Pool Plaster Calculator

Traditional pool plaster is a cementitious coating applied at 3/8" to 1/2" thickness (roughly 10 to 12 mm). At this thickness, each 80 lb bag covers approximately 22 to 25 square feet. A standard 700 square foot pool requires approximately 28 to 32 bags, which adds up to 2,200 to 2,500 lbs of plaster mix alone, plus bonding agent. That is a significant amount of material to transport, mix, and apply on site.

SKIN Microplaster takes a fundamentally different approach. Using micro-ceramic waterproofing technology, it creates a complete, impervious barrier at just 1 to 2 mm thickness. The same 700 square foot pool requires only seven 10 KG containers of dry compound and seven 2.5 liter jugs of resin, totaling approximately 196 lbs. That is roughly 90 to 93% less material by weight compared to traditional plaster.

A Waterproof Membrane, Not Just a Coating

The reason SKIN Microplaster can be so much thinner is that it functions as a high-performance waterproofing membrane rather than a porous fill material. Traditional plaster is inherently porous. It absorbs water, which is why it needs to be applied thick and why concrete pools often experience water loss, chemical absorption, and eventual structural degradation. SKIN creates a non-porous, breathable barrier that prevents water from penetrating the concrete while still allowing trapped moisture to escape outward.

Simpler Application Process

Because of the reduced material volume, the application process is more straightforward. SKIN Microplaster is mixed directly in the pool using a standard mixing drill with a sheetrock mud whip attachment. Walls are worked from the top down, and the floor is completed in a continuous pass. This eliminates cold joints and burn lines that are common with traditional plaster applications. There is no complicated curing process: the surface air dries over a few days, and the pool can be filled and swum in after 72 hours.

No Bonding Agent Required

Traditional pool plaster requires a bonding agent to be applied to the pool shell before the plaster coat. This adds material cost, preparation time, and another potential point of failure if the bonding agent is applied incorrectly. SKIN Microplaster bonds directly to concrete, existing tiles, and coping surfaces without any additional adhesive. It can also go over existing finishes, which further reduces preparation work.

Less Weight, Less Waste

The weight difference between the two products has practical implications beyond the pool itself. Transporting under 200 lbs of SKIN Microplaster versus over 2,000 lbs of traditional plaster means lower shipping costs and a smaller logistical footprint. On the job site, fewer bags to carry and mix translates to faster setup. And because microplaster is applied at a thin, controlled thickness, there is less material waste and runoff during the application.

Chemical and Environmental Resistance

Traditional plaster deteriorates over time due to exposure to chlorinated water, pH imbalances, and minerals. Staining, etching, and roughness are common within a few years of application. SKIN Microplaster's non-porous surface resists chemical attack and does not absorb pool chemicals into the concrete shell. This protects both the finish and the underlying structure, including the rebar, from corrosion and degradation. The result is a longer-lasting finish that maintains its appearance and performance over time.