Only when your pavers are sanded and sealed will they be able
to maintain joint stability and prevent water from washing away
the paver base, which in turn causes the pavers to sink.
If you do not have a sealant on the pavers they will absorb any
the liquid that is spilled whether that be oil, soda, wine ect.
If you don’t have your pavers sealed you will lose color and
integrity due to damaging UV rays from the sun that can cause
permanent damage.
And many more!