I have also done with UBS 220 in long-term use good experiences. On not rusted (!) Underfloor areas a very good and durable preservation layer is built. The product offers next to all-over application also to the repair often easy angeschabte factory existing bituminous layer on the sill attachment points of vehicles to use a hoist.
Due to the transparency of the product a quick visual check of the underlying layers is possible. Duty is naturally but regular inspection of the layer and, if necessary, repair.
