Kärkikoko

Kärkikoko is a Finnish term that translates to "tip size" or "nozzle size" in English. It is most commonly used in the context of spray painting, dispensing adhesives, or applying other materials through a nozzle or tip. The kärkikoko dictates the volume of material that can pass through the opening per unit of time and, consequently, the thickness and width of the spray pattern or bead.

The kärkikoko is typically measured in millimeters or inches, with larger numbers indicating a wider opening and thus a greater flow rate. For example, in airless spray painting, a larger kärkikoko is suitable for applying thicker coatings like primers or textured paints, while a smaller kärkikoko is used for thinner paints and finer finishes. Similarly, when dispensing adhesives, the kärkikoko influences the bead size and the speed at which the adhesive can be applied.

Choosing the correct kärkikoko is crucial for achieving the desired application results. Factors such as the viscosity of the material being applied, the desired coverage, and the application method all play a role in selecting the appropriate tip size. Using a kärkikoko that is too small can lead to clogging and an insufficient flow rate, while a kärkikoko that is too large can result in excessive material usage and a poor finish. Manufacturers of paints, adhesives, and spray equipment usually provide guidelines for recommended kärkikoko based on their products.