Plaster
Plaster is a mixture of water, marble sand or limestone, and white cement. It’s applied to your pool using a flat, rounded-edge trowel. However, it’s not always white and can be dyed to fix a different color scheme.
It’s extremely affordable compared to other resurfacing options, plus it’s classic, simple, and elegant. However, it’s rough to the touch. Algae loves plaster, so you’ll need to do weekly maintenance and acid wash every 3-5 years.
Aggregate
Aggregate finishes are made from a mixture of materials, like pebbles, glass beads, quartz, and cement.
Once applied to your pool, contractors will wipe off the top layer of plaster to unveil the pebbles.
There are two types: exposed and polished. Exposed is when the pebbles are entirely revealed, leaving a bumpy finish or texture. On the other hand, polished produces a smooth texture, so the surface is polished flat.
Tile
Usually made of porcelain, stone, or glass, tile is also a popular choice. You can even mix the types of tile within your pool.
Either glazed, hand painted, or textured, this surface gives your pool a more upscale look. You’ll generally see tile most often on the waterline of a swimming pool.
If you’re looking for a more natural effect, tile is a great way to incorporate that look.
Best of all, it’s easier to clean than aggregate.