How to choose sealant? Here, and doors and Windows sealant sales company Xiaobian look at the following sharing content!
Due to the sealant product brand more and more, before use should be based on the use conditions of the sealing parts, sealing pair material, sealing pair joint surface state, the type and performance of the sealing medium and curing conditions are considered comprehensively.
About the use of conditions: including force state, working temperature, environment and sealing auxiliary parts need detachable.
About the material of sealing auxiliary parts: Generally for non-metallic parts, low strength sealant can be selected. For metal parts, high strength sealant should be used.
About the state of the sealing pair: it includes the size and shape of the clearance, surface roughness, and whether there is oxide sheet in the assembly state of the sealing pair.
In general, when the gap is large, or the surface is rough, the sealant with high viscosity should be selected. When the sealing area is large or the sealing surface is smooth, the sealant with small viscosity should be selected.
About the type of the sealed medium: should pay full attention to the compatibility between the sealed medium and the selected sealant, that is, to ensure the stability of the chemical and physical properties of the sealant itself in the working state, so that it is compatible with the sealed liquid.
About curing conditions: if the use of anaerobic glue, should pay attention to whether there are conditions to do with the air isolation.
If, at the work site can not achieve heating and complex to promote the glue curing process conditions, you should choose at room temperature, and do not need to isolate the air requirements of other types of sealant. Or, control and reduce the sealing clearance of the mating surface. At the same time, the catalyst component which can shorten the curing time is added to the glue solution of anaerobic glue.
The above information is for reference only. Xiangyang Auman Environmental protection Materials Co., Ltd. is engaged in: building sealant, door and window sealant,995 structural glue,995 neutral silicone glue, weather resistant glue, glass glue R & D, production and sales as one of the high-tech enterprises, welcome to inquire!