The underbody is sealed, and PVC sealant is sprayed on the underbody, which can be divided into robot and manual. It is not a toxic or harmful post, but it is not good to have too much contact with PVC.
Besides:
1、UBS=UnderBodySealing? Welding seam sealing under the vehicle.
2.IBC = body coating.
3.IBS = internal body seal. Welding seal in the car.
4.SGC = anti-stone coating.
5.LASD = liquid hot melt pad/liquid sound insulation pad.