1, in the purchase of building sealant, structural sealant shall not be used for each other. In particular, structural sealants shall not be used as building sealants. Although structural sealant is expensive and more advanced, it is reduced to a small generation of building sealant, but building sealant is mainly used for external building sealing, and has higher requirements for weather resistance, which is difficult for structural sealant to do.
2, in the purchase of building sealant, structural sealant must use neutral glue, should be used within the period of validity, expired building sealant and structural sealant shall not be used.
3, the current use of building sealant and structural sealant is mostly imported, but also a small amount of domestic, whether imported, or domestic, must hold a national certificate of quality and a variety of performance test report.
4, for structural sealant, in addition to do a variety of performance testing, should also be done with the contact material compatibility test, the so-called compatibility refers to the structural sealant and these materials contact, only play a bonding role, without any chemical changes that affect the bonding performance.
5, in the construction of what kind of glue, according to the use of purpose and parts, construction conditions, batch size and other factors to determine the comprehensive economic and technical comparison.