We have to do 12 key points to improve the quality of crack repair.

1, The sealing quality directly affects the effect of the crack injection, so the closed surface cracks must be done well.

2. After the sealant has reached the curing time, then injection.

3, Accurately proportioning sealant.

4, The sealant must be stirred evenly, and there is no bubble mixing in the mixing.

5, The use of special glue injection equipment to injection sealant, and filling sealant with special irrigation equipment.

6, The cracks are dry.

7, The low pressure irrigation is used, and high pressure irrigation is not suitable.

8, Do not plug the vent when the glue is injected.

9. The order of glue injection is correct.

10, The curing temperature is above 0 centigrade.

11, The curing time depends on the temperature, the temperature is high, and the temperature is slow.

12, After the injection must be checked, the disqualification needs to be filled.