Crack sealing treatments should be placed when the cracks are at their midpoint to maximum point of expansion. This is not always practical since cracks are at their maximum point of expansion during the coldest months. Most crack fillers and sealants have limitations to their ability to wet and form films at low temperatures. This is due to either a high viscosity or the fact that they are emulsified.
In addition, winter climates make working conditions difficult and in some regions impossible. Bearing these considerations in mind, the fall is typically the best time for application. At this time air temperature are typically between 7°C and 18°C (45 to 65°F) in most parts of China. Under these conditions, cracks are usually at or near their mid-point of movement, which helps to ensure that the crack sealant or filler will not be extended or compressed too much when temperatures increase or decrease, respectively, following application of the sealant or filler.
As a professional manufacture for crack sealing machine, Shanghai Doan Machienry Technology Co.,Ltd advice you it is better to crack sealing in the spring or fall because of the mild temperature can make the crack last longer time for using. If you have any question aboutclimatic conditions for crack sealing, please feel free to contact us now.
