The mounting foam performs a fixing and strengthening function, and after its solidification, polyurethane foam is formed, which has a rigid base that affects the quality of curing. Technical characteristics of mounting foam
The temperature at which you can use foam.
The speed and degree of firmness of the foam depends on the value of air humidity and it will freeze for a long time in cold and dry air. Installation foam is produced seasonal, which are divided into summer and winter. Foams are also made for installation, which can be used in all seasons. Their composition allows you to accelerate polymerization and such foam can be used in the cold at temperatures below zero degrees. The temperature of the winter foam in the spray can is approximately from -18 degrees of cold to +35 degrees of heat. If you spray such a foam, its volume will be rapidly decreasing by a value depending on air temperature.
The temperature optimal for the use of summer foam ranges from +5 degrees of heat to +35 degrees. It does not change the temperature of hardened foam, which is equal to the interval of -50 degrees of cold up to +90 degrees of heat.
Expansion of mounting foam.
The foam expands as follows: during the exit from the cylinder, she has a volume that increases after contacting with the surface. The large size of the expanded foam can deform the building.
Viscosity.
Good viscosity of the mounting foam is elastic and does not allow it to slide from the surface. Technical characteristics of mounting foam should be taken into account during its use
– To properly connect the seam by foam, you need to follow the instructions for its use.
– Before starting to spray foam, the cylinder must be shaken so that the foam expands.
– With severe frosts, the cylinder before use can be heated in warm water.
– For better hardening foam, it is necessary to moisten the gap where it will be made.
– After applying the mounting foam, it is necessary to let it dry for one hour and remove the rest of the mounting foam with a knife.
Technical characteristics will help to choose the right installation foam.