigh Part A and Part B by weight ratio 100:2. For example, take 100g Part A and add 2g Part B. Use a digital scale for precise weighing with error within ±0.1g. Inaccurate ratio will affect curing results and pad head performance.
Step 3: Stirring
Stir Part A and Part B thoroughly for 3-5 minutes. Scrape the bottom and side walls of the container to ensure uniform mixing without streaks. Stir gently to avoid introducing too many bubbles. The mixed silicone should have uniform color without obvious color difference.
Step 4: Vacuum Degassing
Place the mixed silicone in a vacuum degassing machine and degas for 5-8 minutes at -0.09MPa negative pressure until no more bubbles rise to the surface. Degassing is a critical step to ensure pad head quality. Insufficient degassing causes internal pores in pad heads, affecting printing results and service life.
Step 5: Mold Pouring
Slowly pour the degassed silicone into the prepared pad head mold. Pour from one side of the mold and let the silicone flow naturally to avoid creating new bubbles. Fill slightly above the mold level as silicone will shrink slightly during curing.
Step 6: Curing and Demolding
Cure at room temperature (25°C) for 2-4 hours. Once fully cured, demold carefully. Avoid excessive pulling that may cause deformation or tearing. It is recommended to let the demolded pad head rest for 24 hours before use to achieve optimal performance.
Selection Guide
HY-901 (Economy Grade, 23A)
Medium hardness with high cost performance, suitable for small and medium batch production with moderate printing frequency. Ideal choice for entry level customers.
HY-902 (High Wear Grade, 28A)
High wear resistance and long service life with excellent tensile and tear strength. Suitable for high frequency mass production automated lines with long pad head life and low comprehensive cost.
HY-912 (Multi Color Universal Grade, 25A)
Good resilience and ink transfer performance with high overprint accuracy. Suitable for multi color overprinting and fine pattern printing. Ideal choice for multi color printing processes.
HY-916 (Super Soft Grade, 16A)
Low hardness with excellent softness and conformability, suitable for products with large curvatures and obvious concave convex surfaces. Perfectly conforms to complex surfaces.
Recommended Application
Most recommended for complex curved surface pattern printing on toy products and identification scale printing on medical device products.
Quality and Compliance
Hongye Silicone is ISO 9001 quality management system certified. Every batch undergoes multiple inspections before shipment including hardness, viscosity, tensile strength, tear strength and curing time, with COA test reports provided. Products comply with RoHS and REACH environmental standards, passed SGS testing, safe for use in various consumer products and medical device packaging printing. The brand has 25 years of industry experience with products exported to 138 countries worldwide.
Packaging Specifications
Various packaging specifications available to meet different needs: 1kg trial pack (1kg Part A + 20g Part B), 5kg pack, 20kg pack, 25kg pack, 200kg iron drum for bulk orders. Part A and Part B are separately packed with clear labels indicating model, batch number, production date and shelf life. OEM private label service available, packaging can be customized according to customer requirements.
Competitive Advantages
Hongye Silicone owns its production base with a 16,500 square meter factory in Shenzhen, monthly capacity 500 tons, stable supply. Product prices are 30%-50% lower than comparable imported products with outstanding cost performance. Regular models are in stock with shipment within 1-3 days after order. Professional technical team provides full process technical support with custom formula service available. OEM private label service supported with small batch customization available.
Ordering and Logistics
Multiple payment methods supported: T/T bank transfer, Alipay, WeChat, PayPal (for export orders). New customers can apply for free samples (freight collect) and place bulk orders after satisfactory testing. Regular models in stock ship within 1-3 days, custom products deliver in 7-15 days. Domestic shipments by express or logistics, export orders by sea, air or international express. Products are not dangerous goods, safe and convenient for transportation. COA test reports, product manuals and MSDS documents provided with each shipment.
Technical Support and Custom Service
Hongye Silicone has an experienced technical team with engineers averaging over 10 years of industry experience, providing full lifecycle technical support from model selection and formula debugging to process optimization. Custom silicone formulas can be developed based on specific application requirements, adjusting hardness, viscosity, color, curing time and other parameters. Custom minimum order quantity 50kg with delivery in 7-15 days. Technical team provides remote guidance or on site service to ensure smooth customer usage.
Precautions
It is recommended to wear nitrile gloves during operation to avoid direct skin contact with uncured silicone and curing agent. Avoid contact with substances containing tin, sulfur, amines and similar materials as these may inhibit silicone curing. Part A and Part B should be stirred separately before use. Weighing must be accurate as excessive ratio deviation affects curing results. Mixing must be uniform otherwise local incomplete curing may occur. Recommended curing temperature between 15-35°C, lower temperatures extend curing time. Maintain ventilation in the operating area and avoid inhaling volatile gases.
Storage
Store products in a cool and dry place at storage temperature 5-30°C, avoid direct sunlight and high temperature environments. Shelf life 12 months unopened, use as soon as possible after opening. Reseal immediately after each use to prevent curing agent from contacting moisture in air. Part B (curing agent) is moisture sensitive and must be stored sealed. Refrigerated storage can extend shelf life, but allow to return to room temperature before use.
FAQ
Q1: What products is HY-916 super soft pad head suitable for?
A1: HY-916 super soft grade is specially designed for printing on irregular curved surface products, with hardness 16 Shore A and elongation ≥400%, excellent softness, suitable for printing on products with large curvatures and obvious concave convex surfaces, such as toys, medical devices, irregular crafts, spherical products, cylindrical products. For flat or slightly curved surface products, HY-901 or HY-912 is recommended, as super soft pad heads may cause pattern blurring due to excessive deformation in flat printing.
Q2: What causes pattern deformation when printing with super soft pad heads?
A2: Common causes of pattern deformation in super soft pad head printing include: excessive printing pressure causing over deformation of pad head; pad head hardness too soft for the product; printing speed too fast causing delayed pad head rebound; insecure substrate fixation. It is recommended to appropriately reduce printing pressure, confirm whether pad head hardness matches the product (medium hardness for flat products, super soft for curved products), adjust printing speed, and ensure substrate is firmly fixed.
Q3: What causes the silicone not to cure after mixing?
A3: Common causes of incomplete curing include: insufficient Part B curing agent or uneven mixing; contact with curing inhibiting substances containing tin, sulfur, amines and similar materials; low ambient temperature below 15°C; expired curing agent. It is recommended to check the ratio and mixing, ensure appropriate operating environment temperature, and use products within shelf life.
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