Rubber Keypad Repair Kit — CircuitWorks Rubber Keypad Repair Kit (CW2605)
This repair kit from CHEMTRONIC, CircuitWorks Rubber Keypad Repair Kit (CW2605), is designed to permanently restore conductivity to worn, intermittent, or non-conductive carbon contacts on rubber keypads. The kit consists of two components that are mixed to form a silver/carbon-based, flexible, and durable conductive coating.
Material and delivery
- Kit contents: Part A (3 g silver/carbon adhesive) and Part B (0.33 g curing agent).
- Part A composition: silver/carbon/rubber. Part B: hardener.
- Colors: Part A dark grey/silver, Part B amber clear.
Application and curing
Mix Part B into Part A and stir thoroughly for approximately two minutes before application. Clean the contacts with a contact cleaner before application. Apply the mixed conductive paste with the included applicator, using the minimum amount of material needed for function. At 25°C, the material is tack-free after one hour, the keypad can be put into operation after 24 hours, and full curing is achieved after 72 hours. Faster curing can be achieved by heating to approximately 90°C for 10 minutes (do not exceed 100°C).
For further technical details and safety information, please refer to the manufacturer's technical data sheet: See data sheet from manufacturer.
Typical applications
- Repair of phone rubber keypads.
- Repair of controllers and device control buttons with carbon contacts.
- Repair of carbon contact keyboards.
- Repair of communication equipment and various keypads.
Performance characteristics
- After curing, the material provides excellent electrical conductivity, good flexibility, and wear resistance.
- Tests show that repairs can withstand over 500,000 simulated keystrokes.
- The system is stated to be able to repair more than 50 rubber button contacts per kit (according to the manufacturer).
Specifications
- Product name: CircuitWorks Rubber Keypad Repair Kit (CW2605)
- Manufacturer: CHEMTRONIC
- Contents: Part A 3 g (silver/carbon adhesive), Part B 0.33 g (curing agent)
- Part A specific gravity: 2.5–2.7
- Part B specific gravity: 1.0
- Tack-free time: 1 hour at 25°C
- Return to service: 24 hours at 25°C
- Full cure: 72 hours at 25°C
- Rapid cure: approx. 90°C for 10 minutes (do not exceed 100°C)
- Shelf life: 18 months (supplier-stated)
- Tested to over 500,000 simulated keystrokes
- RoHS: Yes (stated in technical data sheet)
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