Amtec-Labor-Waschanlagen
Whats/App: +86 156 1874 6768
Web: standard-groups.com
Standards
The simulator is designed to comply with multiple international and industry standards:
PV 3.3.3 – Scratch resistance test specification for automotive interior surfaces
ISO 20566:2020 – Paints and varnishes – Determination of scratch resistance of coating systems by laboratory car wash
MBN 10494-5 – Scratch resistance testing of automotive interior materials, Part 5
Parameters
| Item | Details |
|---|---|
| Washing Brush Diameter | 1000 ± 40 mm |
| Brush Width | 300 mm |
| Material | Ethylene |
| Brush Profile | X-type joint |
| Bristle Thickness | 0.8 ± 0.2 mm |
| Bristle Length | 440 ± 20 mm |
| Penetration Depth | 100 ± 20 mm |
| Electric Brush Rotation Speed | 127 ± 5 RPM |
| Rotation Direction | Opposite to the movement direction of the test panel holder |
| Stainless Steel Nozzle Angle | 65° |
| Flow Rate | 2.2 ± 0.2 L/min at 300 ± 50 kPa |
| Feed Speed | 5 ± 0.2 m/min |
| Movement Mode | When the brush rotates clockwise, the nozzle sprays and the test panel moves from left to right (and vice versa) |
Features
Accurate simulation of laboratory car wash conditions
Uniform brush and fluid application ensures consistent scratch testing
Adjustable parameters allow for precise replication of real-world testing scenarios
High repeatability for R&D, quality control, and comparative coating studies
Compliance with multiple international standards guarantees test validity
Accessories
Stainless steel spray nozzles
Test panel holders with adjustable height
Control panels for flow rate and rotation speed
Cleaning and maintenance tools
Standardized washing suspension solution
Test Procedures
Sample Preparation:
Select a representative test panel in accordance with ISO 15528.
Inspect and prepare each sample according to ISO 1513.
Test Panel Setup:
Ensure the test panel is flat, deformation-free, and conforms to required dimensions.
Panel thickness should be 0.5–5 mm; for other thicknesses, adjust the brush depth and angle via the panel holder.
Testing Procedure:
Conduct the test at room temperature (20–30°C).
Determine the testing area for each device using a control panel, especially after replacing the electric brush. The gloss difference between the test area and the scratch region should not exceed 15 gloss units.
Exclude evaluation within 5 cm from panel edges or along at least 3 cm parallel to the panel movement direction.
Before testing, run the simulator without any test panels for 10 wash cycles (10 bi-directional operations) to evenly distribute the washing suspension and ensure uniform thickness across test areas.
Maintenance Information
Regularly clean brushes and nozzles to prevent residue build-up
Verify rotation speed, feed rate, and spray flow before each test
Replace worn bristles and check brush alignment periodically
Calibrate control system according to manufacturer recommendations
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