Water-resistant putty is a specialized type of construction material used primarily for interior wall preparation. It meets the N-type standard, which refers to the water resistance requirement outlined in the Chinese industry standard "Building Interior Putty" (JG/T 3049-1998). This standard sets the minimum performance criteria that all indoor putty products must satisfy. Any putty that fails to meet these specifications is considered substandard and is not allowed to be sold or used in construction projects. Water-resistant putty is especially useful in areas prone to moisture, such as bathrooms and kitchens, where traditional putties may deteriorate over time. Its enhanced durability and resistance to humidity make it a preferred choice for long-term wall finishing solutions.
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