Although waterproofing applications may appear straightforward, certain details are essential to achieve the best results. Let’s review these important steps:
1. Moistening the Base Layer Properly
Before applying the waterproof coating, the base layer should be slightly moistened but free of standing water.
If too dry, the base absorbs the coating’s emulsion, leading to chalking, reduced strength, and pinholes in the waterproof layer.
However, visible water on the base can dilute the coating, resulting in uneven application and compromised waterproofing. The base should be evenly moist but without puddles.
2. Avoiding Thick, Single-Coat Application
Applying the coating too thickly in one layer can cause the surface to dry while the inner layer remains uncured,
leading to bubbles or cracking as moisture evaporates. Corners are especially prone to these issues due to material buildup. Instead, apply in thin, multiple coats for best results.
3. Ensuring Each Coat Dries Before Reapplying
Follow a “crisscross, thin layers, multiple coats” method. Typically, 2-3 coats are ideal, with each new coat applied only once the previouslayer is fully dry and non-sticky.
Applying too soon can weaken the first coat, causing bubbles and cracks in the structure.
4. Waiting for Full Curing Before Testing with Water
Performing a water test before the waterproofing layer has completely cured may damage its structure, resulting in peeling or detachment.
Only conduct the water test after full curing to ensure durability and a stable waterproofing effect.
5. Strengthening Key Areas
Corners and pipe bases are common weak points that can lead to cracking and leaks. Use sealing materials to round corners,
and apply extra waterproof layers at these critical points to prevent leakage.
6. Adding a Protective Layer After Waterproofing
Without a protective layer, the waterproof coating can be damaged during future construction stages,
which may compromise its waterproofing ability. Adding a protective layer ensures the waterproofing remains intact and effective over time.
By keeping these details in mind, you can greatly enhance the quality and effectiveness of any waterproofing project.
