CET-2002P
Polyurethane Adhesive for Piezo Sensors
YD-2002P is a solvent-free, environmentally friendly cold-curing adhesive used for encapsulating or surface bonding of piezo traffic sensors.
Specifications:
Package Size: 4 kg/set
Usage Instructions:
Mix components A and B thoroughly using an electric drill for 1-2 minutes.
Experimental Data:
YD-2002P is used for encapsulation and may occasionally exhibit sedimentation, especially if stored for a long period or at low temperatures. However, sedimentation can be easily dispersed using an electric drill with a wide blade.
- Color: Black
- Resin Density: 1.95
- Curing Agent Density: 1.2
- Mixture Density: 1.86
- Working Time: 5-10 minutes
- Application Temperature Range: 0°C to 60°C
- Mixing Ratio (by weight): A:B = 6:1
Testing Standards:
- National Standard: GB/T 2567-2021
- National Standard: GB 50728-2011
Performance Tests:
- Compression Test Result: 26 MPa
- Tensile Test Result: 20.8 MPa
- Fracture Elongation Test Result: 7.8%
- Adhesion Strength Test (C45 Steel-Concrete Direct Pull Bond Strength): 3.3 MPa (Concrete cohesive failure, adhesive remained intact)
Hardness Test (Shore D Hardness Meter):
- After 3 days at 20°C-25°C: 61D
- After 7 days at 20°C-25°C: 75D
Important Notes:
- Do not repack into smaller samples on-site; the adhesive should be used all at once.
- Laboratory samples can be prepared following precise ratio instructions for testing.
Installation Guide:
1. Sensor Installation Groove Dimensions:
- Recommended groove width: Sensor width +10mm
- Recommended groove depth: Sensor height +15mm
2. Surface Preparation:
- Use compressed air to remove dust and debris from the concrete surface.
- Ensure the concrete surface is dry before application.
3. Adhesive Preparation:
- Mix components A and B with an electric tool for 1-2 minutes. (Mixing time should not exceed 3 minutes.)
- Immediately pour the mixed adhesive into the prepared groove. (Do not leave mixed material in the container for more than 5 minutes.)
- Flow Time: At room temperature, the material remains workable for 8-10 minutes.
