Silicone Rubber Polyurethane (PU) Coating Ink
Product Description
Enjoy durable, vibrant prints on challenging substrates like silicone and rubber. Our PU ink delivers unbeatable adhesion, stays flexible, and resists wear, chemicals, and the elements—all while curing fast and leaving a luxuriously soft finish.
Application
Mainly applied to silicone cellphone case, silicone keypad and other silicone rubber products.
Application Ratio
Silicone ink: 100g
Mixer(catalyst): 2~3g
Thinner: 300~500g
Processing
The ink base is first blended with its hardener in a 100:2–3 ratio within a suitable mixing vessel. Thinning is then carried out using 3–5 parts of solvent (either White Gas or Xylene) to one part of the base. A mixing cycle of 5 to 10 minutes is observed, followed by double filtration through a 300-mesh screen immediately before application. The usable window for this catalyzed mixture is limited to 12 hours, with all procedures taking place at a regulated 22°C.
All the above physical data only for reference.
Baking method
A.Oven:Baking at 180℃ for 20 minutes.
B.IR strip: Baking at constant temperature 200℃ for 7 minutes
Attention
1. This agent including volatile solvent, please keep ventilating and far away from heat and open flame.
2. Avoid skin contact for a long time and vapor inhalation
3. Washing with soap once skin contact.
Storage
Stored at room temperature for 6 months with any mixing.
Packing
1KG/Bottle.
Application range:
| Test item |
Test condition and method |
Result |
| Adhesion |
The case method, tape 3M610# for 3 times |
5B |
| RCA tape friction |
spraying thickness 25μm, loading 175g, cycle friction |
>5000 times |
| High temperature and humidity resistance |
80℃/98%RH, placed 48hrs |
no abnormality |
| Boiling water resistance |
100℃ water , placed 1 hr |
no abnormality |
| Cold and thermal impact resistance |
- 40℃*1hr 80℃*1hr , 27 cycles |
no abnormality |
