Bathroom waterproof coating purchase tips
When it comes to evaluating the quality of bathroom waterproofing, the first thing to check is the quality of the waterproof coating. There are generally two types of waterproof materials available in the market for home use. One is liquid-based waterproof coatings, such as polyurethane and polymer composite coatings. The other is powder-based waterproofing materials like waterproof rubber powder and sealing agents. But how do consumers choose the right type of waterproof material to ensure a safe and long-lasting waterproof layer in their bathrooms?
Introduction to Bathroom Waterproof Coatings
Liquid waterproof coatings mainly include polyurethane coatings, tar-based, and non-tar-based options. Among these, non-tar-based coatings are the most commonly used due to their environmental friendliness and durability. These coatings typically consist of two components: Group A, which acts as a curing agent, and Group B, the main material. They are made from non-tar materials, such as asphalt, additives, and fillers. These coatings offer excellent adhesion, low water absorption, and strong resistance to aging.
Non-tar waterproof coatings are ideal for use in bathrooms and kitchens. Before application, they need to be mixed with a diluent, and then applied evenly on the prepared surface. It's important to maintain an appropriate thickness during each coat—typically more than 2mm is sufficient for effective waterproofing. After the waterproof layer has been tested for leaks, a cement mortar protective layer should be added to prevent damage from sharp objects that could cause future water leakage during construction.
How to Choose the Right Waterproof Coating
(1) Consider the local temperature range and choose a waterproof coating that is suitable for either heat resistance or low-temperature flexibility. In hot regions, opt for coatings with high heat resistance to avoid melting. In colder areas, select flexible coatings that can withstand low temperatures without becoming brittle.
(2) Take into account the degree of deformation in the foundation, structural design, annual temperature differences, daily fluctuations, and vibration factors. Choose coatings with appropriate tensile strength. For roofs with significant structural movement, use coatings with high elongation properties, such as Leibangshi’s flexible JS waterproof coating.
(3) If the roof is exposed to direct sunlight, select waterproof coatings that are resistant to UV and heat aging. This helps extend the service life of the coating.
(4) Avoid using waterproof coatings with long drying times if the roof slope exceeds 25%, as this may lead to improper curing and reduced effectiveness.
Combining Two Materials is Essential:
When purchasing non-tar waterproof coatings, it’s crucial to buy both components together and mix them properly. Non-tar coatings are widely used in the market, and many well-known brands have dedicated stores, making them easily accessible to consumers.
Experts advise buyers not to overlook the importance of purchasing the correct amount of thinner when buying non-tar coatings. Different manufacturers may have varying formulas, so the amount of thinner required can differ. Most thinners are sold in bulk, and their quality can be hard to control. Reputable manufacturers usually sell the coatings in sets, including the necessary thinner. There are also various product grades available, allowing consumers to choose based on their budget and renovation needs.
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