In addition to the displacement capacity requirements, it is recommended to choose good weather resistant sealant to ensure the service life of doors and Windows. Relative to other kinds of sealant, silicone door and window sealant weatherability. Excellent. But the quality of silicone sealant for doors and Windows on the market is uneven. If the silicone sealant doped with cheap mineral oil and powder filler is used, commonly known as "oil-filled glue", there will be a very big quality hazard.
Select the attention point of window and door glass glue
1, people who have some understanding of glass glue should know that glass glue is a kind of organic substance, easily soluble in oil, xylene, acetone and other organic solvent substances, so glass glue can not be constructed with the substrate containing such substances.
2, ordinary glass glue should have the participation of water in the air to cure, special and special purpose glass glue (such as anaerobic glue) excepted. Therefore, if the construction place is confined space and very dry, the ordinary glass glue will not be effective.
3, the common problem of glass glue is black and mildew, even if the use of waterproof glass glue, mildew proof glass glue, can not completely avoid the occurrence of such problems. Therefore, it is not suitable for construction where there is water or flooding for a long time.
4, glass glue to bond the base material, the surface must be clean, there can be no other attachments (such as dust, etc.), otherwise the glass glue curing will be not strong or fall off the phenomenon.
This kind of door and window glue will not have obvious problems at the beginning of use, but the sealant filled with mineral oil and cured silicone rubber poor compatibility, after a period of time, mineral oil will migrate to the surface of the sealant, sealant quality performance also decreases; If the oil-filled glue contacts with the insulating glass, the filled mineral oil will penetrate into the insulating glass, resulting in oil flow and rainbow phenomenon of the insulating glass seal, leading to the failure of the insulating glass seal.