A small sieve is used for sifting it.

In this case, the second primer should not be done immediately, but only after some time, usually it reaches one day.

Some owners of heating devices are wondering: is it possible to make a solution to a solution without chalk? In rare cases, it is permitted, but in this case coloring will need to be done not once — twice, but more, sometimes up to four times. Since without the use of chalk, the primer will have a dark green color, it will be very difficult to close it. We make a reservation regarding substances used for solutions. Firstly, chalk should be added to a well-sifted form. A small sieve is used for sifting it. Subsequently, through the same sieve, you can strain the already finished primer, then insoluble soap and glue will not swim on the surface of the solution.