AM-Si Silicone Printing Ink
For Screen Printing and Pad Printing
AM-Si is a two‑part silicone printing ink engineered for permanent decoration on silicone parts (wristbands, swim caps, keypads, medical/industrial silicone components, consumer goods). Available in room‑temperature cure and bake‑cure versions, in both glossy or matte finishes.
AM-Si silicone printing ink can be used for pad printing and screen printing. This ink is derived of silicone and will stretch and perform identical to your silicone parts with stretch, abrasion and heat resistant characteristics mirroring the silicone part it is printed on. AM-Si silicone printing ink is available in 13 standard colors, 4 metallic colors and is also available in Pantone matches.
AM-Si RT Series Room Temperature
Silicone Printing Ink
- Room temperature cured in 24 hours
- Dry to touch in 2 hours
- Printability – Excellent
- Offered in glossy or matte finish
- Abrasion resistant, waterproof and heat resistant
- Standard and Pantone colors available
- Can be screen printed or pad printed
AM-Si B Series Heat Cured
Silicone Printing Ink
- Fast thermal cure: 180° C for 3-5 min or 120°C for 8-10 min (IR)
- Requires heat to cure
- Printability – Excellent
- Offered in glossy or matte finish
- Abrasion resistant, waterproof and heat resistant
- Can be screen printed or pad printed
Version | Catalyst | Typical Mixture | Thinner | Notes |
|---|---|---|---|---|
AM-Si RT
(Room-Temp Cure) | AM-SiRTH | 12% hardener by weight | Up to 30% for pad; ~10% for screen | Surface-dry ~2h: full cure 24h |
AM-Si Bake (Thermal Cure) | AM-SiBH | 4% hardener by weight | Up to 30% for pad; ~10% for screen | Bake 180°C (356°F) 3-5 mins
or 120C (250°F) 8-10 mins |
What can be marked with AM-Si Silicone Printing Ink?
Silicone straps & bands, phone cases, swim caps, keypads, seals, gaskets, bakeware handles, medical and industrial silicone components, and more.
Frequently Asked Questions
A list of our most frequently asked questions about printing on silicone products with AM-Si Products.
How do I thin the AM-Si silicone printing ink?
Use AM‑SiT thinner; pad printing up to ~30%, screen ~10% typical.
What’s the pot life after catalyzing?
Approximately 8 hours.
Are there any chemicals that can inhibit the cure?
Avoide Nitrogen, Phosphurus, and Sulfur compounds as these will inhibit or prevent curing.
Are your silicone printing inks safe?
Yes. We have hired a third party group to evaluate the safety of our inks and they pass relevant safety standards. More information can be found below.
Does AM‑Si silicone printing ink work with both pad and screen printing?
Yes—both versions are formulated for pad and screen. Pad printing will require thinning the ink with AM-SiT Thinner up to 30%.
What is the storage life of AM-Si silicone printing inks?
Approximately 6 months if stored at 59-68° F (15-20°C).
Can this be printed wet-on-wet (one color on top of and right after another)?
Silicone inks need to be fully cured in order to make sure the next print sticks well. However, once the curing process is complete another print can easily be done.
Colors
AM-Si ink is available in 13 base colors and 4 metallic colors. The 13 base colors can be mixed to form Pantone colors. There are also four metallic colors as standard.
Custom Pantone colors and custom mixed metallic colors can be formulated depending on requirements.
Compliance
Ink Safety
AM-Si silicone pad printing ink and screen printing ink is safe, passing all North American safety standards! All standard colors of our ink have passed these stringent safety standards. This includes 15 different standards by individual State or Country mandates. The Automark Si pad printing silicone ink is the best in the industry with safety as a top priority. Learn more by downloading the test report to the left.
