In addition to its other features, a foam insulation spray gun is also highly portable and can be used again. The hose is a convenient way to clean the foam-resin mixture and is easy to clean. The nozzle is a nozzle that can be adjusted to produce the correct spray pattern and volume. The valving rod is located at the back of the gun and allows you to adjust the amount of foaming agent and resin you apply. After you’ve finished applying the insulation, you can pull the trigger and let the gun do the rest. The handle is made of fluorocarbon-engineered plastic, while the nozzle is pure copper. These materials make it easy to control the amount of foam you spray. A rotary valve on the handle is used to adjust the flow. This is an important feature for the safety of the user. A spray foam insulation gun with a trigger that releases the mix chamber is a better choice for a job site. The Graco foam insulation spray gun is the best choice for insulation applications. A foam insulation spray gun can be easily disassembled. As shown in FIG. 1, a foam insulation spray gun has three main components: mixing chamber, valve housing, and spray nozzle. When the pump is not in use, the nozzle can be detached, allowing you to clean it with a solvent. The hose must also be disconnected to avoid spilling the product on the floor. If this is the case, a water-based solution can be sprayed in the space. A foam insulation spray gun works by depositing the foam into a predetermined location. As the name implies, it’s an equipment for creating foam. Its operation can be explained with reference to the diagram in FIG. 2. It is a machine for making foam. Its main components include the spray nozzle, the reservoir, and the mixing chamber. Its valve housing is attached to the spray nozzle and allows the spray foam to be applied to a surface. The spray gun of the present invention is an apparatus for mixing polyurethane foam. The gun has a mixing chamber and a nozzle. After the mixing operation, the nozzle ejects the second liquid component into the mixture. The apparatus has a hose that is connected to the mixing chamber. A hose is a long-range tube that can be attached to a wall. Further, the hose can be attached to a handle for a hanging. A foam insulation dispensing gun minimizes waste and mess. Its compact size makes it suitable for filling small spaces, sealing cracks in plaster and installing expanding foam for windows. A polyurethane foam insulation spray gun of the present invention is an apparatus for mixing and applying the components of foam in an efficient manner. Its nozzle is attached to an inner portion of the mixing chamber. Its nozzle is positioned in a position where it can be held by the operator.