Draw Constructio Pattern
The first stage is putting the entire channel on the polyurethane panel. This process is done using pen or pen that draws lines for marking the cutting edge of polyurethane channels. Note that all the measurements specified in pulling the lines on the channels are referred to as the outer dimensions of the channels. Note that the outer dimensions of the channel are equal to the internal dimensions of the canal plus the Persian thickness on the channel.
Glue
The fourth stage of the liquid glue is a keeper, which is attached to the Persian site of the پلی card to put the sides of the channel together. this glue has a PU foundation of polyurethane cards. It can be noticed before the glue is about to glue off any dust. This process should be done in the free space, and after masking tape, we must allow for 10 - 20 minutes with respect to the moisture content of the environment to achieve the glue.
Aluminum Adhesive Tape
The sixth step is to use a standard thickness of aluminum tape, which is usually over 30 microns. This tape is on the paired outer parts of polyurethane sheets for the outer seams of the channel to prevent the oxidation of polyurethane foam against air. When gluing aluminum tape, make sure the surface of the polyurethane sheets is clean.
Mastic
The seventh step after assembling the polyurethane channel, all the seams of the channel that are cut along the Persian lines should be insulated with water-based mastic and the use of water-based mastic is according to the standard. This is both to prevent corrosion of the polyurethane foam against the air and to prevent the release of particles released from the polyurethane foam.