Faq

  • 19. Can flexible stone be submerged in water for long periods?

    Yes, flexible stone can remain submerged in water without issues. For example, it has been used in projects like the Country Garden Songhu Mingzhu and Jintai Tang 618 Marketing Center, where the product is applied to landscape water curtain walls. More related case studies can be viewed by clicking the link on the left.

  • 20. Will flexible stone fade over time?

    No, flexible stone is designed for long-lasting durability. Keda Mei focuses on the texture quality of its products, using a unique patented 3D full-color material. This material has high compatibility with the base material, ensuring color retention and long-lasting performance without fading over time. 

  • 21. How resistant is flexible stone to stains, and how should it be cleaned?

    The stain resistance of embossed products is rated level 2, which is similar to that of ceramic tiles and cultured stone.

    • If stains occur, they can be easily wiped off with a semi-dry sponge.
    • For stains that have been on the surface for a longer time, causing penetration, you can repair the affected area with a matching color paste.

  • 22. How is the freeze-thaw resistance of flexible stone?

    21Parkhouse flexible stone has undergone up to 100 cycles of freeze-thaw testing between -30ºC to 50ºC without any surface powdering or cracking, making it resistant to both indoor and outdoor low temperatures. The product can be applied on insulation layers and composite with insulation materials or boards, and is widely used in cold regions with large seasonal temperature variations, such as Xinjiang, Heilongjiang, Liaoning, Shandong in China, and Russia and Finland overseas.

  • 23. Does flexible stone have pores on the surface?

    Yes, flexible stone is a breathable material, and the surface naturally contains a small number of pores randomly distributed. This is part of the product’s natural characteristics and does not affect the overall aesthetic appearance.

  • 24. What is the principle behind the sound absorption and noise reduction of flexible stone?

    Noise energy comes from two sources: direct sound from the source and reflected sound from the room's surfaces. Flexible stone, being a breathable and porous material, combined with its strong texture (such as embossed patterns), scatters the sound when it encounters it, helping to reduce the energy of sound reflection to some extent. However, flexible stone is not a dedicated sound-absorbing material. While it can help reduce noise to a degree, it cannot fully replace acoustic panels designed specifically for sound absorption.

  • 25. Is flexible stone prone to cracking?

    No, flexible stone is not prone to cracking. The main components of flexible stone are stone powder, clay, and other natural inorganic materials, which are pressed at low temperatures to retain their inorganic properties while providing flexibility and the ability to bend. However, it cannot be broken by hand. Once installed on the wall, due to its stretching and flexibility, even when applied to high-rise exterior walls, it is highly resistant to cracking and detachment, ensuring a high level of safety.

  • 26. What is the lifespan of flexible stone? What is the longest-lasting project?

    21parkhouse flexible stone is tested to withstand 2000 hours of artificial aging, which corresponds to the same lifespan as the building. An example is the Guangzhou Asian Games urban renovation project in 2009, which used Keda Mei flexible stone, and it has now been 14 years. Compared to nearby wall materials such as paint and ceramic tiles, flexible stone maintains a higher level of cleanliness over time.

  • 27. How can the use of flexible stone on exterior walls meet building code standards?

    For buildings under 100 meters in height, flexible stone can be applied using the wet bonding method. To ensure compliance with local building safety codes, a pull-off test can be performed during the sample wall phase, as per the requirements of local construction standards. This ensures that the installation meets the necessary safety and performance criteria.