SilSo Print 21001 – Silicone Elastomer for Pad Printing & Stamp Manufacturing
SilSo Print 21001 – Silicone Elastomer for Pad Printing & Stamp Manufacturing
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Premium Silicone Elastomer for Professional Pad Printing Applications
SilSo Print 21001 is a pourable, 2-component, addition-curing silicone rubber from CHT Germany that is highly suitable for the production of silicone printing pads. The material cures at room temperature with a Shore A hardness of 30, minimal shrinkage (<0.1%), and excellent ink resistance — essential for reproducible prints in industrial environments.
Key Advantages
- Low viscosity: Excellent flow and detail reproduction due to mixed viscosity of ~10,000 cP.
- Minimal shrinkage: Linear shrinkage <0.1% for dimensionally accurate pads.
- Ink resistant: Resistant to common printing inks for long pad life.
- Wide temperature resistance: Operable from -50°C to +200°C.
- Dilutable: Hardness and viscosity adjustable with silicone oil addition (50–300 mPas).
- Fast curing: Demolding after 12 hours at 23°C; can be accelerated with heat.
Typical Applications
- Production of silicone printing pads for pad printing on irregular surfaces
- Printing of promotional items, electronics, and medical devices
- Industrial marking of plastic, metal, and ceramics
- Prototyping of printing pads for small series and R&D
- Decorative applications in the automotive and consumer goods industries
- Replacement of existing pads in automated printing lines
Technical Characteristics
SilSo Print 21001 is mixed in a weight ratio of 1:1 (component A : component B). The pot life is 30 minutes at 23°C; full curing after 12 hours. Density of cured rubber: 1.1 g/cm³. Tensile strength: 7 N/mm², elongation at break: 600%, tear resistance: 30 N/mm. Shelf life up to 12 months when stored below 30°C in sealed original packaging.
CHT Germany GmbH is a specialized manufacturer of high-quality silicones and functional chemicals, based in Tübingen, Germany. CHT provides technical support and custom formulations for demanding industrial applications.
Professional Support
Do you have questions about the correct hardness, dilution ratio, or processing conditions for your specific application? Our technical team will be happy to advise you on the optimal use of SilSo Print 21001 in your production process.
Product Properties
- Hardness30Shore AHardness of the silicone material
- Shrinkage0.1%Linear shrinkage after curing
- ColorReddish-brownColor of the finished product
- TransparencyOpaqueDegree of transparency
- Viscosity10000mPa·sViscosity of the uncured silicone
- Density1.1g/cm³Density of the cured material
- Mix ratio1:1Mixing ratio A : B
- Tensile strength7.0MPaMaximum tensile force before breaking
- Tear strength30.0kN/mResistance against tearing
- Elongation at break600%Maximum stretch before breaking
- Pot life30minutesWorking time after mixing
- Cure time720minutesTime until full cure
Component Properties
- Color AWhiteColor of component A
- Color BReddish-brownColor of component B
- Viscosity A12000mPa·sViscosity of component A
- Viscosity B8000mPa·sViscosity of component B
- Density A1.1g/cm³Density of component A
- Density B1.1g/cm³Density of component B
Thermal Properties
- Max. temperature200°CMaximum service temperature
- Min. temperature-50°CMinimum service temperature
Electrical Properties
- Electrically insulatingYesPrevents electric current flow
Certification & Safety
- Chemical resistanceGoodResistance to chemicals
- Moisture resistantYesResistant to moisture and water absorption
Application
- Use casePad printing pads, pad printingIntended use
- Silicone type["Addition curing","RTV-2"]Type of silicone or polymer
- Cure speedNormalHow quickly the material can be demoulded
Safety Information
This product is classified as harmful to aquatic life with long lasting effects (H412). No signal word and no hazard pictogram apply to this classification. Work in a well-ventilated room and wear nitrile gloves and eye protection. Avoid release to the environment: do not let residues or rinse water enter drains or soil, and dispose of contents and packaging via a licensed waste disposal company. Always consult the supplied safety data sheet (SDS) for full information on hazards, handling, storage and first aid.| Safety Pictograms | Safety Data Sheets (SDS) |
|---|---|
Required protection (ISO 7010)
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| Signal Word | H‑code | Hazard Statement | P‑codes | P‑statements |
|---|---|---|---|---|
| Warning | H412 | Harmful to aquatic life with long lasting effects | P273 P501 |
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Technical data sheets
Frequently asked questions
What is the delivery time for my order?
Orders placed and paid on working days are in most cases shipped the same day. Weekend orders are processed on the next working day.
Indicative delivery times: Netherlands usually within 1 working day, Belgium and Germany typically 1–2 working days, other countries depending on destination and carrier. These are guidelines, not guarantees: peak periods, public holidays or carrier delays can have an effect.
What is the return policy?
You have 30 days to return after receipt. Email info@siliconesandmore.com within 30 days of delivery with your name and order number. The full conditions are in our return policy.
How can I track my order?
As soon as your order has shipped, you'll receive a track & trace code by email. It can take up to 24 hours before the code is active.
I have a problem with my order – how do I reach you?
Contact us via our contact page or email info@siliconesandmore.com. We're happy to help you quickly.
Can I order as a business?
Yes. Apply for a business account; we review your application within 3 working days. After that you order while logged in and pay on invoice, with payment terms of 14 days after delivery.
EU businesses outside the Netherlands with a valid VAT number order with VAT reverse-charged (0%, intra-community supply). The VAT number is stored in your business account; it cannot be added to an order after it has been placed.