Traditional masonry sand is swept into the paver joints to fill the joints. This process also helps to secure the pavers into place. ... The polymeric sand will harden and set firm to a degree once it is exposed to moisture.

What's the difference between masonry sand and regular sand?

Beach or Dune Sand has a finer and softer texture than mason sand. Its uses include sand boxes, children's play areas, volleyball courts, etc. Fill Sand is a coarse river sand which contains pebbles. ... Mason Sand is a finer crushed sand with more uniform granules than concrete sand and has been screened and washed.

Will Mason sand wash out?

Concrete sand works very well, however, mason sand is sometimes used instead. Neither of these types of sand, however, is the best fit for filling in paver joints. A loose-fill sand will wash away over time or when it is exposed to heavy rains.