Epoxy Mortar for Swimming Pool Levelling

What is 2-Component Epoxy Mortar?

Epoxy mortar consists of a liquid epoxy base, a hardener, and coarse quartz aggregate. After mixing in the correct ratio (typically 1:1 base-to-hardener by volume, with 1–3 parts aggregate), a paste is formed that remains workable for 30–45 minutes and cures within 24 hours into a rock-hard, chemically resistant mass.

Unlike cement-based levelling compounds, epoxy does not undergo shrinkage cracks during curing, and the surface remains smooth. Unlike PU levelling compounds, epoxy is chlorine-resistant — a requirement for swimming pools.

On-site Procedure

1. Pool emptied, blasted, and dust-free. 2. Moisture measurement (max 4 % volumetric). 3. Check adhesion to tile substrate. 4. Mix in batches that can be processed within 30 minutes. 5. Apply with a levelling trowel and long screed bar on floors; with a hand trowel on walls and stairs. 6. Sand or grind after 24 hours of curing to remove sharp transitions. 7. Dust-free preparation for coating application.

Typical Consumption per Pool Type

For an average renovation with intact but uneven tiling, expect 4–7 kg/m² of mortar. For heavily damaged pools with voids and cracked tiles, this can increase to 10–15 kg/m². PoolFIX supplies epoxy mortar in 25 kg buckets and can provide an accurate quote based on photos and dimensions.

Why No Alternative Materials?

Cement-bound levelling compounds undergo shrinkage and are susceptible to chloride attack. Polyester fillers are UV-sensitive and, on average, 30 % less mechanically resilient. PU mortar can yellow under chlorine. Only 2-component epoxy combines chemical resistance, dimensional stability, and adhesion to mixed substrates.