In the decoration, many people will seal the doors and Windows, so how do you choose the doors and Windows sealant? Next, take a look at the three aspects shared by Zhejiang door and window sealant manufacturers, you can pay attention to!

    First, the correct selection of products that meet the standards

    In the selection process of sealant, in addition to the standards it meets, it should also pay attention to its corresponding displacement level. Displacement capacity is a key indicator to measure the elasticity of sealant. The higher the displacement capacity, the better the elasticity of sealant. The processing and installation of doors and Windows should choose products with displacement capacity not less than 12.5, in order to ensure the long-term air tightness and water tightness of doors and Windows.

    In the process of installation and use of doors and Windows, the bonding effect of ordinary sealant and cement concrete is usually worse than that of aluminum or glass doors and Windows. Therefore, the sealant used for installation of doors and Windows is more suitable for JC/T 881 products. High displacement level products have stronger ability to withstand the change of joint displacement. It is recommended to choose high displacement level products as far as possible.

    Two, according to the use of the correct choice of sealant

    Hidden frame Windows and hidden frame opening fans need structural sealant to play the role of structural bonding. Silicone structural sealant must be used, and its bonding width and thickness should meet the design requirements.

    In the process of door and window installation, stone joints or one side of the stone joints with sealant should be selected in line with GB/T 23261 standard stone special sealant. Fireproof doors and Windows or external doors and Windows with fire-proof integrity requirements are more suitable for fireproof sealant. For application places with special requirements for mildew prevention, such as kitchens, sanitary ware and dark and damp parts, doors and Windows should be sealed with mildew sealant.

    Three, do not choose oil-filled silicone sealant

    At present, the market is full of a large number of oil-filled doors and Windows sealant, this product is filled with a large number of mineral oil, poor aging resistance, will lead to many quality problems.

    Silicone sealant mixed with mineral oil is called "oil-filled silicone sealant" in the industry. Mineral oil belongs to the saturated paraffin oil distillation, because of its molecular structure and silicone is very different, so its poor compatibility with silicone sealant system, after a period of time will be from the silicone sealant migration, penetration out. Therefore, the "oil-filled sealant" is very elastic at first, but after a period of time, the filled mineral oil migrates and penetrates out from the sealant, and the sealant will shrink, harden, crack, and even have the problem of non-adhesion.

    There is more sealant information, please pay attention to Xiangyang Auman Environmental protection Materials Co., LTD., the company is a professional high-tech enterprises, product types, product performance is excellent, welcome to contact us for procurement!