When using polyurethane foaming machine for a long time, it is inevitable that there will be some problems. So for the use of polyurethane foam machine, when the problem, know how to solve it is still very necessary.

1. Air hole and air bubble: the material mixing method and stirring time did not make the material mixing evenly; When construction should use power, speed but high agitator. Another reason is that the basic level treatment is not clean to do coating film should be carefully cleaned before the basic level, can not have floating sand and dust base level should not have pores, coating layer pores should be processed according to the process requirements to prevent coating damage caused by leakage.

2. When the paint viscosity is too large for scraping coating construction, a small amount of special diluent can be added to dilute, in order to reduce the viscosity of the addition amount shall not be greater than b material 10%.

3. Drum rise: the base has peeling, sand rise, cracking, not dry, make the coating bond bad; Basic-level construction should operate seriously, after maintenance waits basic-level dry, besmear basic-level coating is solidified first hind press waterproof layer again construction craft besmears brush layer by layer.

4. Damage: during the layered construction of the coating waterproof layer or all the coating construction is completed, before the coating is cured, the operation or the placement of tools and materials will damage or scratch the coating, the integrity of the coating should be protected during the construction.

5. Warped edge of the coating: the edge of the waterproof layer and the lap joint of the sub-brush appear to peel warped edge with the base layer. The main reason is that the basic level is not clean or dry operation of the end is not meticulous, sealing is not good, the bottom coating adhesion is not strong cause warping edge so the basic level to ensure clean, dry, operation to be meticulous.

6, the use of polyurethane foam machine construction should pay attention to fire prevention, construction personnel should take protective measures, the construction site requires good ventilation to prevent solvent poisoning.