HY-901 is an economy grade universal pad printing silicone developed and manufactured by Shenzhen Hongyejie Technology Co., Ltd., a professional liquid silicone rubber manufacturer with 25 years of industry experience and a strong track record in international export markets. Our factory covers 16,500 square meters in Shenzhen, China, with monthly production capacity of 500 tons, ensuring stable supply for bulk orders from customers around the world.
As an ISO 9001 certified manufacturer, we implement strict quality control throughout the entire production process, from raw material procurement to finished product inspection. Every batch of HY-901 undergoes comprehensive testing including hardness, viscosity, tensile strength, tear strength, elongation and curing time, with a Certificate of Analysis (COA) provided for each shipment. Our products are RoHS and REACH compliant, passed SGS testing, and meet the safety and environmental requirements of European, American and other international markets.
We offer comprehensive OEM and private label services for our global customers. We can customize product formulas including hardness, viscosity, color, curing time and mixing ratio according to your specific application requirements. We also provide custom packaging with your own brand labels, logos and product manuals. Our minimum order quantity for custom formulas is 50kg, with delivery time of 7-15 days.
HY-901 has a hardness of 30 Shore A, classified as a general purpose medium hardness grade, with tensile strength 3.8MPa, tear strength 22kN/m and elongation 380%. This product delivers stable and reliable physical properties, producing flexible and elastic pad heads that meet the general printing requirements of most flat or slightly curved surface products. The ink transfer performance is stable with uniform ink pickup and clean release, producing clear and complete patterns that meet the quality requirements of small and medium batch production.
The 100:2 to 100:3 mixing ratio provides simple and consistent operation that is easy to learn, with low technical requirements for operators, allowing beginners to quickly master the pad head making process. With 30-40 minutes working time and 3-4 hours room temperature curing, production efficiency is high. The 32000mPa.s viscosity ensures fine texture and smooth pad head surfaces, with linear shrinkage ≤0.3% providing dimensional stability, ensuring consistent pad head dimensions and printing results in small and medium batch production.
HY-901 is widely applied in toys, electronic products, stationery, crafts, gifts, daily necessities and other industries for logo and simple pattern printing. For entry level customers new to pad printing, small and medium batch processing factories, and budget conscious customers needing cost control, HY-901 provides stable and reliable performance at an affordable price, making it the cost effective choice. With 25 years of liquid silicone manufacturing experience, every batch is rigorously tested before shipment with COA reports provided, ensuring reliable quality for our international customers. Although this is an economy grade product, we also provide free technical support and model selection guidance services to help customers solve problems encountered during use.
Core Features
• 25 years professional silicone manufacturer with strong export experience
• ISO 9001 certified, RoHS and REACH compliant, SGS tested
• OEM and private label services available, custom formulas and packaging
• Economy grade universal type with affordable price and outstanding cost performance
• Hardness 30 Shore A, general purpose for most product printing
• Tensile strength 3.8MPa, tear strength 22kN/m, stable and reliable performance
• Elongation 380%, good conformability for slightly curved surfaces
• Viscosity 32000mPa.s, fine texture, smooth pad head surface
• 100:2 to 100:3 mixing ratio, 30-40 min working time, 3-4 hour room temperature cure
• Stable ink transfer, uniform pickup and clean release, clear patterns
• Linear shrinkage ≤0.3%, dimensional stability, high pad head precision
• Standard color white, custom colors supported
Technical Parameters Table
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-901 White 30±2 32000±2000 30-40 3-4 3.8 22±2 380 100:2~100:3 1.12±0.03
HY-902 White 30±2 35000±2000 30-40 3-4 4.0 24±2 430 100:2~100:3 1.15±0.03
HY-912 White 30±2 32000±2000 30-40 3-4 4.0 25±2 340 100:2~100:3 1.13±0.03
HY-916 White 14±2 36000±2000 30-40 3-4 3.5 25±2 570 100:2~100:3 1.10±0.03
Detailed Application Scenarios
Toy Industry Logo and Pattern Printing Application
HY-901 economy grade pad printing silicone is widely used in the toy industry for logo, brand identification, pattern, text, eyes and expression printing on plastic toys, electronic toys, educational toys, plush toy accessories, toy cars, toy figures, building blocks, puzzles, board game accessories and various other toy products. The toy industry features diverse product types, rapid updates and varying batch sizes, requiring high cost performance and versatility from pad printing silicone, and HY-901 economy grade perfectly meets these requirements.
Toy products usually come in various shapes including flat, slightly curved and small curved surfaces, and HY-901 with 30 Shore A hardness and 380% elongation can adapt to most flat and slightly curved surface printing needs of toy products. The ink transfer performance is stable with uniform pickup and clean release, producing clear and complete logos and patterns with full colors that meet the appearance quality requirements of toy products. For fine printing commonly seen in the toy industry such as eyes, expressions and small patterns, HY-901 can also provide stable printing results.
The toy industry features rapid product updates with frequent new product development and new pad head fabrication, and HY-901 is simple and easy to operate with low technical requirements for operators, allowing beginners to quickly master the pad head making process and rapidly respond to new product development needs. Room temperature curing in 3-4 hours enables demolding with short pad head fabrication cycles allowing quick production start. The affordable price with outstanding cost performance makes comprehensive usage cost low for the small batch, multi variety production model common in the toy industry, making it the cost effective choice. Shenzhen Hongye Silicone maintains stock availability with same day shipment after order placement, rapidly responding to urgent order demands in the toy industry.
Electronic Product Housing Logo and Marking Printing Application
In the electronic product industry, HY-901 is used for logo, brand identification, model marking, parameter text, certification mark printing on phone cases, tablet cases, laptop housings, charger housings, power bank housings, Bluetooth earphone charging cases, smart watch housings, router housings, set top box housings, keyboards and mice, game controllers, USB flash drive housings, portable hard drive housings and various other electronic product housings. The electronic product industry has certain requirements for printing quality, as logos and markings must be clear, accurate and wear resistant, and HY-901 can meet the general pad printing needs of small and medium batch electronic products.
Electronic product housings are usually flat or slightly curved surfaces made of materials including ABS, PC, PP, PVC, metal and more, and pad heads made from HY-901 can adapt to surface printing on these materials with stable ink transfer, producing clear and sharp logos and markings with neat edges without blurring, faintness or broken line issues. With linear shrinkage ≤0.3%, pad heads provide dimensional stability ensuring consistent printing positions across the same batch of products without left or right offset variations.
The electronic product industry often has small and medium batch trial production orders, custom orders, rework orders and more, and HY-901 with affordable price and outstanding cost performance provides low pad head fabrication cost with controllable comprehensive usage cost for these small and medium batch orders. Simple operation with short pad head fabrication cycles allows rapid response to urgent trial production and custom order demands. As a local Shenzhen manufacturer with stock availability and fast shipment, we can meet the delivery time requirements of the electronic product industry. For budget conscious small and medium electronic processing factories and startup enterprises, HY-901 is the cost effective choice, providing stable and reliable printing results at an affordable price.
Application and Operation Instructions
Step 1: Preparation and Mold Treatment
Prepare HY-901 Part A and Part B, digital scale (0.1g precision), stirring rod, vacuum degassing chamber, pad head mold, release agent, nitrile gloves, lint free cloth and other tools and materials. First, treat the mold: wipe the inside of the mold thoroughly with lint free cloth dipped in alcohol to ensure no dust, oil or residual silicone inside, then apply a thin uniform layer of release agent inside the mold and let it dry for 10-15 minutes to allow the release agent to fully dry and form a barrier film, ensuring easy demolding without sticking.
Step 2: Accurate Weighing and Mixing
Stir Part A (silicone) and Part B (curing agent) separately before use, as fillers may settle during storage and stirring evenly ensures stable product performance. Then accurately weigh at a weight ratio of 100:2 to 100:3, for example, weigh 100g Part A and add 2 to 3g Part B. Weighing must be accurate, use a digital scale with precision of at least 0.1g, control ratio error within ±0.1g, as inaccurate ratio directly affects curing results and pad head performance.
Step 3: Thorough Stirring
Stir Part A and Part B thoroughly for 3-5 minutes with a stirring rod. Stir along the container wall clockwise or counterclockwise, while continuously scraping the bottom and side walls of the container to ensure silicone at the bottom and walls is also uniformly mixed, avoiding local incomplete curing caused by uneven mixing. Stir gently to avoid introducing excessive air bubbles. After stirring, the mixed silicone should have uniform color without obvious streaks or color difference.
Step 4: Vacuum Degassing
Place the uniformly mixed silicone in a vacuum degassing chamber for vacuum degassing, which is a critical step for producing high quality pad heads and must not be omitted. Set vacuum degree to -0.09MPa, degassing time 5-8 minutes. During degassing, you will see bubbles continuously rising from the silicone surface, and the silicone volume will first expand then contract, which is normal. Degassing is complete when no more bubbles rise to the surface and the silicone volume returns to stable. The purpose of degassing is to remove air bubbles introduced during mixing, as insufficient or no degassing causes internal pores in pad heads, resulting in missing prints, pinholes and incomplete patterns during printing.
Step 5: Mold Pouring
Remove the degassed silicone from the vacuum chamber, then slowly pour into the prepared pad head mold. When pouring, slowly pour along one side wall of the mold, allowing the silicone to flow naturally down the wall and level out inside the mold, do not pour directly from the middle of the mold to avoid impact creating new bubbles. Pour slightly above the mold level as silicone will shrink slightly during curing, ensuring full sized and well shaped pad heads after curing without material shortage.
Step 6: Curing, Demolding and Post Treatment
After pouring, place the mold on a flat surface and let it cure at room temperature (around 25°C) for 3-4 hours. Curing time is affected by ambient temperature, higher temperature cures faster, lower temperature cures slower. You can test for complete curing by gently pressing the pad head surface with your finger, if there is no obvious indentation and it is not sticky, curing is complete. After curing, demold carefully: first gently pry open the mold edge to allow air to enter, then slowly remove the pad head from the mold, be careful not to pull forcefully to avoid deformation or tearing. It is recommended to let the demolded pad head rest at room temperature for 24 hours before use to allow the silicone crosslinking reaction to fully complete and reach optimal performance, resulting in more stable printing results and longer service life.
Selection Guide
HY-901 (Economy Grade, 30A)
Medium hardness with affordable price and outstanding cost performance, suitable for flat or slightly curved surface general printing, small and medium batch production. Ideal choice for entry level and budget conscious customers.
HY-902 (High Wear Grade, 30A)
Medium hardness with excellent wear resistance, high tensile and tear strength, long pad head service life up to 100,000 to 150,000 prints. Suitable for high volume, high frequency automated production lines with lower comprehensive cost despite slightly higher unit price.
HY-912 (Multi Color Universal Grade, 30A)
Medium hardness with excellent resilience, good ink transfer performance and high overprint accuracy. Suitable for multi color overprinting and fine pattern printing applications, ideal choice for cosmetic packaging, crafts and gifts industries.
HY-916 (Super Soft Grade, 14A)
Lowest hardness with best softness and conformability, elongation ≥570%, perfectly conforms to large curvature and obvious concave convex complex curved surfaces. Suitable for irregular curved surface printing, the dedicated model for solving curved surface printing challenges.
Recommended Application
Most recommended for toy industry and electronic product housing small and medium batch general logo and pattern printing, with affordable price, outstanding cost performance and simple easy operation.
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, elongation 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 product 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 + 20 to 30g Part B, suitable for new customer testing and small batch use), 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, product name, batch number, production date, shelf life and mixing ratio. OEM private label service available, custom packaging labels and product manuals with your own brand.
Competitive Advantages
Hongye Silicone owns its production base with a 16,500 square meter factory in Shenzhen, monthly capacity 500 tons, stable supply for bulk orders. Factory direct pricing eliminates middlemen, prices 30% to 50% lower than comparable imported products with outstanding cost performance. Economy grade HY-901 provides stable and reliable performance at an affordable price. Regular models in stock with shipment within 1-3 days. Professional technical team provides full process technical support with custom formula service. OEM private label service supported with small batch customization available.
Ordering and Logistics
Multiple payment methods supported: T/T bank transfer, PayPal, Western Union, MoneyGram. 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. Export orders by sea, air or international express (DHL, FedEx, UPS). Products are not dangerous goods, safe and convenient for international transportation. COA test reports, product manuals and MSDS documents provided with each shipment.
Technical Support and Custom Service
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, operation 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
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, resulting in uncured or sticky pad heads. Stir Part A and Part B separately before use. Weighing must be accurate, mix uniformly including bottom and walls. Recommended curing temperature between 15-35°C, lower temperatures extend curing time, higher temperatures shorten operation 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, especially Part B curing agent is moisture sensitive and contact with moisture in air causes failure affecting curing results. Refrigerated storage can extend shelf life, but allow to return to room temperature before use to avoid condensation water affecting product performance.
FAQ
Q1: What is the difference between HY-901 economy grade and other models? How should I choose?
A1: The core feature of HY-901 is affordable price, outstanding cost performance and simple easy operation, specifically designed for small and medium batch general pad printing and budget conscious customers. Differences from other models: HY-901 economy grade has affordable price, suitable for small and medium batch general printing, first choice for entry level customers; HY-902 high wear grade has long pad head life up to 100,000 to 150,000 prints, suitable for high volume automated production lines; HY-912 multi color universal grade has excellent resilience and high overprint accuracy, suitable for multi color overprinting and fine patterns; HY-916 super soft grade has excellent conformability, suitable for large curvature complex curved surfaces. In simple terms: if you are a beginner new to the industry, small and medium batch production, or budget conscious, choose HY-901 economy grade for the highest cost performance; if high volume single color automated production, choose HY-902; if multi color overprinting or fine complex patterns are needed, choose HY-912; if large curvature complex curved surface, choose HY-916. If still unsure, contact our technical team for free consultation and we will provide professional selection recommendations based on your specific products and printing requirements.
Q2: What is the approximate service life of pad heads made from HY-901 economy grade? Is it sufficient?
A2: Pad heads made from HY-901 economy grade, under normal usage conditions, have an approximate service life of 50,000 to 80,000 prints, and the specific life is affected by multiple factors including printed product material, ink type, printing pressure, operation standardization and pad head maintenance. For small and medium batch production, a life of 50,000 to 80,000 prints is completely sufficient, and one pad head can support production for a long time. If you have a high volume, high frequency automated production line with large daily printing volume, we recommend choosing HY-902 high wear grade with a life of 100,000 to 150,000 prints, and although the unit price is slightly higher, the comprehensive usage cost is lower without frequent pad head replacement and with higher production efficiency. It should be noted that pad head life is greatly related to usage and maintenance, and correct usage and maintenance can significantly extend pad head life: do not apply excessive printing pressure to avoid over compression of pad heads; regularly clean pad head surfaces with lint free cloth to remove residual ink and dust; when not in use, store pad heads in a cool and dry place avoiding direct sunlight and high temperature environments; avoid pad heads contacting sharp objects causing scratches. We can send free samples for your testing before bulk ordering.
Q3: Why does the silicone not cure after mixing, or remain sticky on the surface after curing?
A3: Incomplete curing or sticky surfaces usually have several causes: inaccurate Part B ratio, always weigh accurately at 100:2 to 100:3 ratio. Uneven mixing especially at container bottom and walls, always scrape and stir thoroughly for 3-5 minutes. Contact with curing inhibiting substances such as tin, sulfur or amine containing materials, ensure clean tools and containers. Expired or improperly stored Part B curing agent, store sealed and use within shelf life. Check these causes one by one, or contact technical support for assistance.
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