“Less than a year after renovation, the bathroom started leaking, and the floorboard is swollen.” — Many waterproofing workers have encountered such troubles. Many leakage problems are not due to poor waterproof materials but because of common mistakes (“landmines”) during construction. Here, we will reveal these “hidden pitfalls” one by one and recommend using Qinglong Waterproof series products. Combined with correct construction techniques, the results can truly be “completely watertight.”
01. Didn’t Moisten the Base Before Coating? One Wrong Step Can Ruin Everything
From Qinglong’s technical service cases, many households did not sufficiently moisten the base before applying coatings such as all-purpose glue. This causes the waterproof coating to be strongly absorbed by the base’s high-water absorption, creating a weak layer with no strength, easy to powder, and full of pinholes. It is recommended to evenly moisten the base with clean water before construction, but without visible water. Especially recommended to use with all-purpose glue for strong penetration and good adhesion.
02. Starting Construction When the Base Has Visible Water? Beware of Whitening and Cracking
A moist base will dilute the waterproof coating, disrupting the original mix ratio and structure, causing whitening, layering, and other problems. Qinglong Waterproof reminds you to wait until the base has no visible water and is slightly dry before construction.
03. Applying Too Thick a Coat — Looks “Safe” But Is Actually a “Bomb”
A single thick coat easily causes bubbles and cracks, especially at corners and junctions which are high-risk areas. It is recommended to use the “thin multiple coats” method for a more even and better effect.
04. Applying a New Coat Before the Previous One Dries? The Effect Will Reduce Instead of Increase
Insufficient interval between coats destroys the structure of the first membrane. Qinglong recommends 4–8 hours between layers and using a crosswise brushing method for a more stable waterproof layer.
05. No Protective Layer? All Effort Is Wasted
Later renovation activities like bricklaying or wall building can easily damage exposed waterproof layers. It is recommended to add a special protective layer which not only prevents damage but also extends the coating’s lifespan.
06. Doing a Water Test Before the Waterproofing Is Fully Dry? You’re Wasting Your Work!
Qinglong’s R&D department reminds that the water test should be done only after the coating has completely cured for 48 hours. Testing too early will cause the waterproof layer to peel or bubble.
07. Diluting the Coating with Water Without Permission? It’s “Ruining the Material”
Some construction teams add water or cement to the coating for convenience, seriously affecting waterproofing performance. Every Qinglong product is precisely formulated; please use it as per instructions without altering the mix.
08. Missing Areas in Coating = Hidden Leakage Points
Waterproofing must be done meticulously. Missing spots are like digging traps. Qinglong coatings have uniform color after application, making any missed areas obvious, saving you worry and trouble.
09. Not Rounding Off Inside and Outside Corners? Leaks Start at the “Corners”
Corners and pipe openings are the most prone to cracking during construction. Qinglong recommends using Leak Stopper + Reinforcement Mesh + All-Purpose Glue technique to ensure multiple layers of protection at critical points with zero blind spots.
Summary
In waterproofing renovation, 30% depends on materials, 70% depends on construction. Choosing the right product is only the first step; avoiding these common mistakes is key. Qinglong Waterproof not only provides high-quality materials but also offers a professional nationwide technical service team to support you. Before your next project, save this article to avoid pitfalls and rework!
