From a safety standpoint it is advisable that the speed humps have a friction resistance of no less than 0.45 SRT when wet (SKID RESISTANCE TESTER).
The results achieved with our speed humps are: 0.55 to 0.60 SRT when dry and 0.90 to 0.95 when wet.
Flexible rubber material:
Adapts perfectly to road surface irregularities. It softens the impact of vehicles, reduces noise and does not sink into the road surface unlike plastic or metal materials.