What are the reasons for the slow curing of sealant? 

(1) The temperature is low, and the construction temperature of the sealant should be kept at 10~40℃. If the temperature is low, it is necessary to extend the maintenance time, or take heating measures; 

(2) Low humidity (single component products), the construction humidity of sealant should be maintained at 50~80%. If the humidity is too high, it is not easy to disstick; 

(3) The glue gap is too narrow and too deep (single-component products), because the single-component sealant reacts with water in the air, from the surface to the interior, and gradually solidifies. Therefore, the design size of the glue seam should be reasonable;

 (4) B component is less (two-component products), increasing the proportion of B component; 

(5) The sealant has expired or the quality is wrong, check the production lot number of the glue, and confirm whether the glue is within the shelf life. If there is a problem with the quality of the glue, replace the sealant. 

(6) The curing speed of different types of glue is not the same, it is necessary to understand the difference in the curing speed of glue, two-component > single-component acid glue > single-component ketone oxime type > single-component alcohol type glue, selected according to demand. In the process of use, there are also some differences in the curing speed of different brands of glue