Answer to the knowledge of sealant

Answers to the knowledge of sealants 1. What aspects should be paid attention to in the construction and selection of sealants for building curtain walls? Good quality products should be selected for sealants for building curtain walls. The strength of structural adhesives and the ability of mechanical seals to be resistant to the displacement of mechanical seals , And these products must have major engineering application examples. The sealant should be tested for adhesion, compatibility and pollution before construction. During construction, the construction process should be strictly followed, and the sealant manufacturer's mechanical seal for the kettle can provide technical support before, during and after the construction. 2. What kind of glue is used for hanging the glass pendant, how to use it, and what kind of light is used for the shadowless glue? Hanging glass usually refers to the hanging glass that hangs all-glass glass curtain wall, usually fixed with metal fixtures and hardware. Shadowless glue is a type of adhesive that must be cured by ultraviolet light. According to different application requirements, shadowless glue light sources can be divided into high-pressure mercury vapor discharge lamps and low-pressure mercury vapor discharge lamps. 3. Why in the summer some neutral glue will show many bubbles after curing at the junction of concrete and metal window frame, but some will not? Is it a question of quality? Why is there no similar appearance? At present, neutral silicone adhesives for construction are usually divided into two types: dealcoholization type and ketoxime type. If the dealcoholization type neutral silicone sealant is touched with cement concrete, a chemical reaction may occur and the glue joint will be cured. There are many bubbles. Switching to neutral silicone sealant of deketoxime can prevent the appearance of bubbles.