Background introduction
Swimming pools present one of the most demanding waterproofing scenarios in a building, because the structure is under constant, permanent water pressure rather than occasional exposure. Unlike a kitchen or bathroom, a pool shell holds standing water 24/7, so even a pinhole crack or a poorly sealed construction joint will eventually leak, staining ceilings below or undermining the surrounding structure. Pools also demand a coating that is safe for prolonged water contact — non-toxic and suitable even for food-grade pools — while remaining firmly bonded to the substrate to resist sustained hydrostatic pressure and prevent water tracking behind the membrane.
Program description
1、Concrete structural slab/shell
2、Cement mortar leveling layer (where required)
3、Coating system: CQ108 K11 polymer cement waterproof coating, mixed at a liquid:powder ratio of 6:19, applied at 1.5–2.0 kg/m² for a 1.0mm coating thickness, in a minimum of two cross-laid coats to pool floor and walls
4、Cement mortar protective/bonding layer
5、Tile or finish layer
Matters needing attention
Base surface must be flat, strong, clean, and free of standing water before coating begins.
Powder should be added gradually into the liquid component and stirred until uniform and free of pellets; if the mixture shows any settling, restir immediately before use.
Allow each coat to dry solid before applying the next layer.
All construction joints, pipe penetrations, and corners must be reinforced before coating is applied.
A water-ponding test should be conducted before tiling.
Conforms to JC/T 2090-2011: permeability pressure ≥0.5MPa, compressive strength 12.0MPa, bond strength ≥0.7MPa.
