Hairline cracks are a problem that often haunts after plastering and plastering walls. Hairline cracks are a condition where thin cracks appear on the walls of the house when the plaster has dried. Even though it is thin, the presence of hairline cracks still interferes with the aesthetics of the interior of the house. Not only that, hairline cracks if left unchecked will also affect the resistance and strength of the walls of the house

According to PT. Jayabrix Indonesia, the appearance of hairline cracks on the wall can be caused by several factors. However, the most common occurs due to the development process that is less than optimal. Whether it's in the selection of cement and mixing the dough.

"The use of cement that is of poor quality can also be a factor in the occurrence of hairline cracks. In addition, the composition of the plaster and plaster mix also greatly affects the results of the walls. Mistakes in the composition of the dough, for example too much cement can also cause hair cracks. Because, when dry, the cement substance tends to shrink and cause hair cracks," said Naryo, Thursday (25/11/2021).

To anticipate the occurrence of hairline cracks on the wall, the quality of the cement used must be paid close attention. Indeed, high-quality cement will cost more in the market. However, the use of cheap cement whose quality is doubtful will actually add a lot to the cost of wall repairs.

Besides that, the quality of the mason's work is also very decisive. Because, in the conventional way, there are no standard rules regarding the composition of cement for plastering and plastering walls. It could be that between one mason and another, the composition used is different.

"Actually there is a practical way to minimize the occurrence of hairline cracks in walls. Namely by using special cement mortar for plastering walls and plastering walls. The advantage of this cement mortar lies in its practicality," added Naryo.

Cement mortar is often called instant cement. As the name implies, this cement can be used only by mixing water according to the instructions. Because, in the cement mortar does not only contain cement. But some materials such as sand and other substances with the right composition according to their designation.

"Because the composition is right, there's no need to bother anymore. Just add water according to the instructions which are generally located on the back of the package. Wall plaster and wall plaster dough can be applied immediately. Use special cement mortar for plaster and wall coverings can minimize the occurrence of hairline cracks," he explained.

But what should be remembered is not to make the mistake of buying cement mortar. Because, in the market there are many types of cement mortar. Where each type has its designation and use of each. So it must be ensured that the cement mortar used is specifically for plaster and wall coating

Besides that, also make sure that the cement mortar used comes from a manufacturer whose quality is trusted. Because, the high use makes there are lots of cement mortar products on the market. Don't get carried away with low prices but unreliable quality cement mortar.